ts504

RULES FORCLASSIFICATION OF

SHIPS

NEWBUILDINGS

SPECIAL SERVICE AND TYPEADDITIONAL CLASS

PART 5 CHAPTER 4

CHEMICAL CARRIERSJANUARY 2003This booklet includes the relevant amendments and corrections shown in the July 2005 version of Pt.0 Ch.1 Sec.3.

CONTENTS PAGE

Sec. 1 General Requirements ................................................................................................................ 7Sec. 2 Materials and Hull Strength ..................................................................................................... 11Sec. 3 Ship Arrangement and Damage Stability ................................................................................. 12Sec. 4 Arrangement in Hold Spaces ................................................................................................... 15Sec. 5 Scantlings and Testing of Cargo Tanks.................................................................................... 16Sec. 6 Piping Systems in the Cargo Area ........................................................................................... 17Sec. 7 Cargo Heating and Cooling Arrangements ............................................................................. 21Sec. 8 Marking of Tanks, Pipes and Valves........................................................................................ 22Sec. 9 Gas freeing and Venting of Cargo Tanks ................................................................................. 23Sec. 10 Mechanical Ventilation in the Cargo Area .............................................................................. 25Sec. 11 Fire Protection and Extinction.................................................................................................. 27Sec. 12 Electrical Installations ............................................................................................................. 29Sec. 13 Instrumentation and Automation ............................................................................................. 31Sec. 14 Tests after Installation ............................................................................................................. 32Sec. 15 Additional Requirements for Certain Cargoes ......................................................................... 33Sec. 16 Inert Gas Plants ........................................................................................................................ 40Sec. 17 Personnel Protection ................................................................................................................ 41App. A List of Cargoes — Tanker for Chemicals ................................................................................ 43

DET NORSKE VERITAS

Veritasveien 1, NO-1322 Høvik, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

CHANGES IN THE RULES

General

This booklet is a reprint of the previous edition and apart from clari-fications of text and the inclusion of amendments and corrections,published in the July 2002 edition of Pt.0 Ch.1 Sec.3, no other chang-es have been made.

This chapter is valid until superseded by a revised chapter. Supple-ments will not be issued except for an updated list of minor amend-ments and corrections presented in Pt.0 Ch.1 Sec.3. Pt.0 Ch.1 isnormally revised in January and July each year.

Revised chapters will be forwarded to all subscribers to the rules.Buyers of reprints are advised to check the updated list of rule chap-ters printed in Pt.0 Ch.1 Sec.1 to ensure that the chapter is current.

Corrections and Clarifications

In addition to the above stated rule requirements, a number of correc-tions and clarifications have been made in the existing rule text.

Comments to the rules may be sent by e-mail to [email protected] subscription orders or information about subscription terms, please use [email protected] information about DNV and the Society's services is found at the Web site http://www.dnv.com

© Det Norske VeritasComputer Typesetting (FM+SGML) by Det Norske Veritas Printed in Norway

If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of Det Norske Veritas, then Det Norske Veritas shall pay compensation to such personfor his proved direct loss or damage. However, the compensation shall not exceed an amount equal to ten times the fee charged for the service in question, provided that the maximum compen-sation shall never exceed USD 2 million.In this provision "Det Norske Veritas" shall mean the Foundation Det Norske Veritas as well as all its subsidiaries, directors, officers, employees, agents and any other acting on behalf of DetNorske Veritas.

Amended, Rules for Ships, January 2003see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.4 Contents –

CONTENTS

SEC. 1 GENERAL REQUIREMENTS .......................... 7

A. Classification..........................................................................7A 100 Application........................................................................7A 200 Class notations .................................................................7A 300 Special features notations..................................................7

B. Definitions .............................................................................8B 100 Terms ................................................................................8

C. Documentation .....................................................................9C 100 General ..............................................................................9C 200 Plans and particulars .........................................................9

D. Tank Types .........................................................................10D 100 Integral tanks, general ....................................................10D 200 Integral tanks, type a1 .....................................................10D 300 Integral tanks, type a2 .....................................................10D 400 Independent tanks, general .............................................10D 500 Independent tanks, type a3..............................................10D 600 Independent tanks, type a4..............................................10

E. Filling Limits for Cargo Tanks .........................................10E 100 General ............................................................................10

F. Signboards ..........................................................................10F 100 References.......................................................................10

G. Cargo Information .............................................................10G 100 General ............................................................................10

H. Procedures and Arrangements Manual............................10H 100 General ............................................................................10

SEC. 2 MATERIALS AND HULL STRENGTH ........ 11

A. General.................................................................................11A 100 Selection and testing .......................................................11

B. Hull .......................................................................................11B 100 General ............................................................................11

C. Cargo Tanks ........................................................................11C 100 General ............................................................................11

D. Cargo Piping .......................................................................11D 100 General ............................................................................11D 200 Documentation of material quality and testing...............11

E. Hull Strength .......................................................................11E 100 Emergency towing ..........................................................11

SEC. 3 SHIP ARRANGEMENT AND DAMAGE STABILITY......................................................... 12

A. Damage Stability ................................................................12A 100 General ............................................................................12A 200 Requirements for watertight integrity .............................12

B. Cargo Tank Location..........................................................12B 100 General ............................................................................12

C. Location and Separation of Spaces ...................................12C 100 General ............................................................................12

D. Arrangement of Entrances and Other Openings ............12D 100 Accommodation and gas safe spaces ..............................12D 200 Gas dangerous spaces and cargo tanks ...........................13D 300 Access to and within cargo tanks, void spaces and other

spaces in the cargo area...................................................13

E. Guard Rails and Bulwarks ................................................13E 100 Arrangement....................................................................13

F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels ......13F 100 General ...........................................................................13

G. Diesel Engines Driving Emergency Fire Pumps, etc....... 13G 100 General ............................................................................13

H. Chain Locker and Windlass ............................................. 13H 100 General ............................................................................13

I. Anodes, Washing Machines and Other Fittings in Tanks and Cofferdams ................................................................. 14

I 100 General ............................................................................14

J. Slop Tanks ......................................................................... 14J 100 Arrangement ...................................................................14

K. Stowage of Cargo Samples ............................................... 14K 100 General ............................................................................14K 200 Arrangement ...................................................................14

SEC. 4 ARRANGEMENT IN HOLD SPACES .......... 15

A. General ................................................................................ 15A 100 Distance between tanks and hull.....................................15

B. Gas Pressure Relief Devices .............................................. 15B 100 Pressure/vacuum relief valves ........................................15

C. Sealing around Tanks ....................................................... 15C 100 General ............................................................................15

D. Earth Connections ............................................................. 15D 100 General ............................................................................15

SEC. 5 SCANTLINGS AND TESTING OF CARGO TANKS ................................................................ 16

A. Scantlings of Cargo Tanks ............................................... 16A 100 Integral tanks...................................................................16A 200 Independent tanks ...........................................................16

B. Requirements for Testing of Welds and Non-Destructive Testing ................................................................................. 16

B 100 General ............................................................................16B 200 Welding procedure tests..................................................16B 300 Weld production tests .....................................................16

SEC. 6 PIPING SYSTEMS IN THE CARGO AREA 17

A. Pumping and Piping Systems for Bilge, Ballast and Fuel Oil ....................................................................................... 17

A 100 General ............................................................................17A 200 Cargo pump rooms..........................................................17A 300 Cofferdams and pipe tunnels ..........................................17A 400 Spaces for independent tanks..........................................17A 500 Ballast tanks ....................................................................17A 600 Fuel oil tanks...................................................................17

B. Cargo Piping System.......................................................... 17B 100 General ............................................................................17B 200 Cargo pumps ...................................................................17B 300 Arrangement and general design ....................................18B 400 Pressure indication ..........................................................18B 500 Welding procedure tests..................................................18B 600 Testing.............................................................................18

C. Stripping of Cargo Tank and Cargo Lines ...................... 18C 100 General ............................................................................18

D. Discharge of Contaminated Water ................................... 19D 100 Location of discharge outlet............................................19D 200 Sizing of the discharge outlet..........................................19D 300 Cargo Record Book.........................................................19

E. Stern loading and unloading arrangements .................... 19E 100 General ............................................................................19E 200 Piping arrangement .........................................................19E 300 Accommodation entrances..............................................19E 400 Electrical equipment — Fire fighting .............................19

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Rules for Ships, January 2003 Amended,Pt.5 Ch.4 Contents – see Pt.0 Ch.1 Sec.3, July 2005

F. Cargo Hoses......................................................................... 20F 100 General ............................................................................20

SEC. 7 CARGO HEATING AND COOLING ARRANGEMENTS ........................................... 21

A. Cargo Heating and Cooling Arrangements...................... 21A 100 General ............................................................................21A 200 Heating of cargoes with temperatures above 80°C.........21

SEC. 8 MARKING OF TANKS, PIPES AND VALVES..................................................... 22

A. General ................................................................................ 22A 100 Marking plates.................................................................22A 200 Pipelines ..........................................................................22A 300 Marking of independent tanks.........................................22

SEC. 9 GAS FREEING AND VENTING OF CARGO TANKS................................................................. 23

A. Gas Freeing of Cargo Tanks ............................................. 23A 100 General ............................................................................23

B. Tank Venting Systems ....................................................... 23B 100 General ............................................................................23B 200 Tank venting system, type c1..........................................23B 300 Tank venting system, type c2..........................................23B 400 Tank venting system, type c3..........................................24

SEC. 10 MECHANICAL VENTILATION IN THE CARGO AREA .................................................. 25

A. System Requirements ......................................................... 25A 100 General ............................................................................25A 200 Fans serving gas dangerous spaces ................................25A 300 Ventilation of cargo handling spaces ..............................25A 400 Ventilation of spaces not normally entered.....................25

SEC. 11 FIRE PROTECTION AND EXTINCTION .... 27

A. Fire Protection ................................................................... 27A 100 Construction ....................................................................27A 200 Accommodation, service and control spaces ..................27A 300 Firefighter’s outfit ..........................................................27

B. Fire Extinguishing ............................................................. 27B 100 Fire extinguishing in cargo area......................................27B 200 Deck fire extinguishing system in cargo area .................27B 300 Fire extinguishing in cargo pump rooms ........................28

SEC. 12 ELECTRICAL INSTALLATIONS ................. 29

A. General ................................................................................ 29A 100 Application......................................................................29

B. Electrical Installations in Cargo Area and Adjacent to this Area.......................................................... 29

B 100 General ............................................................................29B 200 Cargo tanks .....................................................................29B 300 Cofferdams and other under deck spaces

adjacent to cargo tanks ....................................................29B 400 Cargo pump rooms..........................................................29B 500 Enclosed or semi-enclosed spaces above cargo tanks ....29B 600 Hazardous areas on the open deck ..................................29B 700 Other spaces in the cargo area and in enclosed or semi-

enclosed spaces with direct access to the cargo area ......30B 800 Tweendeck spaces...........................................................30

C. Signboards........................................................................... 30C 100 General ............................................................................30

SEC. 13 INSTRUMENTATION AND AUTOMATION ................................................. 31

A. General Requirements ....................................................... 31A 100 General ............................................................................31

B. Alarm, Indicating and Recording Systems....................... 31B 100 Cargo tank level gauging ...............................................31

B 200 Overflow control ............................................................31B 300 Vapour detection ............................................................31B 400 Cargo temperature measurement ....................................31B 500 Hold leakage alarm ........................................................31B 600 Computer (PLC) based systems for cargo handling .......31B 700 Centralised cargo control ................................................31B 800 Gas Detection in Cargo Pump Room for Flammable

Liquids with Flashpoint not exceeding 60°C..................31

SEC. 14 TESTS AFTER INSTALLATION .................. 32

A. General.................................................................................32A 100 Application......................................................................32

SEC. 15 ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES....................................... 33

A. General Requirements........................................................33A 100 Application......................................................................33A 200 Materials..........................................................................33A 300 Segregation of cargo from bunker tanks .........................33A 400 Separate piping systems ..................................................33A 500 Cargo contamination .......................................................33A 600 Inert gas...........................................................................33A 700 Moisture control (Drying)...............................................33A 800 Cargo pumps in tank .......................................................34A 900 Cargoes not to be exposed to excessive heat ..................34A 1000 Cargoes requiring heating ...............................................34A 1100 Cargo pump temperature sensors....................................34A 1200 Increased ventilation of cargo handling spaces...............34

B. Additional Requirements for Certain Groups of Cargoes ............................................................................34

B 100 Acids ...............................................................................34B 200 Cargoes which have a vapour pressure greater

than 1.015 bar at 37.8°C .................................................34

C. Additional Requirements for Certain Chemicals.............................................................................34

C 100 Ammonium nitrate solution, 93% or less........................34C 200 Carbon disulphide ...........................................................34C 300 Diethyl ether....................................................................35C 400 Hydrogen peroxide solutions of 60%

but not over 70%.............................................................35C 500 Hydrogen peroxide solutions over 8%

but not over 60%.............................................................36C 600 Phosphorus, yellow or white...........................................36C 700 Propylene oxide and mixtures of ethylene oxide/

propylene oxide with ethylene oxide content of not more than 30% by weight ...................................37

C 800 Sulphuric acid .................................................................38C 900 Sulphur liquid..................................................................38C 1000 Alkyl (C7 — C9) nitrates.................................................39

SEC. 16 INERT GAS PLANTS....................................... 40

A. General.................................................................................40A 100 Application......................................................................40A 200 Documentation ................................................................40

B. Materials, Arrangement and Design.................................40B 100 General ............................................................................40B 200 Inert gas systems based on other means than

combustion of hydrocarbons...........................................40B 300 Nitrogen inert gas systems fitted for other purposes.......40

SEC. 17 PERSONNEL PROTECTION ........................ 41

A. General Requirements........................................................41A 100 Protective equipment.......................................................41

B. Safety Equipment ...............................................................41B 100 Safety equipment.............................................................41

C. Medical First-aid Equipment ............................................41C 100 General ............................................................................41

D. Decontamination Showers and Eye Washes ....................41D 100 General ............................................................................41

APP. A LIST OF CARGOES — TANKER FOR

DET NORSKE VERITAS

Amended, Rules for Ships, January 2003see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.4 Contents –

CHEMICALS .................................................................... 43 A. General ................................................................................ 43A 100 List of cargoes.................................................................43

DET NORSKE VERITAS

Rules for Ships, January 2003 Amended,Pt.5 Ch.4 Contents – see Pt.0 Ch.1 Sec.3, July 2005

DET NORSKE VERITAS

Amended, Rules for Ships, January 2003see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.4 Sec.1 –

SECTION 1 GENERAL REQUIREMENTS

A. Classification

A 100 Application101 The rules in this chapter apply to ships intended for car-riage of liquid chemicals in bulk. The requirements are to beregarded as supplementary to those given for assignment ofmain class.

102 Cargoes covered by the classification in accordance withthis chapter are listed in Appendix A, in the following also re-ferred to as the List of Cargoes. Non-hazardous cargoes exceptoil, are covered by the general requirements for main class un-less otherwise stated.

103 The requirements of this chapter are considered to meetthe requirements of the International Code for the Constructionand Equipment of Ships Carrying Dangerous Chemicals inBulk.

104 Chemical tankers also intended for carriage of oil are tocomply with the requirements in Ch.3.

A 200 Class notations 201 Ships built according to Sec.1 to Sec.14 of this chaptermay be assigned the class notation:

Tanker for Chemicals ESP or

Tanker for Chemicals.Ships built for carriage of cargoes not requiring full compli-ance with Sec.1 to Sec.14 may be assigned the class notation:

Tanker for C ESP or

Tanker for Cwhere C indicates the type of cargo for which the ship is clas-sified.

The mandatory ship type and service notation


Tanker for C ESPis to be assigned to self propelled ships having integral tanksintended for carriage of liquid chemicals in bulk in accordancewith IMO's International Code for the Construction and Equip-ment of Ships carrying Dangerous Chemicals in Bulk (IBCCode), or Code for the Construction and Equipment of Shipscarrying Dangerous Chemicals in Bulk (BCH Code), as appli-cable.

202 The requirements for ships with the class notation

Tanker for C ESP or

Tanker for Cwill be considered in each case depending on the nature of thecargo to be carried.

A 300 Special features notations301 In the "Register of vessels classed with DNV", a shipwith the class notation


Tanker for Chemicalsmay be given a series of letters and numbers describing tech-nical features of the ship as described in 302 to 310 (see alsoAppendix A).

302 Ship type

The damage stability standard in accordance with IMO's Inter-national Chemical Code is identified by one of the following

notations:

— Ship type 1— Ship type 2— Ship type 3

See Sec.3.

303 Tank type (a)The tank types are identified as follows:

— a1: Integral tank, type a1— a2: Integral tank, type a2— a3: Independent tank, type a3— a4: Independent tank, type a4

See D.

304 Cargo tank material (ss)

The notation ss indicates that the ship has one or more cargotanks made of stainless steel, solid or clad.

305 Liquid level gauging devices for cargo tanks (b)The liquid level gauging devices are identified as follows:

— b1: open device— b2: restricted device— b3: closed device— b4: indirect device

See Sec.13.

306 Tank vent system (c)The tank vent systems are identified as follows:

— c1: open type vent system— c2: tank vent system, outlet 6 m above deck— c3: tank vent system, outlet B/3, minimum 6 m above

deck, alternatively 3 m above deck and high velocityvalves.

See Sec.9.

307 Ventilation system (v)Ventilation systems outside the cargo tanks are identified asfollows:

— v2: Ventilation system providing 30 air changes per hourin cargo handling spaces

— v3: Ventilation system providing 45 air changes per hourin cargo handling spaces.

See Sec.10.

308 Overflow control (f)The overflow control systems for cargo tanks are identified asfollows:

— f1: high level alarm— f2: high-high level alarm.

See Sec.13.

309 Cargo stripping efficiency (str)The efficiency of the cargo stripping arrangements of a cargotank and associated cargo piping is identified as follows:

— str 0.3: residue quantity not in excess of 0.3 m3

— str 0.1: residue quantity not in excess of 0.1 m3.

See Sec.6.

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Rules for Ships, January 2003 Amended,Pt.5 Ch.4 Sec.1 – see Pt.0 Ch.1 Sec.3, July 2005

310 Cofferdam (k)The meaning of the letter k is:

— k: bunker tanks are separated from cargo tanks by coffer-dams.

See Sec.3.

311 Ship type and tank groups may be indicated in the "Reg-ister of vessels classed with DNV". This will, for a ship withcargo tanks of different technical standard, be limited to thegroups with the lowest and highest technical standard, respec-tively.

EXAMPLE:

A ship has lowest and highest technical standard in tank groups as follows:Ship type 3, a1, b2, c2, v3, f1, str 0.3 and Ship type 2, a2, b3, c3, v3,f2 str 0.1. In the Register of ships the following will be given: Ship type 2,a1.2, b2.3, c2.3, v3, f1.2, str 0.3, str 0.1. Where more than one number isgiven in connection with a letter, all first and second numbers are to be com-bined, respectively.

B. Definitions

B 100 Terms

101 Accommodation spaces are those used for public spaces,corridors, lavatories, cabins, offices, hospital, cinemas, gamesand hobbies rooms, pantries containing no cooking appliancesand similar spaces. Public spaces are those portions of the ac-commodation which are used as halls, dining rooms, loungesand similar permanently enclosed spaces.

102 An air lock is an enclosed space for entrance between anoutdoor gas-dangerous zone on open deck and a gas-safe spacearranged to prevent ingress of gas to the gas-safe space.

103 Boiling point is the temperature at which a liquid exhib-its a vapour pressure equal to the atmospheric barometric pres-sure.

104 Cargo area is that part of the ship that contains the cargotanks, pump rooms and cofferdams, adjacent to the cargotanks, and includes deck areas over the full beam and length ofthe above spaces.

105 Cargo control room is a space used in the control of car-go handling operations.

106 Cargo service spaces are spaces within the cargo area orspaces with openings leading into the cargo area, for work-shops, lockers and store rooms of more than 2 m2 in area.

107 Control stations are those spaces in which the ship’s ra-dio or main navigating equipment or the emergency source ofpower is located or where the fire recording or fire controlequipment is centralised.

108 Cargo tank is the liquid tight shell designed to be the pri-mary container of the cargo.

109 Cofferdam is the isolating space between two adjacentsteel bulkheads or decks. The space may be a void space or bal-last space.

110 Design vapour pressure p0 is the maximum gauge pres-sure at the top of the tank which has been used in the design ofthe tank.

111 Gas dangerous space is:

— a space within the cargo area which is not equipped withapproved arrangements to ensure that its atmosphere is atall times maintained in a safe condition

— an enclosed space outside the cargo area which containscargo piping.

112 The following spaces are gas dangerous spaces:

— cargo tanks— hold spaces— spaces adjacent to integral tanks for cargo— cargo pump rooms and cargo compressor rooms— spaces containing piping, vessels and equipment used in

connection with the cargo, including rooms for contami-nated cargo hoses or other equipment used for loading,discharging or transferring cargo

— enclosed or semi-enclosed spaces having a direct openinginto any gas dangerous space or zone.

113 Gas dangerous zones are:

— Zones on the open deck, or semi-enclosed spaces on thedeck, within a distance of:

— 3 m from cargo tank openings, cargo pipe flanges, car-go valves or openings to gas-dangerous spaces con-taining gas sources, e.g. cargo pipe flanges, cargovalves and cargo pumps

— 3 m from ventilation outlets from cargo pump rooms— 5 m from cargo breathing valves— 10 m measured horizontally from gas outlets from car-

go tanks during loading— the open deck 3 m forward and aft of the cargo tanks,

but including deck above cofferdams and cargo pumproom, up to a height of 2.4 m above the deck.

Guidance note:Gas outlets in this context is defined as any cargo opening usedas gas outlet in conjunction with loading, breathing and gas free-ing operations. For ships with length 90 m or less, somewhatshorter distances may be accepted after consideration in eachseparate case.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

114 Gas safe space is a space not being a gas dangerousspace.

115 Gas safe zone is a zone not being a gas dangerous zone.

116 Hold space is the space in which an independent cargotank is situated.

117 Independent means that a piping or venting system, forexample, is in no way connected to another system and thatthere are no provisions available for the potential connection toother systems.

118 Liquid cargo is cargo with a vapour pressure below 2.75bar absolute at 37.8°C.

119 For the purpose of propylene oxide reference tempera-ture means the temperature corresponding to the vapour pres-sure of the cargo at the set pressure of the cargo tank pressurerelief valve.

120 Separate means that a cargo piping system or cargo ventsystem, for example, is not connected to another cargo pipingor cargo vent system. This separation may be achieved by theuse of design or operational methods. Operational methodsshould not be used within a cargo tank and should consist ofone of the following types:

— removing spool pieces or valves and blanking the pipeends

— arrangement of two spectacle flanges in series with provi-sions for detecting leakage into the pipe between the twospectacle flanges.

121 Service spaces are spaces used for galleys, pantries con-taining cooking appliances, lockers and store rooms, work-shops other than those forming part of the machinery spacesand similar spaces and trunks to such spaces.

122 The following decks are designated tank deck:

— a deck or part of a deck which forms the top of a cargo tank

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— the part of a deck upon which are located cargo tanks, car-go hatches, valves, pumps or other equipment intended forloading, discharging or transfer of the cargo

— that part of a deck within the cargo area which is locatedlower than the top of a cargo tank

— deck or part of deck within the cargo area, which is locatedlower than 2.4 m above a deck as described above.

123 Void space is an enclosed space in the cargo area exter-nal to a cargo containment system, not being a hold space, bal-last space, fuel oil tank, cargo pump or compressor room, orany space in normal use by personnel.

C. Documentation

C 100 General

101 In 200 are specified the plans and particulars which nor-mally are to be submitted. The drawings are to show clearlythat the requirements are fulfilled.

102 Other plans, specifications or information may be re-quired depending on the arrangement and the equipment usedin each separate case.

103 For general requirements related to documentation of in-strumentation and automation, including computer based con-trol and monitoring, see Pt.4 Ch.9 Sec.1.

C 200 Plans and particulars

201 A general arrangement is to be submitted for approvalgiving location of:

— cargo hatches, tank cleaning hatches and any other open-ings to the cargo tanks

— doors, hatches and any other openings to pump rooms andother gas-dangerous spaces

— ventilating pipes and openings for cargo tanks, pumprooms and other gas-dangerous spaces

— doors, air locks, hatches, ventilating pipes and openings,hinged scuttles which can be opened, and other openingsto gas safe spaces adjacent to the cargo area includingspaces in and below the forecastle

— cargo pipes and gas return pipes over the deck with shoreconnections including stern pipes for cargo discharge orgas-freeing of cargo tanks.

202 Plans with the following particulars for the tanks are tobe submitted for approval:

— drawings of cargo tanks including information on non-de-structive testing of welds and strength and tightness testingof tanks

— drawings of support and staying of independent cargotanks

— a complete stress analysis is to be submitted for independ-ent tanks type a4.

203 Plans of the following pumping and piping arrange-ments with accessories are to be submitted for approval:

— diagrams of the cargo piping system including details suchas expansion elements and flange connections

— bilge piping systems in pump rooms, cofferdams, pipe tun-nels and hold spaces

— arrangement for drainage of cargo pumps and piping in thepump room

— drawing of cargo pump— arrangements for cargo tank stripping and drainage/ strip-

ping of cargo lines— diagram of tank washing— arrangement and location of underwater discharge out-

let(s)

— emergency showers and eye wash with water supply andarrangements to prevent freezing.

204 Plans showing the following equipment and systems areto be submitted for approval:

— arrangement and capacity of air ducts, fans and their mo-tors in the cargo area, drawing and material specificationof rotating parts and casing of the fans

— drawings of portable ventilators and drawings showingwhere and how these are to be fitted

— arrangement for gas-freeing of cargo tanks and cargo lines— arrangement of cargo tank venting systems— pressure-vacuum valves (or reference to possible type ap-

proval)— drawings of gastight bulkhead stuffing boxes— arrangement of cargo heating systems— arrangement of cargo cooling systems— arrangement of possible thermal insulation and specifica-

tion of insulation materials— drawings showing details of design, attachment and loca-

tion of anodes and other fittings in tanks and cofferdams — Procedures and Arrangements Manual for the discharge of

noxious liquid substances.

205 Plans of electrical installations giving the following par-ticulars are to be submitted for approval:

— area classification drawings— drawings showing location of all electrical equipment in

gas dangerous area— single line diagram for intrinsically safe circuits— list of explosion protected equipment with reference to

drawings together with certificates.

206 Fire protection and extinction

The following plans and particulars are to be submitted for ap-proval:

— arrangement and specification of fire water main equip-ment, location of hydrants and stop valves

— specification of water nozzles, pipes, valves and other fit-tings in the fire water main line

— arrangement and specifications of fixed fire extinguishingsystems on deck

— arrangement and specifications of fixed fire smotheringinstallations in enclosed gas dangerous spaces.

207 For documentation regarding inert gas plants, seeSec.16.

208 Damage stability

The following documentation is to be submitted for approval:

— preliminary damage stability calculations— final damage stability calculations

Not required in case of approved limit curves, or if ap-proved lightweight data are not less favourable than esti-mated lightweight data.

The following documentation is to be submitted for informa-tion:

— internal watertight integrity plan.

Detailed description of stability documentation is given inClassification Note No. 20.1.

209 The following control and monitoring systems shall beapproved by the Society:

— cargo and vapour temperature control and monitoring sys-tem

— cargo tank level measurement system— cargo tank overflow protection system

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— cargo valves and pumps control and monitoring system— flammable gas detection system (permanent system only)— inert gas control and monitoring system.

For requirements to documentation, see Pt.4 Ch.9.

D. Tank Types

D 100 Integral tanks, general

101 Integral tanks form a part of the ship's hull and are influ-enced in the same manner and by the same loads which stressthe adjacent hull structure.

102 The design vapour pressure p0is normally not to exceed0.25 bar. If, however, the hull scantlings are increased accord-ingly, p0 may be increased to a higher value but less than 0.7bar.

D 200 Integral tanks, type a1

201 Integral tanks type a1 are built in such a way that thecargo is separated from the sea by a single skin.

D 300 Integral tanks, type a2

301 Integral tanks type a2 are built in such a way that thecargo is separated from the sea by a double skin.

302 Minimum clearance is to be 760 mm between the tankand the ship's shell.

303 Minimum distance between the ship's outer skin and thetank bottom is equivalent to the rule height for the girder in drycargo ships (see Pt.3 Ch.1 Sec.6), but is normally not to be lessthan B/15. Drainage sumps will be considered in each case.

D 400 Independent tanks, general

401 Independent tanks do not form a part of the ship's hull.An independent tank is built and installed in such a way thatthe influence on the tank by the hull's deformation and stressesis minimised. An independent tank does not contribute to thehull strength. An independent tank is normally to have longi-tudinally rigid fixture to the ship in only one transverse plane.Distance between tanks and hull: See Sec.4 A100.

D 500 Independent tanks, type a3

501 Independent tanks type a3 are self-supporting tankswith a design vapour pressure p0 not exceeding 0.7 bar.

D 600 Independent tanks, type a4

601 Independent tanks type a4 tanks are self-supportingpressure vessels with a design vapour pressure higher than 0.7bar and where the internal pressure is carried mainly as tensilemembrane stresses in the tank skin (cylinders, spheres, etc.).

E. Filling Limits for Cargo Tanks

E 100 General

101 Tanks for liquid cargo are to be so loaded as to avoid thetank becoming liquid full during the voyage taking into consid-eration the highest temperature which the cargo may reach.

F. Signboards

F 100 References101 Signboards are required by the rules in:

— Sec.3 D105 regarding plates bolted to boundaries facingthe cargo area and which can be opened for removal of ma-chinery. These are to be fitted with signboard giving in-structions that the plates are to be kept closed unless shipis gas-free.

— Sec.8 regarding marking plates for independent tanks.— Sec.10 A109 regarding pumps and compressors which are

not to be started before the ventilation system in the elec-tric motor room has been in operation for 15 minutes.

— Sec.12 C101 regarding opening of a lighting fitting. Be-fore opening, its supply circuit is to be disconnected.

— Sec.12 C102 regarding ventilation to be in operation be-fore lighting is turned on.

— Sec.12 C103 regarding portable electrical equipment sup-plied by flexible cables. This equipment is not to be usedin areas where there is gas danger.

— Sec.12 C104 regarding welding apparatus. These are notto be used unless the working space and adjacent spacesare gas-free.

G. Cargo Information

G 100 General101 A copy of International Code for Construction andEquipment of Ships Carrying Dangerous Chemicals in Bulk,provisions of this Code, is to be on board every ship coveredby this Code.

102 Information is to be on board, and available to all con-cerned, giving the necessary data for the safe carriage of thecargo. Such information should include a cargo stowage planto be kept in an accessible place, indicating all cargo on board,including each dangerous chemical carried:

1) A full description of the physical and chemical properties,including reactivity necessary for the safe containment ofthe cargo.

2) Action to be taken in the event of spills or leaks.

3) Countermeasures against accidental personal contact.

4) Fire-fighting procedures and fire-fighting media.

5) Procedures for cargo transfer, tank cleaning, gas-freeingand ballasting.

6) For those cargoes required to be stabilised or inhibited, thecargo should be refused if the certificate required by theseparagraphs, is not supplied.

H. Procedures and Arrangements Manual

H 100 General101 Each ship is to be provided with a Procedures and Ar-rangements manual developed for the ship in accordance withthe provisions of the Standards for Procedures and Arrange-ments and approved by the Society.

102 Each ship should be fitted with equipment and arrange-ments identified in its Procedures and Arrangements manual.

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SECTION 2 MATERIALS AND HULL STRENGTH

A. General

A 100 Selection and testing101 Detailed requirement for materials are given in Pt.2.

102 For materials other than mild steel, the Society will stip-ulate requirements as to quality and properties in each case.

103 Where stainless steel in cargo tanks or cargo piping andheating coils is required for the carriage of particular cargoes,the content of molybdenum in the material is not to be less than2.5% if type NV 316 L or NV 316 LN is specified.

104 Clad steel will be accepted if the requirements of Pt.2Ch.2 Sec.3 and Pt.2 Ch.3 Sec.4 are fulfilled. Acceptance ofother linings necessary to protect the structural material will bespecially considered.

105 Requirements for welding procedure tests and produc-tion weld tests are given in Sec.5 and Sec.6.

106 For certain cargoes as specified in Sec.15 or in the Listof Cargoes, special requirements for materials apply.

B. Hull

B 100 General101 Hull materials may generally be selected in accordancewith ordinary practice as given in Pt.3 Ch.1 Sec.2.

C. Cargo Tanks

C 100 General101 Materials for integral tanks and independent tanks type

a3 may generally be selected in accordance with ordinarypractice as given in Pt.3 Ch.1 Sec.2 for hull materials. Materi-als for independent tanks type a4 (pressure tanks) shall bepressure vessel steel in accordance with Pt.2 Ch.2 Sec.2.

D. Cargo Piping

D 100 General

101 Steel is the normal material of construction for cargopipes. Other materials may be accepted for non-flammablechemicals. Grey cast-iron is not accepted as material of con-struction in cargo piping on ships with class notation Tankerfor Chemicals.

102 Bodies of valves and fittings, and pump housings are tobe of cast steel, nodular cast iron Grade NV1 or NV2 or otherapproved material (see Pt.2 Ch.2).

103 Cargo steel pipes are to be tested according to relevantparts of Pt.2 Ch.2 Sec.4.

104 Tank vent piping for tanks made of or protected by cor-rosion-resistant material is to be made of or protected by simi-lar material.

D 200 Documentation of material quality and testing

201 The materials used in cargo piping systems are to be fur-nished with one of the following types of documentation ac-cording to Table D1.

NV certificate, Works' certificate, and Test report are definedin Pt.1 Ch.1 Sec.3.

E. Hull Strength

E 100 Emergency towing

101 Emergency towing arrangements for chemical carriersof 20 000 tonnes deadweight and above shall comply with re-quirements in Pt.5 Ch.3 Sec.2 C600.

Table D1 Documentation of material quality and testing

Type Material Piping system Nominal diame-ter mm

Type of documentation

NV certificate Works certifi-cate Test report

Cargo pipes and heating coilsPressure x

Open ended xFlanges and bolts x

Bodies of valves and fittings, pump housings, source materi-als of steel expansion bellows, other pressure containing com-ponents not considered as pres-sure vessels

Steel, nodular cast-iron grade 1

and 2

Pressure > 100 xPressure ≤ 100 x

Open ended x

Copper alloysPressure > 50 xPressure ≤ 50 x

Open ended x

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SECTION 3 SHIP ARRANGEMENT AND DAMAGE STABILITY

A. Damage Stability

A 100 General

101 The ship is to meet the damage stability requirements ofchapter 2.8 of the International Code for the Construction andEquipment of Ships Carrying Dangerous Chemicals in Bulkeither for:

— Ship type 1,— Ship type 2 or— Ship type 3.

102 The ship is to be supplied with a loading and stability in-formation booklet. This booklet is to contain details of typicalservice and ballast conditions, provisions for evaluating otherconditions of loading and a summary of the ship's survival ca-pabilities. In addition, the booklet is to contain sufficient in-formation to enable the master to load and operate the ship ina safe and seaworthy manner.

103 Maximum allowable VCG curve(s), for the purpose ofchecking damage stability compliance, are to be included inthe stability manual, unless one of the following alternativesare preferred:

a) The loading manual includes, in approved form, all theconditions intended to be used.

b) The loading computer, intended for conditions at sea, in-cludes approved software functions for damage stability.

Reference is made to Pt.6 Ch.9 Sec.1 and Pt.6 Ch.9 Sec.2.

A 200 Requirements for watertight integrity

201 As far as practicable, tunnels, ducts or pipes which maycause progressive flooding in case of damage, are to be avoid-ed in the damage penetration zone. If this is not possible, ar-rangements are to be made to prevent progressive flooding tovolumes assumed intact. Alternatively, these volumes are to beassumed flooded in the stability calculations.

202 The scantlings of tunnels, ducts, pipes, doors, staircases,bulkheads and decks, forming watertight boundaries, are to beadequate to withstand pressure heights corresponding to thedeepest equilibrium waterline in damaged condition.

B. Cargo Tank Location

B 100 General

101 Tanks intended for carriage of cargoes for which Shiptype 1 is required are to be located at a minimum distancefrom the ship's side shell plating of B/5 or 11.5 m, whicheveris less, measured inboard from the ship's side at right angle tothe centre line at the level of the summer load line, and at a ver-tical distance from the moulded line of the bottom shell platingat centre line not less than B/15 or 6 m, whichever is less butnot less than 760 mm from the shell plating.

102 Tanks intended for carriage of cargoes for which Shiptype 2 is required are to be located at a vertical distance fromthe moulded line of the bottom shell plating at centreline of B/15 or 6 m, whichever is less, but not less than 760 mm from theshell plating.

103 For Ship type 3, there are no restrictions in respect ofcargo tank location.

C. Location and Separation of Spaces

C 100 General101 A cofferdam is to be provided at aft end of cargo area.Spaces which may be approved as cofferdams, see F100.

102 Fuel oil bunker tanks are not to be situated within thecargo area. Such tanks may, however, be situated at forwardand aft end of cargo area instead of cofferdams.

The fuel oil tanks are not to extend beneath cargo tanks.

Ships which do not have bunker tanks arranged adjacent to car-go tanks, will get the letter k added to the series of letters andnumbers given in the "Register of vessels classed with DNV".

103 Machinery spaces of category A and boiler spaces are tobe positioned aft of the cargo area, but not necessarily aft offuel oil tanks.

Where deemed necessary, machinery spaces other than thoseof category A may be permitted forward of the cargo area.

104 The lower portion of the cargo pump room may be re-cessed into machinery and boiler spaces to accommodatepumps, provided the deck head of the recess is in general notmore than one-third of the moulded depth above the keel, ex-cept that in the case of ships of not more than 25,000 tons dead-weight, where it can be demonstrated that for reasons of accessand satisfactory piping arrangements this is impracticable, arecess in excess of such height may be permitted, though notexceeding one half of the moulded depth above the keel.

105 Accommodation spaces and service spaces are to be po-sitioned outside the cargo area, but not necessarily aft of fueloil tanks.

Accommodation spaces are not to be situated directly onto fueloil bunker tanks adjacent to cargo tanks.

106 Where the fitting of a navigation position above the car-go area is shown to be necessary, it is to be for navigation pur-poses only, and it is to be separated from the cargo tank deckby means of an open space with a height of at least 2 m.

107 Deck spills are to be kept away from accommodationand service areas through suitable precautionary means, suchas a permanent, continuous coaming of a suitable height ex-tending from side to side.

D. Arrangement of Entrances and Other Open-ings

D 100 Accommodation and gas safe spaces101 For superstructures and deckhouses containing accom-modation and service spaces, the following applies:

— doors, port lights of opening type and other openings to ac-commodation and service spaces or to other rooms withaccess to such spaces are to be located outside gas-danger-ous zones.

102 Access through doors, gastight or otherwise, is not per-mitted from a gas-safe space to a gas-dangerous space (notcontaining gas sources) except for access to service spaces for-ward of the cargo area through air locks when accommodationspaces are aft.

103 Entrances, air inlets and openings to accommodationand service and control station spaces are not to face the cargoarea. They are to be located on the end bulkhead not facing the

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cargo area and/or on the outboard side of the house at a dis-tance of at least L/25 but not less than 3.05 m from the end ofthe house facing the cargo area. This distance, however, neednot exceed 5 m. Port lights facing the cargo area and on thesides of the houses within the distance mentioned above are tobe of the fixed (non-opening) type. Wheelhouse windows maybe non-fixed and wheelhouse doors may be located within theabove limits so long as they are so designed that a rapid and ef-ficient gas and vapour tightening of the wheelhouse can be en-sured. Portlights in the first tier on the main deck are to befitted with inside covers of steel or equivalent material.

104 Cargo control rooms, stores and other spaces not cov-ered by 103 but located within accommodation, service andcontrol stations spaces, may be permitted to have doors facingthe cargo area. Where such doors are fitted, the spaces are notto have access to the spaces covered by 103 and the boundariesof the spaces are to be insulated to A-60 class (see Sec.11).

105 Bolted plates for removal of machinery may be fitted inboundaries facing the cargo area. Such plates are to be insulat-ed to A-60 class (see Sec.11). Signboards giving instructionthat the plates are to be kept closed unless the ship is gas-free,are to be posted on board.

106 Access to gas safe spaces within the cargo area are nor-mally to be arranged from a gas safe zone. An air lock may,however, be permitted between a gas dangerous zone on theopen deck and a gas safe space. The entrance of the air lockshall in that case comply with 107.

107 Entrance through air locks to gas safe spaces is to be ar-ranged at a horizontal distance of at least 3 m from any openingto a gas dangerous space containing gas sources, such asvalves, hose connection or pump used with the cargo.

108 Air locks are to comply with the following require-ments:

— air locks are to be enclosed by gastight steel bulkheadswith two substantially gas tight self-closing doors spacedat least 1.5 m and not more than 2.5 m apart. The door sillheight is to comply with requirements given in Pt.3 Ch.3Sec.6, but is not to be less than 300 mm.

— air locks are to have a simple geometrical form. They areto provide free and easy passage, and are to have a deckarea not less than 1.5 m2. Air locks are not to be used forother purposes, for instance as store rooms.

— an alarm (acoustic and visual) is to be released on bothsides of the air lock to indicate if more than one door havebeen moved from the closed position.

— air locks are to have effective ventilation. Ventilation re-quirements, see Sec.10.

D 200 Gas dangerous spaces and cargo tanks

201 Pump room entrances are to be from open deck.

202 Doors to gas dangerous spaces, situated completelyupon the open deck, are to have as low a sill height as possible.

203 For cargo tanks, no hatches, openings for ventilation. ul-lage plugs or inspection openings are to be arranged in en-closed compartments.

D 300 Access to and within cargo tanks, void spaces and other spaces in the cargo area

301 Arrangements for void spaces, cargo tanks and otherspaces in the cargo area are to be such as to ensure adequate ac-cess for complete inspection.

302 Access to cofferdams, ballast tanks, cargo tanks and oth-er spaces in the cargo area is to be directed from the open deck.Access to double bottom spaces may be through a cargo pumproom, pump room, deep cofferdam, pipe tunnel or similarcompartments, subject to consideration of ventilation aspects.

303 For access through horizontal openings, hatches or man-holes, the dimensions are to be sufficient to allow a personwearing a breathing apparatus to ascend or descend withoutobstruction and also to provide a clear opening to facilitate thehoisting of an injured person from the bottom of the space. Theminimum clear opening is to be not less than 600 mm x 600mm.

304 For access through vertical openings, or manholes pro-viding passage through the length and breadth of the space, theminimum clear opening is to be not less than 600 mm x 800mm at a height of not more than 600 mm from the bottom shellplating unless gratings or other footholds are provided.

305 Smaller dimensions than specified in 303 and 304 maybe approved in special circumstances.

E. Guard Rails and Bulwarks

E 100 Arrangement

101 On tank deck open guard rails are normally to be fitted.Plate bulwarks, with a 230 mm high continuous opening atlower edge, may be accepted upon consideration of the deckarrangement and probable gas accumulation.

F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels

F 100 General

101 Arrangements are to be installed to deal with possibleleakage from cargo pumps and valves in the pump room.

102 Cofferdams are to be of sufficient size for easy access toall parts, and they are to cover the entire adjacent tank bulk-heads with a minimum distance between bulkheads of 600mm.

103 Pump rooms and ballast tanks are accepted as coffer-dams. See also C102.

104 Spaces surrounding independent tanks, are normally ac-cepted as cofferdams.

105 Pipe tunnels are to have ample space for inspection ofthe pipes, and the pipes are to be situated as high as possibleabove the ship's bottom.

106 On ships with integral tanks, no connection between apipe tunnel and the engine room, either by pipes or manholes,will be accepted.

G. Diesel Engines Driving Emergency Fire Pumps, etc

G 100 General

101 Diesel engines driving emergency fire pumps, etc., areto be installed in a gas safe space.

102 The exhaust pipe of the diesel engine is to have an effec-tive spark arrester and is to be led out to the atmosphere at asafe distance from areas of gas danger.

H. Chain Locker and Windlass

H 100 General

101 The chain locker is to be arranged as a gas safe space.Windlass and chain pipes are to be situated in a gas safe zone.

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I. Anodes, Washing Machines and Other Fit-tings in Tanks and Cofferdams

I 100 General

101 Anodes, washing machines and other permanently at-tached equipment units in tanks and cofferdams are to be se-curely fastened to the structure. The units and their supportsare to be able to withstand sloshing in the tanks and vibratoryloads as well as other loads which may be imposed in service.

Guidance note:

When selecting construction materials in permanently attachedequipment units in tanks and cofferdams, due considerationought to be given to the contact spark-producing properties.


J. Slop Tanks

J 100 Arrangement

101 One or more slop tanks for storage of contaminated bilgewater from cargo area and tank washings are to be provided.Means are to be provided to transfer contaminated water to on-shore slop tanks. Cargo tanks may be accepted as slop tanks.

K. Stowage of Cargo Samples

K 100 General

101 Samples, which have to be kept on board, should bestowed in a designated space situated in the cargo area or, ex-ceptionally, elsewhere subject to special approval.

K 200 Arrangement

201 The stowage space should be:

a) Cell-divided in order to avoid shifting of the bottles at sea.

b) Made of material fully resistant to the different liquids in-tended to be stowed.

Guidance note:This may be achieved by placing the bottles in leak tight boxesof resistant material, or arranging a spill containment tray of re-sistant material in the bottom of the locker.


c) Equipped with adequate ventilation arrangements.

202 Samples, which react with each other dangerously,should not be stowed close to each other.

203 Samples should not be retained on board longer thannecessary.

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SECTION 4 ARRANGEMENT IN HOLD SPACES

A. General

A 100 Distance between tanks and hull101 The distance between independent tanks and the dis-tance between such tanks and parts of the hull is to be sufficientto give reasonable space for inspection and maintenance.

Guidance note:The free distance between independent tanks and the inner edgeof ordinary frames should not be less than 500 mm. The freespace between tanks and web frames should be not less than 50mm. The free distance between independent tanks and the inner bot-tom should generally be not less than 400 mm.


102 The distance between the ship's shell and an independenttank is not to be less than 760 mm.

103 The vertical distance between independent tanks and theouter bottom is not to be less than the rule height for the centregirder in dry cargo ships, see Pt.3 Ch.1 Sec.6, and is normallynot to be less than B/15.

Drainage sumps will be considered in each case.

B. Gas Pressure Relief Devices

B 100 Pressure/vacuum relief valves 101 If spaces for independent tanks can be completelyclosed, these spaces are to be equipped with pressure and vac-uum relief valves. The number and size of these valves are tobe decided depending on size and shape of the spaces.

102 The valves are normally to open at a pressure of 0.15 barabove and below atmospheric pressure.

C. Sealing around Tanks

C 100 General101 Efficient sealing is to be provided where independenttanks extend above the upper deck. The sealing material is tobe such that it will not deteriorate, even at considerable move-ments between the tanks and the deck.

The sealing is to be able to withstand all temperatures and en-vironmental hazards which may be expected.

D. Earth Connections

D 100 General101 At least two effective earth connections between eachtank and the hull are to be arranged.

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SECTION 5 SCANTLINGS AND TESTING OF CARGO TANKS

A. Scantlings of Cargo Tanks

A 100 Integral tanks101 Scantlings for integral tanks are to be in accordance withPt.3.

The principles for direct strength calculations given in Ch.3Sec.2 shall be followed.

For materials other than mild steel, the minimum thickness re-quirements will be considered in each case.

A 200 Independent tanks201 Scantlings of independent tanks, constructed mainly ofplane surfaces, are to be in accordance with relevant require-ments given in Pt.3 Ch.1.

Tanks of pressure vessel configuration type (cylinders, spheresetc.) are to be in accordance with the requirements given inCh.5 Sec.5.

B. Requirements for Testing of Welds and Non-Destructive Testing

B 100 General101 Non-destructive testing of tank shell welds for chemicaltankers with Ship type 1 and Ship type 2 notations are to becarried out as given in Table B1. For chemical tankers withShip type 3 notation, non-destructive testing is to be as for oilcarriers.

B 200 Welding procedure tests201 Welding procedure tests are required for independenttanks.

B 300 Weld production tests301 Weld production tests are required for independent tankstype a4 (pressure tanks) and independent tanks a3 (atmos-pheric), if of pressure vessel configuration i.e. cylindrical,spherical.

302 The requirements for weld production testing are as giv-en for independent cargo tanks type C in Ch.5 Sec.5.

Table B1 Non-destructive testing of tank welds

Tank type

Non-destructive testingButt welds 1) 4)

Minimum extent of radiographic testing, % of total weld length

Welds other than butt welds. Surface crack detection, % of total weld length

Integral tanks 2) a1 1% 3)

a2 2% 3)

Independent tank a3 20% 10%, nozzles: 100%

a4 Longitudinal welds: 100% Transverse welds: 10% 10%, nozzles: 100%

1) Butt welds of face plates and web plates of girders, stiffening rings etc. are to be radiographically tested as considered necessary.

2) Guidance: Where double continuous fillet weld is used, full penetration weld at some points is recommended in order to reduce the possibility of leakage along the root of the fillet weld.

3) The extent of surface crack detection will be decided on the basis of the visual inspection of the boundary welds. Normally this will be 2% to 5% of the total weld length.

4) Ultrasonic testing may supplement or substitute radiographic testing in accordance with 102.

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SECTION 6 PIPING SYSTEMS IN THE CARGO AREA

A. Pumping and Piping Systems for Bilge, Bal-last and Fuel Oil

A 100 General101 There is to be no connection between the piping systemsserving the area limited by the aft bulkhead of the cofferdamaft of the cargo area and the forward bulkhead of the cofferdamforward of the cargo area and the systems in the remainder ofthe ship except as specially permitted by this section.

102 The steam temperature in steam pipes in the cargo areais not to exceed 220°C.

A 200 Cargo pump rooms201 Two possibilities for drainage are to be provided, one ofwhich is to be operable from open deck. One ejector with twosources of supply will be accepted.

202 Bilge pump or ejector independent of the cargo pumps isto be fitted for drainage of the cargo pump rooms.

203 The bilge pipes in a cargo pump room are not to be ledinto the engine room.

A 300 Cofferdams and pipe tunnels301 Cofferdams and pipe tunnels are to be provided withsounding pipes and with air pipes led to the atmosphere.

302 Cofferdams and pipe tunnels are to be provided withbilge suctions.

A 400 Spaces for independent tanks401 Spaces for independent tanks are to be connected to abilge system.

402 The capacity is normally to be such that the require-ments given in Pt.4 Ch.6 Sec.4 are complied with. However,these requirements may be reduced by 50%, when the volumeof the tanks is more than 75% of the total volume of the space.

403 Cargo pumps may be accepted for bilge system purposesto spaces for independent tanks when the pumps are so ar-ranged that they effectively can be used for this purpose. Thenecessary pipe connection between cargo pumps and the spacearound the tanks are not to penetrate any part of tank walls sit-uated in closed spaces or lower than the liquid level to maxi-mum filling of the tank. Pipe connections are to be so arrangedthat cargo cannot be pumped into the spaces due to incorrectoperation of valves etc.

A 500 Ballast tanks501 Filling or discharge of tanks within cargo area with bal-last is to be carried out from the cargo pump room or a similargas-dangerous space except as permitted by 502.

502 Pumps, ballast lines, vent lines and other similar equip-ment serving permanent ballast tanks should be independent ofsimilar equipment serving cargo tanks and from cargo tanksthemselves. Discharge arrangements for permanent ballasttanks sited immediately adjacent to cargo tanks should be out-side engine room and accommodation spaces. Filling arrange-ments may be in the engine room provided that sucharrangements ensure filling from tank deck level and non-re-turn valves are fitted.

503 Filling of ballast in cargo tanks may be arranged fromdeck level by pumps serving permanent ballast tanks, providedthat the filling line has no permanent connection to cargo tanksor piping and that non-return valves are fitted.

504 Filling lines to permanent ballast tanks are to be so ar-

ranged that the formation of static electricity is reduced, e.g. byreducing the free fall into the tank to a minimum.

505 Suction for seawater to permanent ballast tanks is not tobe arranged in the same sea chest as used for discharge of bal-last water from cargo tanks, see also B305.

Guidance note:Seawater suction should be arranged at the opposite side from thedischarge of ballast water from cargo tanks.


506 Lines from engine room to ballast tanks forward of car-go area are to be carried outside cargo tanks.

A 600 Fuel oil tanks601 Fuel oil bunker tanks situated at forward or aft end of thecargo area may be connected directly to pumps in the engineroom. The pipes are not to pass through cargo tanks.

B. Cargo Piping System

B 100 General101 A complete system of piping and pumps is to be provid-ed for the cargo tanks.

This system is to be entirely separate from all other piping sys-tems on board.

Steam and water systems are to be connected to the cargo pip-ing only by non-permanent means, and be fitted with a non-re-turn valve in the cargo area upstream of the first outlet branch.

See Sec.9 regarding pipes for ventilation or inerting purposes.

102 The cargo piping system is to be dimensioned accordingto Pt.4 Ch.6 Sec.6. The design pressure p is the maximumworking pressure to which the system may be subjected. Dueconsideration is to be given to possible liquid hammer in con-nection with the closing of valves.

The design pressure for cargo piping is as a minimum to be tak-en as 10 bar.

For chemical tankers certified for a range of cargoes also in-cluding products with density (ρ) above 1.5 t/m3, the permissi-ble stress according to Pt.4 Ch.6 Sec.6 A307 may be increasedby a factor ρ/1.5.

Guidance note:Maximum pressure will occur with cargo pumps running at fullspeed against closed manifold valves.


103 The cargo piping is to be joined by butt welding with aminimum of flange connections.

— Flange types A and B will be accepted in piping systemswith design pressure p > 16 bar. See Pt.4 Ch.6 Sec.6 Fig.4.

— Flange types A, B and C will be accepted in piping sys-tems with design pressure p ≤ 16 bar.

— Flange connections in piping systems constructed of mate-rials other than mild steel, will be especially considered.

B 200 Cargo pumps201 At least two independently driven cargo pumps are to beconnected to the system.

202 In tankers where cargo tanks are equipped with inde-pendent pumps (e.g. deep well pumps) and where the size of

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the tanks is small compared to the total capacity of the ship, theinstallation of one pump per tank may be approved. Satisfacto-ry facilities are to be provided for emptying the tanks in anemergency.

203 Hydraulically powered pumps, submerged in cargotanks (e.g. deep well pumps), are to be arranged with doublebarriers, preventing the hydraulic system serving the pumpsfrom being directly exposed to the cargo. The double barrier isto be arranged for detection and drainage of possible cargoleakage.

204 Where machinery in cargo pump room or other gas dan-gerous rooms are driven by shafting passing into the pumproom through bulkheads or deck plating, gastight glands are tobe fitted. The glands are to be efficiently lubricated and are tobe constructed so as to reduce the risk of overheating. Theglands are to be visible and easily accessible.

Parts which may accidentally come into contact if the seal isbadly aligned or if a bearing is damaged, are to be of such ma-terial that no spark will occur. If an expansion below is fitted,it is to be hydraulically pressure tested.

205 Displacement pumps are to have relief valves with dis-charge to the suction line.

206 Means are to be provided for stopping the pumps froman easily accessible position outside the pump room.

B 300 Arrangement and general design

301 The complete cargo piping system is to be located withinthe cargo area. Bow or stern loading and discharge arrange-ments may be accepted by the Society after special considera-tion.

302 Valves or branch pieces, which connect the cargo pipe-line's shore connection on deck, and cargo piping are to be sup-ported with due regard to load stresses.

303 Expansion elements are to be provided in the cargo pip-ing as necessary. The elements are not to be of the sliding type.

304 Filling lines to cargo tanks are to be so arranged that theformation of static electricity is reduced, e.g. by reducing thefree fall into the tank to a minimum.

305 The discharge of ballast water from cargo tanks is to bearranged in such a way as to prevent the ballast water from be-ing drawn into sea suctions for other pipe systems, e.g. coolingwater systems for machinery.

Guidance note:Ballast water discharges which are located in accordance withMARPOL 73/78, Annex I, Reg. 15 are regarded as satisfactorywith respect to the requirements in 305.


306 Cargo piping systems are not to be installed under deckbetween the outboard side of the cargo containment spaces andthe skin of the ship, unless clearances required in Sec.1 D aremaintained. This requirement does not apply when damage tothe pipe would not cause release of cargo.

307 Means for drainage of the cargo lines are to be provided.

308 Runs of cargo piping, located below the weather deck,may run from the tank they serve and penetrate tank bulkheadsor boundaries common to adjacent (longitudinally or trans-versely) cargo tanks, ballast tanks or empty tanks or pumprooms, provided that inside the tank they serve, the runs are fit-ted with a stop valve operable from the weather deck.

As an exception, where a cargo tank is adjacent to a pumproom the stop valve operable from the weather deck may besituated on the tank bulkhead on the pump room side, providedan additional valve is fitted between the bulkhead valve and thecargo pump.

309 Runs of cargo piping installed in pipe tunnels are also to

comply with the requirements in 308 and 311. The tunnel is notto have any other openings except to the weather deck and thepump room.

310 Runs of cargo piping through bulkheads are not to utiliseflanges bolted through the bulkhead.

311 In any pump room where a pump serves more than onetank, a stop valve is to be fitted in the line to each tank.

312 A stop valve is to be fitted at each cargo hose shore con-nection.

313 A stop valve capable of being manually operated, is tobe fitted on each tank filling and discharge line, located nearthe tank penetration. If individual deep-well pumps are in-stalled, a stop valve at the tank is not required on the dischargeline.

314 Means for gas-freeing of the cargo lines are to be provid-ed.

315 The controls necessary during transfer and or transportof cargoes other than in pump rooms which have been special-ly dealt with are not to be located below the weather deck.

316 If independent tanks are required according to List ofCargoes, all pipe connections shall be above the liquid level.

B 400 Pressure indication401 Pump discharge pressure gauges are to be provided out-side the pump room.

B 500 Welding procedure tests501 Welding procedure tests are required for cargo piping ofaustenitic stainless steel.

502 The requirements are as given in Pt.2 Ch.3 Sec.5 exceptthat Charpy tests are not required for austenitic stainless steel.

503 Special welding procedure tests will not be required ifprevious welding procedure tests for similar material, thick-nesses and welding positions are satisfactorily documented.

Guidance note:In order to comply with requirements for passing radiographictesting of welding of butt joints on stainless steel pipes, it isstrongly recommended that welding is carried out with argon-backing inside piping.


B 600 Testing601 Cargo piping butt welds are to be subjected to radio-graphic testing covering at least 10% of the welded connec-tions, when steel pipes are used. This percentage may beincreased as found necessary by the Surveyor. The quality ofthe welds in steel is to comply with ISO 5817 quality level B.

602 Cargo piping is to be hydrostatically tested in the pres-ence of the Surveyor to a test pressure = 1.5 x the design pres-sure.

If hydrostatic testing of separate lengths of piping, valves, ex-pansion elements etc. has been carried out prior to the installa-tion on board, a tightness test only is required after completionof the installation onboard.

C. Stripping of Cargo Tank and Cargo Lines

C 100 General101 For certain cargoes as indicated in the List of Cargoes,the amount of cargo residues in the cargo tank and associatedpiping is required to be less than the Limits specified in 102and 103.

102 Cargo stripping performance str 0.3 means that theamount of cargo residue in the tank and associated piping does

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not exceed 0.3 m3.

103 Cargo stripping performance str 0.1 means that theamount of cargo residue in the tank and associated piping doesnot exceed 0.1 m3.

104 The verification of the above residue quantities is to bethrough actual testing with water and in accordance with an ap-proved test procedure.

See MARPOL 73/78 Annex II, Standards for procedures andarrangements, Appendix A, 3.

D. Discharge of Contaminated Water

D 100 Location of discharge outlet

101 For discharge of cargo contaminated water an outlet lo-cated below the waterline in vicinity of the turn of the bilge isto be arranged within the cargo area.

102 The outlet(s) is to be located such that the cargo contam-inated discharges will not enter the ship's seawater intakes.

D 200 Sizing of the discharge outlet

201 The internal diameter of the outlet is not to be less than:

QD = discharge rate (m3/h)L = distance of outlet from forward perpendicular (m).

In the case of angled outlets only the velocity component of thedischarge transverse to the ship's longitudinal axis may be con-sidered when determining QD.

The discharge rate assumed as the basis for outlet(s) sizing isnot to be taken less than the aggregate throughput of the wash-ing machines in anyone tank.

D 300 Cargo Record Book

301 All ships having a Certificate of Fitness (COF) or a Nox-ious Liquid Substances (NLS) Certificate for the carriage ofliquid substances as listed in the IBC Code Chapter 17 and 18,are to have on board a Cargo Record Book according to Reg. 9in MARPOL 73/78, Annex II.

E. Stern loading and unloading arrangements

E 100 General

101 Subject to the approval of the Society, cargo piping maybe fitted to permit stern loading and unloading. Portable ar-rangements will not be permitted.

102 Stern loading and unloading lines should not be used forthe transfer of products required to be carried in Ship type 1ships. Stern loading and unloading lines should not be used forthe transfer of cargoes emitting toxic vapours required to com-ply with Sec.9 B400, unless specifically approved by the Soci-ety.

E 200 Piping arrangement

201 In addition to Pt.4 Ch.6 Sec.6, the following provisionsapply:

a) The piping outside the cargo area should be fitted at least760 mm inboard on the open deck. Such piping should beclearly identified and fitted with a shut-off valve at its con-nection to the cargo piping system within the cargo area.At this location, it should also be capable of being separat-

ed by means of a removable spool piece and blank flangeswhen not in use.

b) The shore connection should be fitted with a shut-off valveand a blank flange.

c) The piping should be full penetration butt welded, and ful-ly radiographed. Flange connections in the piping shouldonly be permitted within the cargo area and at the shoreconnection.

d) Spray shields should be provided at the connections spec-ified in a) as well as collecting trays of sufficient capacitywith means for the disposal of drainage.

e) The piping should be self-draining to the cargo area andpreferably into a cargo tank. Alternative arrangements fordraining the piping may be accepted by the Society.

f) Arrangements should be made to allow such piping to bepurged after use and maintained gas-safe when not in use.The vent pipes connected with the purge should be locatedin the cargo area. The relevant connections to the pipingshould be provided with a shut-off valve and blank flange.

E 300 Accommodation entrances

301 Entrances, air inlets and openings to accommodation,service and machinery spaces and control stations should notface the cargo shore connection location of stern loading andunloading arrangements. They should be located on the out-board side of the superstructure or deckhouse at a distance ofat least 4% of the length of the ship but not less than 3 m fromthe end of the house facing the cargo shore connection locationof the stern loading and unloading arrangements. This dis-tance, however, need not exceed 5 m. Sidescuttles facing theshore connection location and on the sides of the superstruc-ture or deckhouse within the distance mentioned above shouldbe of the fixed (non-opening) type. In addition, during the useof the stern loading and unloading arrangements, all doors,ports and other openings on the corresponding superstructureor deckhouse side should be kept closed. Where, in the case ofsmall ships, compliance with Sec.3 D103 and this paragraph isnot possible, the Society may approve relaxations from theabove requirements.

302 Air pipes and other openings to enclosed spaces not list-ed in 301 should be shielded from any spray which may comefrom a burst hose or connection.

303 Escape routes should not terminate within the coamingsrequired by 304 or within a distance of 3 m beyond the coam-ings.

304 Continuous coamings of suitable height should be fittedto keep any spills on deck and away from the accommodationand service areas.

E 400 Electrical equipment — Fire fighting

401 Electrical equipment within the coamings required by304 or within a distance of 3 m beyond the coamings should bein accordance with the requirements of Sec.12.

402 Means of communication between the cargo control sta-tion and the cargo shore connection location should be provid-ed and certified safe, if necessary. Provision should be madefor the remote shutdown or cargo pumps from the cargo shoreconnection location.

403 Ships fitted with stern loading and unloading arrange-ments should be provided with one additional foam monitormeeting the requirements of Sec.11 B208 and Sec.11 B211.The additional monitor should be located to protect stern load-ing and unloading arrangements. The area of the cargo line aftof the cargo area should be protected by the above mentionedapplicator.

DQD

5L--------=

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F. Cargo Hoses

F 100 General101 Liquid and vapour hoses used for cargo transfer are to becompatible with the cargo and suitable for the cargo tempera-ture.

102 Hoses subject to tank pressure or the discharge pressureof pumps is to be designed for a bursting pressure not less than5 times the maximum pressure the hose will be subjected toduring cargo transfer.

103 Each type of cargo hose, complete with end-fittings, isto be prototype-tested at a normal ambient temperature with200 pressure cycles from zero to at least twice the specifiedmaximum working pressure. After this cycle pressure test has

been carried out, the prototype test is to demonstrate a burstingpressure of at least 5 times its specified maximum workingpressure at the extreme service temperature. Hoses used forprototype testing is not to be used for cargo service. Thereafter,before being placed into service, each new length of cargo hoseproduced is to be hydrostatically tested at ambient temperatureto a pressure not less than 1.5 times its specified maximumworking pressure but not more than two-fifths of its burstingpressure. The hose is to be stencilled or otherwise marked withthe date of testing, its specified maximum working pressureand, if used in services other than the ambient temperatureservices, its maximum and minimum service temperature asapplicable. The specified maximum working pressure is not tobe less than 10 bar gauge.

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SECTION 7 CARGO HEATING AND COOLING ARRANGEMENTS

A. Cargo Heating and Cooling Arrangements

A 100 General101 Requirements for water systems and steam systems areidentical to those of Pt.4 Ch.6 unless otherwise stated.

102 The heating and cooling media are to be compatible withthe cargo.

103 Heating or cooling systems are to be provided withvalves to isolate the system for each tank and to allow manualregulation of flow.

104 For any heating or cooling system, means are to be pro-vided to ensure that, when in any other but the empty condi-tion, a higher pressure is maintained within the system than themaximum pressure head exerted by the cargo tank content onthe system.

105 Cargo heating and cooling pipes are not to penetrate thecargo tank boundaries other than on the top of the tank.

106 Means are to be provided for measuring the cargo tem-perature. When overheating or overcooling could result in adangerous condition, temperature alarm is to be provided. Themeans for measuring the cargo temperature shall be of restrict-ed or closed type, respectively, when a restricted or closedgauging device is required for individual substances as shownin the List of Cargoes.

Guidance note:

- A restricted temperature measuring device is subject to thedefinition for a restricted gauging device in Sec.13 B100, e.g.a portable thermometer lowered inside a gauge tube of the re-stricted type.

- a closed temperature measuring device is subject to the defi-nition for a closed gauging device in Sec.13 B100, e.g. a re-mote thermometer of which the sensor is installed in the tank.


107 Where products with a significant toxic hazard are beingheated or cooled, the heating or cooling media are as indicatedin the List of Cargoes to operate:

— in a circuit independent of other ship's services, except foranother cargo heating or cooling system, and not enter theengine room; or

— in a circuit dependent of other services, if the condensateis not returned to the engine room, or

— in a system external to the tanks; or— in a circuit where the medium is sampled to check for the

presence of cargo before it is recirculated to other ship'sservices or into the engine room. The sampling equipmentis to be located within the cargo area and be capable of de-tecting the presence of any toxic cargo being heated orcooled.

Guidance note:

The suitability of the sampling method must be documented foreach product.


108 A cooling system is to be arranged in accordance withthe requirements in Ch.5 Sec.7 A201. In addition the coolingsystem is to comply with the requirements given in Ch.10 tothe extent these are applicable.

109 Steam and exhaust pipes for heating coils fitted in cargotanks, are to be arranged for blank flanging outside the engineor boiler room.

110 Heating medium temperature is normally not to exceed220°C. If cargoes with an auto-ignition temperature lower than220°C are carried, the heating medium temperature is to be ad-justed accordingly, during transfer of cargo.

111 Condensate from cargo heating systems is not to be usedfor feed water for main boilers.

A 200 Heating of cargoes with temperatures above 80°C

201 Heating plants for cargoes with temperatures above80°C are to be arranged with redundancy.

202 Pumps and valve systems are to be suitable for the typeof cargo to be transported.

203 Heating system for cargo pumps and cargo lines to be ar-ranged as found necessary.

204 Temperature gauges are to be arranged in each cargotank enabling the monitoring of temperature at bottom, middleand top of tanks.

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SECTION 8 MARKING OF TANKS, PIPES AND VALVES

A. General

A 100 Marking plates101 Marking plates are to be made of corrosion resistant ma-terial, and are to be permanently fixed to valve handles, flangesor similar parts. Markings, bolt holes, etc. in the tanks them-selves are to be avoided.

The lettering is to be impressed on the marking plate in lettersof at least 5 mm height. The marking plates are to be placed ineasily visible positions and are not to be painted.

A 200 Pipelines201 Pumps, valves and pipelines are to be distinctivelymarked to identify the service and tanks which they serve.General remarks regarding marking of valves are given in Pt.4Ch.6 Sec.3.

A 300 Marking of independent tanks301 Every independent tank is to have a marking plate givingthe following information as relevant:

Tank No.

Design vapour pressure: bar

Maximum cargo density: kg/m3

Capacity of the tank: m3 (98% filled)

Test pressure: bar

Name of builder:

Year of construction:

The marking plate may also be used for the necessary markingof identification.

For definitions of:

Design vapour pressure po, see Sec.1 B.

Test pressure.

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SECTION 9 GAS FREEING AND VENTING OF CARGO TANKS

A. Gas Freeing of Cargo Tanks

A 100 General

101 Means for gas freeing of the tanks are to be provided.

The arrangement for gas freeing cargo tanks should be such asto minimize the hazards due to the dispersal of flammable ortoxic vapours in the atmosphere and to flammable or toxic va-pour mixtures in a cargo tank.

The ventilating system for cargo tanks is to be used exclusivelyfor ventilating purposes. Connection between cargo tank andpump room ventilation will not be accepted.

102 Gas freeing operations should be carried out such thatvapour is initially discharged in one of the following ways:

1) through the vent outlets specified in B300 or B400; or

2) through outlets at least 2 m above the cargo tank deck levelwith a vertical efflux velocity of at least 30 m/s maintainedduring the gas freeing operation; or

3) through outlets at least 2 m above the cargo tank deck levelwith a vertical efflux velocity of at least 20 m/s which areprotected by suitable devices to prevent the passage offlame.

Guidance note:When the flammable vapour concentration at the outlets has beenreduced to 30% of the lower flammable limit and in the case of atoxic product the vapour concentration does not present a signif-icant health hazard, gas freeing may thereafter be continued atcargo tank deck level.


103 The outlets referred to in 102 2) and 102 3) may be fixedor portable.

104 Permanently installed ventilating and gas-freeing sys-tems with non-permanent connections to cargo tanks or cargopiping, are to comply with the following. Where the fans arelocated in a gas-safe space, the air supply piping from the fanis to have an automatically operated shut-off valve and a non-return valve in series. The valves are to be located at the bulk-head where the air supply piping leaves the gas safe-space,with at least the non-return valve on the outside. The shut-offvalve is to open after the fans are started, and close automati-cally when the fans stop.

105 Permanent pipe connections between a ventilating plantor inert gas plant and cargo piping systems will normally notbe accepted.

B. Tank Venting Systems

B 100 General101 In the following the term «pressure relief valve» denotesa safety valve which opens at a given internal pressure aboveatmospheric pressure, and the term «vacuum relief valve» de-notes a safety valve which opens at a given internal pressurebelow atmospheric pressure. By P/V valves are meant com-bined pressure/ vacuum relief valves.

102 The master should be provided with the maximum per-missible loading and unloading rates for each tank or group oftanks consistent with design of the venting systems.

103 Tank venting systems as described below are to be pro-vided according to the List of Cargoes.

B 200 Tank venting system, type c1201 For some particular products an open tank venting sys-tem is applicable.

B 300 Tank venting system, type c2301 The tanks are to have arrangement for pressure/ vacuumrelief during voyage and venting during loading and unloadingwith closed tank hatch covers.

302 Pressure vacuum relief valves are to be fitted to eachtank to limit the pressure or vacuum in the tank.

The venting system may consist of individual vents from eachtank or the vents from each individual tank may be connectedon the pressure side of the P/V-valve to a common header. Dueregard is in that case to be paid to cargo segregation.

303 Shut-off valves are not to be fitted neither above nor be-low P/V valves, but by-pass valves may be provided.

304 The venting system is to be designed with redundancyfor the relief of full flow overpressure and vacuum. Pressuresensors fitted in each cargo tank, and connected to an alarmsystem, may be accepted in lieu of the redundancy requirementfor pressure relief.

The opening pressure of the vacuum relief valves is normallynot to be lower than 0.07 bar below atmospheric pressure.

305 P/V valves are to be located on open deck and are to beof a type which allows the functioning of the valve to be easilychecked.

306 Venting systems to be used for cargoes that may causeclogging of the venting lines, will be specially considered.

307 Intake openings of vacuum relief valves are to be locatedat least 1.5 m above tank deck, and are to be protected againstthe sea.

The arrangement is to comply with the requirements in Pt.3Ch.3 Sec.6.

308 Cargo tank vent outlets are to be situated not less than 6m above the weather deck or above the fore and aft gangway,if fitted within 4 m of the gangway.

The vent height may be reduced to 3 m above the deck or foreand aft gangway as applicable, provided high velocity ventvalves of an approved type with an exit velocity of at least 30m/s, are fitted.

The vent exits are also to be arranged at a distance of at least10 m from the nearest air intake or opening to accommodationand service spaces and ignition sources. The vapour dischargeis to be directed upwards in the form of unimpeded jets.

309 Vapour outlets for tanks to be used for cargoes withflashpoint below 60°C should be provided with devices testedand approved according to IMO MSC/Circ.677 to prevent thepassage of flame into the cargo tanks.. Due attention is to bepaid in the design of P/V valves, flame screens and vent headsto the possibility of the blockage of these devices by the freez-ing of cargo vapour or by icing up in adverse weather condi-tions. Provisions should be made that the system and fittingsmay be inspected, operationally checked, cleaned or renewedas applicable.

310 The vent system is to be sized, allowing for flamescreens, if fitted, to permit loading at a design rate withoutoverpressuring the tank. Specifically, under conditions inwhich a saturated cargo vapour is discharged through the vent-ing system at the maximum anticipated loading rate, the pres-sure differential between the cargo tank vapour space and theatmosphere is not to exceed the design vapour pressure of the

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tank, or, for independent tanks, the maximum working pres-sure of the tank.

311 The venting system is to be connected to the highestpoint of each cargo tank and vent lines are to be self-drainingunder all normal operating conditions of list and trim. Where itis necessary to drain venting systems above the level of any P/V valve, capped or plugged drain cooks should be provided.

312 Provision should be made to ensure that the liquid headin any tank does not exceed the test head of that tank; overflowcontrol systems or spill valves, together with gauging devicesand tank filling procedures may be accepted for this purpose.

Guidance note:Where the means of limiting cargo tank overpressure includes anautomatic closing valve, the valve should comply with Sec.13B200.


B 400 Tank venting system, type c3401 The requirements of 300 apply with the additions givenin 402, 403 and 404.

402 The opening pressure of the pressure relief valves is nor-

mally to be 0.20 bar above atmospheric pressure. The openingpressure of the vacuum relief valves is normally not to be low-er than 0.07 bar below atmospheric pressure.

403 Gas outlets are normally to be at a minimum height of B/3 or 6 m, whichever is greater above the weather deck, or inthe case of a deck tank the access gangway, where B = ship'smoulded breadth. Further, the outlets are not to be less than 6m above the fore and aft gangway if fitted within a horizontaldistance of 6 m from the gangway.

The vent height may be reduced to 3 m above the deck or foreand aft gangway as applicable provided high velocity ventvalves of an approved type, directing the vapour and air mix-ture upwards in an unimpeded jet with an exit velocity of atleast 30 m/s, are fitted.

The outlets are to be situated at a horizontal distance of at least15 m from air intakes, port holes or doors to accommodationand service spaces.

For ships with length less than 90 m, smaller distances may beaccepted.

404 Valved pipe connections for returning the expelled gasesashore during loading, are to be provided.

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SECTION 10 MECHANICAL VENTILATION IN THE CARGO AREA

A. System Requirements

A 100 General

101 Independent ventilation systems are to be provided forgas dangerous and gas safe spaces.

Ventilation systems within the cargo area are to be independ-ent of other ventilation systems.

102 The air intakes for the ventilating systems are to be ar-ranged outside gas dangerous zones at places where is the leastpossible risk of gas, gas-air mixtures or sparks being drawninto the system.

103 Ventilation ducts for spaces within the cargo area are notto be led through engine rooms, accommodation, workingspaces, etc.

104 The capacity of the ventilation plant is normally basedon the total volume of the room. An increase in required ven-tilation capacity may be necessary for rooms having a compli-cated form.

105 Gas safe spaces are to be arranged with ventilation of thepositive pressure type. For gas dangerous spaces where theoverpressure may cause spread of gas to adjacent spaces, theventilation is to be of the extraction type.

106 Gas safe spaces containing ignition sources situated inthe cargo area are to be fitted with a permanent mechanicalventilation system giving at least 8 air changes per hour.

107 The air lock spaces are to be mechanically ventilatedfrom a gas safe space or zone on the open weather deck. Theventilation capacity is to be at least 20 air changes per hour.

108 Ballast pump rooms and tween deck spaces not contain-ing cargo handling equipment (e.g. pumps, valves, etc.) are tobe provided with a mechanical ventilation system giving atleast 20 air changes per hour.

109 Ventilation systems for pump rooms, compressor roomsand other cargo handling spaces are to be in operation whenpumps or compressors are working. Pumps and compressorsare not to be started before the ventilation system in the electricmotor room has been in operation for 15 minutes. Warning no-tices to this effect are to be placed in an easily visible positionnear the control stand.

110 Electric fan motors are not to be installed in ventilationducts for cargo handling spaces.

111 Starters for fans for ventilation of gas safe spaces withinthe cargo area are to be located outside this area or on opendeck.

If electric motors are installed in such rooms, the ventilationcapacity is to be great enough to prevent the temperature limitsspecified in Pt.4 Ch.8, from being exceeded, taking into ac-count the heat generated by the electric motors.

112 Wire mesh protection screens of not more than 13 mmsquare mesh are to be fitted in outside openings of ventilationducts.

For ducts where fans are installed, protection screens are alsoto be fitted inside of the fan to prevent the entrance of objectsinto the fan housing.

A 200 Fans serving gas dangerous spaces

201 Fans are to be designed with the least possible risk forspark generation.

202 Minimum safety clearances between the casing and ro-

tating parts are to be such as to prevent any friction with eachother.

In no case is the radial air gap between the impeller and thecasing to be less than 0.1 of the diameter of the impeller shaftin way of the bearing, but not less than 2 mm. It need not bemore than 13 mm.

203 The parts of the rotating body and of the casing are to bemade of materials which are recognised as being spark proof,and they are to have antistatic properties.

Furthermore, the installation on board of the ventilation unitsis to be such as to ensure the safe bonding to the hull of theunits themselves.

The following combinations of materials and clearances usedin way of the impeller and duct are considered to be non-spark-ing:

— impellers and or housing of non-metallic material, due re-gard being paid to the elimination of static electricity;

— impellers and housings of non-ferrous materials;— impellers of aluminium alloys or magnesium alloys and a

ferrous (including austenitic stainless steel) housing onwhich a ring of suitable thickness of non-ferrous materialsis fitted in way of the impeller, due regard being paid tostatic electricity and corrosion between ring and housing;

— impellers and housing of austenitic stainless steel;— any combination of ferrous (including austenitic stainless

steel) impellers and housing with not less than 13 mm tipdesign clearance.

204 Any combination of an aluminium or magnesium alloyfixed or rotating component and a ferrous fixed or rotatingcomponent, regardless of tip clearance, is considered a spark-ing hazard and is not to be used in these places.

205 Spare parts are to be carried for each type of fan referredto in this section. Normally one motor and one impeller is re-quired carried for each type of fan used in gas dangerous spac-es.

A 300 Ventilation of cargo handling spaces

301 Cargo handling spaces are pump rooms, compressorrooms and other enclosed spaces which contain cargo handlingequipment and similar spaces in which work is performed onthe cargo.

302 A permanent mechanical ventilation system is to be in-stalled capable of circulating sufficient air to give at least 30 airchanges per hour. Extraction from above and below floorplates is to be possible, with the following arrangement of ex-haust trunking:

— in the pump room bilges just above the transverse floorplates or bottom longitudinals, so that air can flow over thetop from adjacent spaces.

303 The exhaust outlets are to discharge upwards and are tobe situated at least 4 m above tank deck and at least 10 m in thehorizontal direction from ventilation inlets to the accommoda-tion and other gas safe spaces.

A 400 Ventilation of spaces not normally entered

401 Spaces not normally entered are cofferdams, double bot-toms, duct keels, pipe tunnels, spaces containing cargo tanksand other spaces where cargo may accumulate (water ballasttanks not included).

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402 All spaces mentioned in 401 are to be gasfreeable. Ifnecessary ducting is to be fitted in order to ensure efficient gas-freeing.

403 A mechanical ventilation system (permanent or porta-ble) is to be provided, capable of circulating sufficient air to thecompartments concerned. The capacity of the ventilation sys-tem is normally to give at least 8 air changes per hour.

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SECTION 11 FIRE PROTECTION AND EXTINCTION

A. Fire Protection

A 100 Construction101 In lieu of SOLAS Ch. II-2/9.2.3 and in addition to com-plying with the specific provisions for fire integrity of bulk-heads and deck mentioned elsewhere in this chapter, theminimum fire integrity of bulkheads and decks are to be as pre-scribed in SOLAS Ch. II-2/9.2.4.

102 For ships intended to carry products which are "non-flammable" (entry "no" in the column for fire protection in Ap-pendix A), and for ships intended to carry flammable productswith flash point above 60°C the requirements to constructionalfire protection in SOLAS Reg. II-2/9.2.3 apply.

103 Exterior boundaries of superstructures and deck- housesenclosing accommodation and service spaces and includingany overhanging decks which support such accommodation,are to be additionally protected against heat for the whole ofthe portions which face cargo area, and for 3 m aft of the frontboundary, by insulation to class A-60 standard.

104 Bulkheads between cargo pump rooms, including theirtrunks, and machinery spaces are to be class A, and are to haveno penetrations which are less than class A-0 or equivalent inall respects, other than the cargo pump shaft glands and similarglanded penetrations.

105 Bulkheads and decks forming divisions separating ma-chinery spaces and cargo pump rooms, including their trunks,respectively, from the accommodation and service spaces, areto be of A-60 class. Such bulkheads and decks and any bound-aries of machinery spaces and cargo pump rooms are not to bepierced for windows or port lights. These requirements, how-ever, do not preclude the installation of permanent, approvedgastight lighting enclosures for illuminating the pump rooms,provided that they are of adequate strength and maintain the in-tegrity and gas tightness of the bulkhead as class A.

106 Skylights to machinery spaces and cargo pump roomsare to comply with the provisions of 103 as regards windowsand portlights, and, in addition, are to be so arranged as to becapable of being easily closed from outside the spaces whichthey serve.

107 Paints, varnishes and other finishes used on exposed in-terior surfaces, are not to represent an undue fire hazard.

A 200 Accommodation, service and control spaces

201 All materials used in bulkheads, ceiling against steel, in-sulation etc. are to be of non-combustible type. Furning stripsetc. for bulkheads and ceiling are also to be of non-combustiblematerials.

202 The framing, including grounds, and the joint pieces ofbulkheads, linings, ceilings and draught stops, if fitted, are tobe of non-combustible material.

203 Corridor bulkheads, including doors, are to be of class Aor B divisions extending from deck to deck. Where continuousB class ceilings and/or linings are fitted on both sides of thebulkhead, the bulkhead may terminate at the continuous ceil-ing or lining. Doors of cabins and public spaces in such bulk-heads may have louvre in the lower half.

204 Air spaces enclosed behind ceilings, panellings or lin-ings, are to be divided by close-fitting draught stops spaced notmore than 14 m apart.

205 Control stations are to be separated from adjacent en-closed spaces by means of class A bulkheads and decks. Theinsulation of these control station boundaries will be consid-

ered in each case, with due regard to the risk of fire in adjacentspaces.

206 Stairways which penetrate only a single deck, are to beprotected at least at one level by self-closing doors so as to lim-it the rapid spread of fire from one deck to another. Stairwayswhich penetrate more than a single deck, are to be protected byself-closing steel doors at all levels. Self-closing doors are notto be fitted with holdback hooks. However, holdback arrange-ments fitted with remote release fittings of the fail-safe typemay be utilised.

207 Lift trunks in machinery spaces and accommodation areto be of steel and are to be provided with self-closing steeldoors. Lift trunks, including doors, are to be insulated to classA-60. Any windows in lift trunk doors are to be fitted withdouble wired glass, each glass at least 6 mm in thickness.

208 Ducts provided for ventilation of machinery spaces, arein general not to pass through accommodation or service spac-es.

Exemptions from this requirement may be permitted providedthat:

— the ducts are constructed of steel and are insulated to classA-60, or

— the ducts are constructed of steel and are fitted with an au-tomatic fire damper close to the boundary penetrated, andare insulated to class A-60 from the machinery space to apoint at least 5 m beyond the fire damper.

209 Ducts provided for ventilation of accommodation orservice spaces, are in general not to pass through machineryspaces. Exemptions from this requirement may be permitted,provided that ducts are constructed of steel and an automaticfire damper is fitted close to the boundary penetrated.

A 300 Firefighter’s outfit

301 Ships carrying toxic or and flammable products, are tohave onboard sufficient, but not less than 4 complete sets offirefighter’s outfit. For description of outfit see Ch.3 of FireSafety Systems Code as defined in Pt.4 Ch.10.

302 Ships above 1200 gross tonnage are to have onboard aspecial compressor for providing an adequate supply of breath-ing air.

B. Fire Extinguishing

B 100 Fire extinguishing in cargo area

101 Suitable fire extinguishing equipment for all productscarried is to be provided. Fire extinguishing media consideredto be suitable for certain products, are listed for information inthe List of Cargoes.

B 200 Deck fire extinguishing system in cargo area

201 All ships with the class notation Tanker for Chemi-cals or Tanker for C for dedicated chemical cargoes, exceptthose engaged solely in the transport of non-flammable prod-ucts, are to be fitted with a fixed deck foam fire-extinguishingsystem in accordance with the following requirements. Shipswhich are dedicated to the carriage of specific cargoes may,however, be protected by alternative provisions to the satisfac-tion of the Society when they are equally effective for the prod-ucts concerned as the deck foam system required for thegenerality of flammable cargoes.

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Guidance note:The term «ships which are dedicated to the carriage of specificcargoes» means ships which are dedicated to the carriage of a re-stricted number of cargoes.


202 For ships intended to carry flammable products withflash point exceeding 60°C the requirements as specified foroil tankers in Ch.3 Sec.7 A100 should be applied in lieu theregulations of this section.

203 Only one type of foam concentrate is to be supplied, andit is to be effective for the maximum possible number of car-goes intended to be carried. For other cargoes for which foamis not effective or is incompatible, additional arrangements tothe satisfaction of the Society are to be provided. Basic proteinfoams should not be used.

204 The arrangements for providing foam are to be capableof delivering foam to the entire cargo tank area as well as intoany cargo tank, the deck of which is assumed to be ruptured.

205 The deck foam system is to be capable of simple andrapid operation. The main control station for the system is tobe suitably located outside of the cargo tank area, adjacent tothe accommodation spaces and readily accessible and operablein the event of fires in the areas protected.

206 The rate of supply of foam solution is to be not less thanthe greater of the following:

a) 2 l/m2 minute of the cargo deck area, where cargo deckarea means the maximum breadth of the ship times the to-tal longitudinal extent of the cargo tank spaces,

b) 20 l/m2 minute of the horizontal sectional area of the sin-gle tank having the largest such area,

c) 10 l/m2 minute of the area protected by the largest moni-tor, such area being entirely forward of the monitor, butnot less than 1250 l/minute. For ships of less than 4000tons deadweight, the minimum capacity of the monitor isto be to the satisfaction of the Society.

The foam concentrate is to be of an approved type, and deliv-ered with product certificate for the foam on board the vesselincluding a chemical analysis of the foam.

207 Sufficient foam concentrate is to be supplied to ensure atleast 30 minutes of foam generation when using solution ratesstipulated in 206 (a), (b) and (c), whichever is the greater.

208 Foam from the fixed foam system is to be supplied bymeans of monitors and foam applicators. At least 50% of thefoam rate required in 206 (a) or (b) is to be delivered from eachmonitor. The capacity of any monitor is to be at least 10 l/minute of foam solution per square metre of deck area protect-ed by that monitor, such area being entirely forward of themonitor. Such capacity is to be not less than 1250 l/minute. Forships of less than 4000 tons deadweight, the minimum capacityof the monitor is to be to the satisfaction of the Society.

209 The distance from the monitor to the farthest extremityof the protected area forward of that monitor is to be not morethan 75% of the monitor throw in still air conditions.

210 A monitor and hose connection for a foam applicator areto be situated both port and starboard at the poop front or ac-commodation spaces facing the cargo tanks.

211 Applicators are to be provided for flexibility of actionduring fire-fighting operations and to cover areas screenedfrom the monitors. The capacity of any applicator is to be notless than 400 l/minute and the applicator throw in still air con-

ditions is to be not less than 15 m.

The number of foam applicators provided is to be not less thanfour. The number and disposition of foam main outlets are tobe such that foam from at least two applicators can be directedto any part of the cargo tank deck area.

212 Valves are to be provided in the foam main, and in thefire main where this is an integral part of the deck foam system,immediately forward of any monitor position to isolate dam-aged sections of those mains.

213 Operation of a deck foam system at its required output isto permit the simultaneous use of the minimum requirednumber of jets of water at the required pressure from the firemain.

214 Suitable portable fire extinguishing equipment for theproducts to be carried is to be provided and kept in good oper-ating order.

215 All sources of ignition are to be excluded from spaceswhere flammable vapours may be present.

216 When the alternative deck fire extinguishing system per-mitted under 201 is a fixed dry chemical powder fire extin-guishing system, the system is to comply with Ch.5 Sec.11B300.

B 300 Fire extinguishing in cargo pump rooms

301 Ships with the class notation Tanker for Chemicalsor Tanker for C for dedicated chemical cargoes, except thoseengaged solely in the carriage of sodium hydroxide solution(caustic soda, caustic potash and phosphoric acid), are to beequipped with a fixed gas fire-extinguishing system in the car-go pump room. The fixed gas fire-extinguishing system maybe a carbon dioxide system as specified in 302 to 304 below.

302 A cargo pump room carbon dioxide fire extinguishingsystem is to comply with the requirements in Pt.4 Ch.10.

303 A notice is to be exhibited at the controls stating that thesystem is only to be used for fire extinguishing and not inertingpurposes, due to the ignition hazard.

304 The amount of gas carried is to be sufficient to providea quantity of free gas equal to 45% of the gross volume of thecargo pump room in all cases.

305 A notice is to be exhibited at the controls stating that thesystem in only to be used for fire extinguishing and not inertingpurposes due to the electrostatic ignition hazard.

306 Cargo pump rooms of ships which are dedicated to thecarriage of specific cargoes are to be protected to the satisfac-tion of the Society.

Guidance note:The term “ships which are dedicated to the carriage of specificcargoes”, means ships which are dedicated to the carriage of a re-stricted number of cargoes.


307 A fire-extinguishing system consisting of either a fixedpressure water spray system or a high expansion foam systemcould be provided for the cargo pump room if it can be ade-quately demonstrated to the Society that cargoes will be car-ried which are not suited to extinguishment by carbon dioxideor halogenated hydrocarbons. The appendix to the classifica-tion certificate will reflect this conditional requirement.

308 Steam smothering systems are not accepted for cargopump rooms.

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SECTION 12 ELECTRICAL INSTALLATIONS

A. General

A 100 Application101 The requirements in this chapter are additional to thosegiven in Pt.4 Ch.8 and apply to tankers with the class notationsTanker for Chemicals. The requirements may be madewholly or partly valid also for tankers for dedicated chemicalcargoes (Tanker for C) in some cases.

102 Tankers exclusively built to carry cargoes with flashpoint above 60°C will be considered in each case.

B. Electrical Installations in Cargo Area and Adjacent to this Area

B 100 General101 Electrical equipment and wiring are in general not to beinstalled in hazardous areas. However, in spaces and areas list-ed in 200 to 800 installations may be accepted provided addi-tional requirements as specified are complied with.

102 Instrumentation, monitoring, control and communica-tion are to be intrinsically safe-type equipment.

Guidance note:In applications where this is technically impracticable, for exam-ple, solenoid valves, gas detection sensors, the following types ofprotection may be considered in place of Category 'ib' apparatuswhen approved by an Appropriate Authority: pressurised type 'p';flameproof type 'd'; increased-safety type 'e'.


103 Additional requirements may be given for special car-goes according to Sec.15 and Appendix A.

104 The materials used for electrical equipment are not to re-act dangerously with the cargo liquids or gases to which theymay be exposed, and are to be corrosion resistant against suchliquids or gases.

B 200 Cargo tanksThe following installations are accepted:

201 Intrinsically safe-type 'ia' and associated wiring.

B 300 Cofferdams and other under deck spaces adja-cent to cargo tanksThe following installations are accepted:


302 Electric depth-sounding devices, log devices and im-pressed current cathodic protection systems (for external hullprotection only).

Such equipment are to be of gas-tight construction or to behoused in a gas-tight enclosure. The cables are to be installedin steel pipes with gas-tight joints up to the upper deck.

Corrosion resistant pipes, providing adequate mechanical pro-tection, are to be used in compartments which may be filledwith seawater. (e.g. permanent ballast tanks).

The thickness of the pipes is to be as for overflow and soundingpipes through ballast or fuel tanks in accordance with Pt.4 Ch.6Sec.6 A.

303 In spaces provided with mechanical ventilation of atleast 8 changes of air per hour, the following requirements ap-ply:

— certified safe-type luminaires of pressurised or flameprooftype may be installed. The luminaires to be arranged in ac-cordance with Pt.4 Ch.8 Sec.11. A signboard to be fitted ateach entrance. See C102

— lighting fittings of air driven certified safe-type— general alarm audible and/or optical indicator of certified

safe flameproof type may exceptionally be allowed.

B 400 Cargo pump rooms

The following installations are accepted:


402 Electrical devices as described in 302 above, installed inaccordance with that subsection.

403 Certified safe-type luminaires of the pressurised orflameproof type. The installation to be arranged as specified in303.

404 Lighting fittings of air driven certified safe-type.

405 General alarm, CO2 alarm, gas detectors, CCTV cameraand telephone call device of certified safe flameproof type maybe allowed.

406 Where it is necessary for cables other than intrinsicallysafe circuits and those supplying lighting in the pump room topass through cargo pump room, they are to be installed in steelpipes with gas-tight joints. The thickness of the pipes to be inaccordance with Pt.4 Ch.6 Sec.6 A.

Guidance note:The term 'cable pipe' is here used to denote not only circularpipes, but also other closed ducts of non-circular shape.


B 500 Enclosed or semi-enclosed spaces above cargo tanks


501 For spaces immediately above cargo tanks, for spaceshaving bulkheads above and in line with cargo tank bulkheads,and compartments for cargo gear, the following requirementsapply:

— intrinsically safe-type 'ia' or 'ib' and associated wiring— certified safe-type luminaires of pressurised or flameproof

type. The installation to be arranged as specified in 303— through runs of cables.

Guidance note:Spaces having a 'corner-to-corner' connection with the cargotank, may be exempted from this requirement. The installationwill be considered in each case.


502 For spaces above cargo tanks not containing a source ofhazard and which are separated from the cargo tanks by coffer-dams, having openings in to any hazardous area, the electricalinstallation is to comply with the requirements for the space orarea into which the opening leads.

B 600 Hazardous areas on the open deck


601 Definitions of gas dangerous zones are given in Sec.1 B.The following equipment will normally be accepted in thesezones on the open deck:

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— certified safe-type equipment as referred to in Pt.4 Ch.8Sec.2 B ('d', 'e', 'ia', 'ib', 'p'). Such equipment is to be suit-ably protected for use on open deck. For instrumentation,monitoring, control and communication circuits, see 102

— through runs of cables.

B 700 Other spaces in the cargo area and in enclosed or semi-enclosed spaces with direct access to the cargo areaThis item covers 'gas-safe' spaces as specified in Sec.1 B114.


701 The same type of equipment as in similar rooms on drycargo ships are normally accepted (See Pt.4 Ch.8 Sec.2 TableC1), but with additional requirements as specified in 702 to705.

702 Electrical equipment, other than certified safe-type, in-stalled in spaces which have been made non-hazardous areasby the ventilating system, to be automatically disconnectedupon loss of overpressure.

703 When shaft glands are installed in bulkheads or decksbetween hazardous areas and gas-safe spaces (overpressureventilated), the lighting fittings and switches in these gas-safespaces are to be of certified safe flameproof type.

Other electrical equipment is to be of certified safe-type, or isto be automatically disconnected upon loss of ventilation in thespace.

A part of the lighting installation may be accepted in a non-flameproof construction if de-energised upon of loss of over-pressure.

Guidance note:Above mentioned requirement does not apply to main engineroom.


704 If the switch or fusegear for interlocking systems ac-cording to 702 are located in the room concerned, these com-ponents are to be of certified safe flameproof type, or thecircuits for this equipment is to be intrinsically safe-type, Cat-egory Ex(ia) or Ex(ib).

705 The ventilation of gas-safe spaces in the cargo area is tocomply with the requirements in Sec.10. In addition it is re-quired that the 15 minutes prepurging period is to be ensuredby automatic interlocking when the gas-safe space is locatedbelow the upper deck.

B 800 Tweendeck spaces801 Certified safe-type luminaires of pressurised or flame-proof type.

802 Any electrical equipment, additional to the luminairesreferred to in 801, may be installed in tweendeck spaces abovecargo tanks provided that:

— the compartment is suitably mechanically ventilated,— the compartment having access solely from a gas-safe

space or zone on the deck above,— the floor of the compartment is separated from the cargo

tanks by a cofferdam or a space as referred to in 501,— the boundaries of the compartment are oil-tight and gas-

tight with respect to the cofferdam and the tweendeckspace.

C. Signboards

C 100 General101 Where electric lighting is provided for spaces in hazard-ous areas, a signboard at least 200 x 300 mm is to be fitted ateach entrance to such spaces with text:

BEFORE A LIGHTING FITTING IS OPENED

ITS SUPPLY CIRCUIT ISTO BE DISCONNECTED

Alternatively a signboard with the same text can be fitted ateach individual lighting fitting.

102 Where electric lighting is provided in spaces where theventilation must be in operation before the electric power isconnected, a signboard at least 200 x 300 mm is to be fitted ateach entrance, and with a smaller signboard at the switch foreach lighting circuit, with text:

BEFORE THE LIGHTING IS TURNED ON

THE VENTILATION MUST BEIN OPERATION

103 Where socket-outlets are installed in cargo area or adja-cent area, a signboard is to be fitted at each socket-outlet withtext:

PORTABLE ELECTRICAL EQUIPMENT SUPPLIEDBY FLEXIBLE CABLES

IS NOT TO BE USED IN AREAS WHERE THERE ISGAS DANGER

Alternatively signboards of size approximately 600 x 400 mm,with letters of height approximately 30 mm, can be fitted ateach end of the tank deck.

104 Where socket-outlets for welding apparatus are installedin areas adjacent cargo area, the socket outlet is to be providedwith a signboard with text:

WELDING APPARATUS NOT TO BE USED UNLESSTHE WORKING SPACE

AND ADJACENT SPACES ARE GAS-FREE.

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SECTION 13 INSTRUMENTATION AND AUTOMATION

A. General Requirements

A 100 General101 For instrumentation and automation, including compu-ter based control and monitoring, the requirements of in thischapter are additional to those given in Pt.4 Ch.9.

The control and monitoring systems shall be certified accord-ing to Pt.4 Ch.9 for the following:

— cargo tank level measurement system— cargo tank overflow protection system— cargo valves and pumps control and monitoring system— flammable gas detection system (permanent system only)— inert gas control and monitoring system.

102 Remote reading systems for cargo temperature and pres-sure are not to allow the cargo or vapour to reach gas safe spac-es. Direct pipe connections will not be accepted

103 If the loading and unloading of the ship is performed bymeans of remotely controlled valves and pumps, all controlsand indicators associated with a given cargo tank are to be con-centrated in one control position.

104 Ships arranged with cargo pump room, carrying chemi-cals with flashpoint below 60°C, are to comply with the re-quirements for pump room safety as given in Ch.3 Sec.6 A303and Ch.3 Sec.9 B102, B103 and F101.

B. Alarm, Indicating and Recording Systems

B 100 Cargo tank level gauging 101 By «gauging device» is meant an arrangement for deter-mining the liquid level of cargo in tanks. Consideration of thehazard and physical properties of each cargo will give the basefor selecting one of the following types:

— open, type b1A method which makes use of an opening in the tank anddirectly exposes the operator to the cargo or its vapours.Examples of this type are ullage openings and gaugehatches.

— restricted, type b2A device which penetrates the tank and which, when inuse, permits a limited quantity of cargo vapour or liquid tobe expelled to the atmosphere. When not in use, the deviceis completely closed. Examples of this type are rotarytube, fixed tube, slip tube and sounding pipe.

— closed, type b3A permanently installed device which penetrates the tank,but which is part of a closed system which keeps the cargocontainment system completely sealed off from the atmos-phere. Examples of this type are sight glasses, pressurecells, float-tape systems, electronic or magnetic probe.

— indirect, type b4A device which does not penetrate the tank shell or is in-dependent of the tank and which makes use of an indirectmeasurement for determining the amount of cargo. Exam-ples are weighing of cargo, pipe flow meter.

102 Each cargo tank is to be provided with at least one liquidlevel gauging device. Type of gauging devices required for theindividual cargoes are shown in the List of Cargoes.

103 If a closed gauging device is not mounted directly on the

tank, it is to be provided with shut-off valves situated as closeas possible to the tank.

B 200 Overflow control 201 Arrangements as described below are to be provided ac-cording to the List of Cargoes.

202 Type f1. The cargo tank is to be fitted with a visual andaudible high level alarm.

This is to be able to be function tested from the outside of thetank and is also to be independent of the level gauging devicerequired in 102 and the high-high level alarm required in 203.

203 Type f2. In addition to the high level alarm as describedin 202, a high-high level alarm is to be fitted. The high-highlevel alarm is to be independent of the high level alarm and thelevel gauging device.

B 300 Vapour detection 301 Ships carrying toxic and/or flammable cargoes are to beequipped with at least two instruments designed and calibratedfor testing for the specific vapours in question. If such instru-ments are not capable of testing for both toxic concentrationsand flammable concentrations, then two separate sets of instru-ments are to be provided.

302 Vapour detection instruments may be portable or fixed.If a fixed system is installed, at least one portable instrument isto be provided.

303 In the case of portable instruments being used, provi-sions are to be made to facilitate easy measurements, andwhere necessary fitting of guide tubes to enable gas samplinghose to be easily lead to the space to be tested.

B 400 Cargo temperature measurement401 Means for measuring the cargo temperature are to beprovided. Tanks intended for carriage of cargoes requiring car-go level gauging systems type b2,b3 or b4, are to be providedwith a temperature measuring system providing a gas segrega-tion equivalent to the gauging systems required.

B 500 Hold leakage alarm 501 Hold spaces containing independent cargo tanks are tobe provided with alarm for leakage of liquids into the holds.

B 600 Computer (PLC) based systems for cargo han-dling601 Local control of cargo handling systems independent ofcomputer controlled systems will be required.

B 700 Centralised cargo control701 Ships having their cargo and ballast systems built andequipped, surveyed and tested in accordance with the require-ments in Pt.6 Ch.6 may be given the additional class notationCCO.

B 800 Gas Detection in Cargo Pump Room for Flamma-ble Liquids with Flashpoint not exceeding 60°C801 Sequential sampling is acceptable as long as it is dedi-cated for the pump room only, including exhaust ducts, and thesampling time is reasonably short.

Guidance note:Suitable positions may be the exhaust ventilation duct and lowerparts of the pump room above the floor plates.


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SECTION 14 TESTS AFTER INSTALLATION

A. General

A 100 Application

101 All systems covered by this chapter are to be tested inoperation. As far as practicable, the tests are to be performed at

the building yard.

102 Remaining function tests, which cannot be carried outwithout cargo on board, may be carried out in connection withthe first cargo loading and transport with a representative car-go.

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SECTION 15 ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES


A 100 Application

101 The provisions of this section are applicable where spe-cific reference is made in the List of Cargoes.

The requirements are mainly of constructional nature or of anature affecting both construction and operation. It is advisedthat specific operational requirements for some of the productsare given in the International Code for the Construction andEquipment of ships carrying Dangerous Chemicals in Bulk. Itis assumed that the operational requirements are complied withduring operation of the ship.

A 200 Materials

201 Materials of construction for cargo tanks, and associatedpipe-lines, valves, fittings and other items of equipment, whichare not to be used for certain products, are specified in the Listof Cargoes.

202 Copper, copper alloys, zinc, aluminium, galvanised steeland mercury should not be used as materials of construction fortanks, pipelines, valves, fittings and other items of equipmentthat may come in contact with cargo liquid or vapour.

203 Copper, copper alloys, zinc or galvanised steel shouldnot be used as materials of construction for tanks, pipelines,valves, fittings and other items of equipment that may come incontact with cargo liquid or vapour.

204 Aluminium, magnesium, zinc, galvanised steel and lith-ium should not be used as materials of construction for tanks,pipelines, valves, fittings and other items of equipment thatmay come in contact with cargo liquid or vapour.

205 Copper and copper bearing alloys should not be used asmaterials of construction for tanks, pipelines, valves, fittingsand other items of equipment that may come in contact withcargo liquid or vapour.

206 Aluminium or copper or alloys of either should not beused as materials of construction for tanks, pipelines, valves,fittings and other items of equipment that may come in contactwith cargo liquid or vapour.

207 Aluminium, stainless steel or steel covered with a suita-ble protective lining or coating should be used as materials ofconstruction for tanks, pipelines, valves, fittings and otheritems of equipment that may come in contact with cargo liquidor vapour.

208 The following materials of construction should be used:

a) For concentrations of 98% or greater, aluminium, or stain-less steel.

b) For concentrations of less than 98%, special acid-resistantstainless steel.

209 Copper, silver, mercury and magnesium or otheracetylides-forming metals and their alloys should not be usedas materials of construction for tanks, pipelines, valves, fittingsand other items of equipment that may come in contact withcargo liquid or vapour.

210 Copper and copper bearing alloys with greater than 1%copper should not be used as materials of construction fortanks, pipelines, valves, fittings and other items of equipmentthat may come in contact with cargo liquid or vapour.

211 Cargo tanks are to be made from solid stainless steel.

A 300 Segregation of cargo from bunker tanks301 Cargoes with reference to this item (see List of Cargoes)are not to be carried in tanks adjacent to bunker tanks.

A 400 Separate piping systems401 Cargoes with reference to this item (see List of Cargoes)are to be carried in tanks with separate piping systems and withvent systems separate from tanks containing other products.

A 500 Cargo contamination501 Alkaline or acidic materials, such as caustic soda or sul-phuric acid, should not be allowed to contaminate this cargo.

502 Water should not be allowed to contaminate this cargo.In addition the following provisions apply:

— Air inlets to pressure/vacuum relief valves of tanks con-taining this cargo should be situated at least 2 m above theweather deck.

— Water or steam should not be used as the heat transfer me-dia in a cargo temperature control system.

— This cargo should not be carried in tanks adjacent to per-manent ballast or water tanks unless the tanks are emptyand dry.

— This cargo should not be carried in tanks adjacent to sloptanks, cargo tanks containing ballast or slops or other car-goes containing water which may react in a dangerousmanner. Pumps, pipes or vent lines serving such tanksshould be separate from similar equipment serving tankscontaining this cargo. Pipelines from slop tanks or ballastlines should not pass through tanks containing this cargounless in a tunnel.

A 600 Inert gas601 The cargo tank vapour space and associated piping sys-tems are to be filled and maintained with a gas (inert) whichwill not support combustion and which will not react with thecargo.

602 An adequate supply of inert gas for use in filling and dis-charging is to be carried or is to be manufactured on board un-less a shore supply is available.

In addition, sufficient inert gas is to be available on the ship tocompensate for normal losses during transportation.

603 The inert gas system on board the ship is to be able tomaintain at least 0.07 bar pressure within the containment sys-tem at all times. In addition, the inert gas system shall not raisethe cargo tank pressure to more than the tank's relief valve set-ting.

604 Means are to be provided for monitoring ullage spacescontaining a gas blanket to ensure that the correct atmosphereis being maintained.

605 Inerting arrangements where used with flammable car-goes are to be such as to minimise the creation of static elec-tricity during the admission of the inerting media.

A 700 Moisture control (Drying)701 The cargo tank vapour space and associated piping sys-tems are to be filled and maintained with a moisture free gas orvapour which will prevent the access of water or water vapourto the cargo. For the purpose of this paragraph, “moisture free”gas or vapour is that which has a dewpoint of -40°C or belowat atmospheric pressure.

702 Where dry nitrogen is used as the medium, similar ar-rangements for supply of the drying medium is to be made as

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required in 602, 603 and 605 above. Where drying agents areused as the drying medium on all air inlets to the tank, suffi-cient media is to be carried for the duration of the voyage tak-ing into consideration the diurnal temperature range and theexpected humidity.

A 800 Cargo pumps in tank

801 Cargo pumps are to be located in the cargo tank or thecargo pump room is to be located on the weather deck level.Special consideration by the Society is required for other loca-tions of the pump room.

A 900 Cargoes not to be exposed to excessive heat

901 Because of their sensitive nature such cargoes are not tobe carried in uninsulated deck tanks.

A 1000 Cargoes requiring heating

1001 Such cargoes will only be permitted in tanks with heat-ing system. The ship's shell plating is not to be boundary ofsuch tanks.

A 1100 Cargo pump temperature sensors

1101 Temperature sensors should be used to monitor the car-go pump temperature to detect overheating due to pump fail-ure.

A 1200 Increased ventilation of cargo handling spaces

1201 The ventilation system as described in Sec.10 A300, isto have a capacity of at least 45 air changes per hour. The ven-tilation exhaust outlets are to be situated at least 10 m fromventilation inlets to the accommodation and other gas safespaces and at least 4 m above the tank deck.

B. Additional Requirements for Certain Groups of Cargoes

B 100 Acids

101 No electrical equipment or other sources of ignition arepermitted in enclosed spaces adjacent to cargo tanks.

102 The ship's shell plating is not to form any boundaries oftanks containing mineral acids.

103 Materials of construction of the tanks are to be approvedin each case.

104 Unless constructed completely of corrosion-resistantmaterials or fitted with an approved lining, the plating thick-ness is to take into account the corrosiveness of the cargo.

105 Flanges of the loading and discharge manifold connec-tions are to be provided with shields which may be portable toguard against the danger of the cargo being sprayed. Drip traysare to be provided to guard against leakage on to the deck.

106 Means for detecting leakage of cargo into adjacent spac-es are to be provided.

107 Bilge pumping arrangements and drainage arrange-ments in pump rooms are to be of corrosion resistant materials.

B 200 Cargoes which have a vapour pressure greater than 1.015 bar at 37.8°C

201 Unless the tank is designed to withstand the vapour pres-sure of the cargo, provisions are to be made to maintain thetemperature of the cargo below its boiling point at atmosphericpressure.

202 Valved connections for returning gas ashore duringloading are to be provided.

203 Each tank is to be provided with a pressure gauge indi-cating the pressure in the vapour space above the cargo.

204 Where the cargo is being cooled, each tank is to be pro-vided with thermometers at the top and bottom of the tank.

C. Additional Requirements for Certain Chemicals

C 100 Ammonium nitrate solution, 93% or less101 The ammonium nitrate solution should contain at least7% by weight of water. The acidity (pH) of the cargo when di-luted with ten parts of water to one part of cargo by weightshould be between 5.0 and 7.0. The solution should not containmore than 10 ppm chloride ions, 10 ppm ferric ions, and shouldbe free of other contaminants.

102 Tanks and equipment for ammonium nitrate solution areto be independent of tanks and equipment containing other car-goes or combustible products. Equipment which may in serv-ice, or when defective, release combustible products into thecargo, e.g. lubricants, should not be used. Tanks should not beused for seawater ballast.

103 The temperature of the heat exchanging medium in thetank heating system is not to exceed 160°C. The heating sys-tem is to be provided with a control system to keep the cargoat a bulk mean temperature of 140°C. High-temperature alarmsat 145°C and 150°C and a low-temperature alarm at 125°C isto be provided. Where the temperature of the heat exchangingmedium exceeds 160°C an alarm should also be given. Tem-perature alarms and controls are to be located on the navigatingbridge.

104 A fixed installation should be provided to inject ammo-nia gas into the cargo. Controls for this system should be locat-ed on the navigating bridge. For this purpose, 300 kg ofammonia per 1000 tonnes of ammonium nitrate solutionshould be available on board.

105 Cargo pumps should be of the centrifugal deepwell typeor of the centrifugal type with water flushed seals.

106 Vent piping should be fitted with approved weather-hoods to prevent clogging. Such weatherhoods should be ac-cessible for inspection and cleaning.

C 200 Carbon disulphide201 Carbon disulphide may be carried either under a waterpad as specified in 202 to 211, or under a suitable inert gas padas specified in 212 to 226.

202 Means are to be provided to maintain a water pad in thecargo tank during loading, unloading and during transit. In ad-dition, means are to be provided to maintain an inert gas pad inthe ullage space during transit.

203 All openings are to be in the top of the tank above thedeck.

204 Loading lines are to terminate near the bottom of thetank.

205 A standard ullage opening is to be provided for emer-gency sounding.

206 Cargo piping and vent lines are to be independent of pip-ing and vent lines used for other cargoes.

207 Pumps may be used for discharging cargo provided theyare of the deepwell or submersible types. The means of drivinga deepwell pump should not present a source of ignition forcarbon disulphide and should not employ equipment that mayexceed a temperature of 80°C. Submersible pumps should beelectrically interlocked so that the motor is de-energised beforeit could present a source of ignition to the cargo vapour space.

208 If a cargo discharge pump is used, it is to be insertedthrough a cylindrical well extending from the tank top to apoint near the tank bottom. A pad of water should be formed in

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this well before attempting pump removal unless the tank hasbeen certified as gas-free.

209 Water or inert gas displacement may be used for dis-charging cargo provided the cargo system is designed for theexpected pressure and temperature.

210 Safety relief valves are to be of stainless steel construc-tion.

211 Because of its low ignition temperature and close clear-ances required to arrest its flame propagation, carbon disul-phide requires special safeguard for electrical equipmentwhich will be considered in each case.

212 Carbon disulphide is to be carried in independent tankswith a design pressure of not less than 0.6 bar gauge.

213 All openings are to be located on the top of the tank,above the deck.

214 Gaskets used in the containment system are to be of amaterial that does not react with, or dissolve in, carbon disul-phide.

215 Threaded joints are not to be permitted in the cargo con-tainment system, including the vapour lines.

216 Prior to loading, the tank(s) shall be inerted with suitableinert gas until the oxygen level is 2% by volume or lower.Means are to be provided to automatically maintain a positivepressure in the tank using suitable inert gas during loading,transport and discharge. The system is to be able to maintainthis positive pressure between 0.1 and 0.2 bar gauge, and is tobe remotely monitored and fitted with over-pressure or under-pressure alarms.

217 Hold spaces surrounding an independent tank carryingcarbon disulphide are to be inerted by a suitable inert gas untilthe oxygen level is 2% or less. Means are to be provided tomonitor and maintain this condition throughout the voyage.Means are also to be provided to sample these spaces for car-bon disulphide vapour.

218 Carbon disulphide is to be loaded, transported and dis-charged in such a manner that venting to the atmosphere doesnot occur. If carbon disulphide vapour is returned to shore dur-ing loading or to the ship during discharge, the vapour returnsystem is to be independent of all other containment systems.

219 Carbon disulphide is to be discharged only by sub-merged deepwell pumps or by a suitable inert gas displace-ment. The submerged deepwell pumps are to be operated in away that prevents heat build-up in the pump. Each pump is alsoto be fitted with a temperature sensor in the housing with re-mote readout and alarm in the cargo control room. The alarmis to be set at 80°C. The pump is also to be fitted with an auto-matic shutdown device, to be activated if the tank pressure fallsbelow atmospheric pressure during the discharge.

220 Air is not to be allowed to enter the cargo tank, cargopump or lines while carbon disulphide is contained in the sys-tem.

221 No other cargo handling, tank cleaning or deballasting isto take place concurrent with loading or discharge of carbon di-sulphide.

222 A water spray system of sufficient capacity is to be pro-vided to blanket effectively the area surrounding the loadingmanifold, the exposed deck piping associated with the producthandling and the tank domes. The arrangement of piping andnozzles is to be such as to give an uniform distribution rate of10 l/m2/minute. Remote manual operation is to be arrangedsuch that remote starting of pumps supplying the water spraysystem and remote operation of any normally closed valves inthe system can be carried out from a suitable location outsidethe cargo area adjacent to the accommodation spaces and read-ily accessible and operable in the event of fire in the areas pro-tected. The water spray system is to be capable of both localand remote manual operation and the arrangement is to ensure

that any spilled cargo is washed away. Additionally, a waterhose with pressure to the nozzle, when atmospheric tempera-tures permit, is to be connected ready for immediate use duringloading and unloading operations.

223 The maximum allowable tank filling limits for each car-go tank are to be indicated for each loading temperature thatmay be applied and for the applicable maximum referencetemperature, on a list to be approved by the Society. A copy ofthe list is to be permanently kept on board by the master.

224 Zones on open deck, or semi-enclosed spaces on opendeck within 3 m of a tank outlet, gas or vapour outlet, cargopipe flange or cargo valve of a tank certified to carry carbon di-sulphide, is to comply with the electrical equipment require-ment specified for carbon disulphide in Appendix A. Also,within the specified zone, no other heat sources, like steam pip-ing with surface temperatures in excess of 80°C should be al-lowed.

225 Means are to be provided to ullage and sample the cargowithout opening the tank or disturbing the positive suitable in-ert gas blanket.

226 The product is to be transported only in accordance witha cargo handling plan approved by the Society. Cargo handlingplans are to show the entire cargo piping system. A copy of theapproved cargo handling plan is to be available on board.

Guidance note:When a ship carries carbon disulphide under the IMO ChemicalCode Certificate of Fitness, the Administration or delegated bodyissuing the certificate, will be required to include a reference tothe approved cargo handling plans in the certificate.


C 300 Diethyl ether301 Unless inerted, natural ventilation is to be provided forthe voids around the cargo tanks while the vessel is under way.If a mechanical ventilation system is installed, all blowers areto be of non-sparking construction. Mechanical ventilationequipment is not to be located in the void spaces surroundingthe cargo tanks.

302 Pressure relief valve settings are not to be less than 0.2bar.

303 Inert gas displacement may be used for discharging car-go from pressure vessel tanks provided the cargo system is de-signed for the expected pressure.

304 No electrical equipment except for approved lightingfixtures are to be installed in enclosed spaces adjacent to cargotanks. Lighting fixtures are to be approved for use in diethylether vapours. The installation of electrical equipment on theweather deck is to comply with the requirements of Sec.12.

305 In view of the fire hazard provisions are to be made toavoid any ignition source and/or heat generation in the cargoarea.

306 Pumps may be used for discharging cargo provided thatthey are of a type designed to avoid liquid pressure against theshaft gland or are of a submerged type and are suitable for usewith the cargo.

307 Provisions are to be made to maintain the inert gas padin the cargo tank during loading, unloading and during transit.

C 400 Hydrogen peroxide solutions of 60% but not over 70%401 Hydrogen peroxide solutions are to be carried in dedi-cated ships only and no other cargoes are to be carried.

402 Cargo tanks and associated equipment are to be eitherpure aluminium (99.5%) or solid stainless steel (304L, 316,316L or 316Ti), and passivated in accordance with approvedprocedures. Aluminium is not to be used for piping on deck.All nonmetallic materials of construction for the containment

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system neither to be attacked by hydrogen peroxide nor con-tribute to its decomposition.

403 Pump rooms are not to be used for cargo transfer opera-tions.

404 Cargo tanks are to be separated by cofferdams from oilfuel tanks or any other space containing flammable or combus-tible materials.

405 Temperature sensors are to be installed at the top andbottom of the tank. Remote temperature readouts and continu-ous monitoring shall be located on the navigating bridge. If thetemperature in the tanks rises above 35°C, visible and audiblealarms are to be activated on the navigating bridge.

406 Fixed oxygen monitors (or gas sampling lines) are to beprovided in void spaces adjacent to tanks to detect leakage ofthe cargo into these spaces. Remote readouts, continuous mon-itoring (if gas sampling lines are used, intermittent sampling issatisfactory) and visible and audible alarms similar to those forthe temperature sensors shall also be located on the navigatingbridge. The visible and audible alarms are to be activated if theoxygen monitors shall also be available as back-up systems.

407 As a safeguard against uncontrolled decomposition, acargo jettisoning system is to be installed to discharge the car-go overboard. The cargo should be jettisoned if the tempera-ture rise of the cargo exceeds a rate of 2°C per hour over a 5-hour period or when temperature in the tank exceeds 40°C.

408 Cargo tank venting system is to have pressure/ vacuumrelief valves for normal controlled venting, and rupture discsor a similar device for emergency venting, should tank pres-sure rise rapidly as a result of uncontrolled decomposition.Rupture discs shall be sized on the basis of tank design pres-sure, tank size and anticipated decomposition rate.

409 A fixed water-spray system shall be provided for dilut-ing and washing away any concentrated hydrogen peroxide so-lution spilled on deck. The areas covered by the water-sprayare to include the manifold and hose connections and the tanktops of those tanks designated for carrying hydrogen peroxidesolutions.

The minimum application rate shall satisfy the following crite-ria:

a) The product shall be diluted from the original concentra-tion to 35% by weight within 5 minutes of the spill.

b) The rate and estimated size of the spill shall be based uponmaximum anticipated loading and discharge rates, thetime required to stop flow of cargo in the event of tankoverfill or a piping or hose failure, and the time necessaryto begin application of dilution water with actuation at thecargo control location or on the navigating bridge.

C 500 Hydrogen peroxide solutions over 8% but not over 60%

501 Only those hydrogen peroxide solutions which have amaximum decomposition rate of 1.0% per year at 25°C are al-lowed to be carried.

502 The ship's shell plating is not to form any boundaries oftanks containing this product.

The design of cargo tanks is to be such as to provide minimuminternal tank structure, free drainage, no entrapment and easeof visual inspection.

503 Cargo tanks and associated equipment should be eitherpure aluminium (99.5%) or solid stainless steel of types suita-ble for use with hydrogen peroxide. Aluminium is not to beused for piping on deck. All non-metallic materials of con-struction for the containment system are neither to be attackedby hydrogen peroxide nor contribute to its decomposition.

504 Cargo tanks are to be separated by a cofferdam from fueloil tanks or any other space containing materials incompatible

with hydrogen peroxide.

505 Temperature sensors are to be installed at the top andbottom of the tank. Remote temperature readouts and continu-ous monitoring should be located on the navigating bridge. Ifthe temperature in the tank rises above 35°C, visible and audi-ble alarms are to be activated on the navigating bridge.

506 Fixed oxygen monitors (or gas sampling lines) are to beprovided in void spaces adjacent to tanks to detect leakage ofthe cargo into these spaces. The enhancement of flammabilityby oxygen enrichment should be recognized. Remote readouts,continuous monitoring (if gas sampling lines are used, inter-mittent sampling is satisfactory) and visible and audible alarmssimilar to those for the temperature sensors should also be lo-cated on the navigating bridge. The visible and audible alarmsshould activate if the oxygen concentrations in these void spac-es exceed 30% by volume. Two portable oxygen monitors arealso to be available as back-up systems.

507 As a safeguard against uncontrolled decomposition, acargo jettisoning system is to be installed to discharge the car-go overboard. The cargo should be jettisoned if the tempera-ture rise of the cargo exceeds a rate of 2°C per hour over a 5-hour period or when the temperature in the tank exceeds 40°C.

508 Cargo tank venting systems with filtration are to havepressure vacuum relief valves for normal controlled venting,and a device for emergency venting, should tank pressure riserapidly as a result of an uncontrolled decomposition rate.These venting systems are to be designed in such a manner thatthere is no introduction of sea water into the cargo tank evenunder heavy sea conditions. Emergency venting is to be sizedon the basis of tank design pressure and tank size.

509 A fixed water-spray system is to be provided for dilutingand washing away any concentrated solution spilled on deck.The areas covered by the water-spray should include the man-ifold and hose connections and the tank tops of those tanks des-ignated for the carriage of hydrogen peroxide solutions. Theminimum application rate should satisfy the following criteria:

a) The product is to be diluted from the original concentra-tion to 35% by weight within five minutes of the spill.

b) The rate and estimated size of the spill should be basedupon maximum anticipated loading and discharge rates,the time required to stop flow of cargo in the event of tankoverfill or a piping or hose failure, and the time necessaryto begin application of dilution water with actuation at thecargo control location or on the navigating bridge.

510 During transfer of hydrogen peroxide the related pipingsystem is to be separate from all other systems. Cargo hosesused for transfer of hydrogen peroxide transfer only.

C 600 Phosphorus, yellow or white

601 The cargo tanks are to be placed inboard from the ship'sside at a minimum distance of B/5 measured at the level of theload line.

602 Phosphorus is, at all time, to be loaded, carried and dis-charged under a water blanket of 760 mm minimum depth.During discharge operations it is to be arranged that water oc-cupies the volume of phosphorus discharged.

603 Tanks are to be designed so as to minimize the interfa-cial area between liquid phosphorus and its water blanket.

604 A minimum ullage space of 1% is to be maintainedabove the water blanket and is to be filled with inert gas ifphosphorus is carried in the liquid form.

605 All openings are to be at the top of cargo tanks and fit-tings and joints attached thereto are to be of materials resistantto phosphorus pentoxide.

606 Phosphorus is to be loaded at a temperature not exceed-ing 60°C.

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607 Tank heating arrangements are to be external to tanksand an automatic temperature control system for the cargo is tobe fitted in order to ensure that the temperature of the phospho-rus does not exceed 60°C.

608 A water drench system is to be installed in all void spac-es surrounding the tanks.

609 Void spaces, referred to in 608, are to be provided witheffective means of mechanical ventilation which is to be capa-ble of being sealed off quickly in an emergency.

610 Loading and discharge of phosphorus is to be governedby a centrally operated system which, in addition to includinghigh level alarms, is to ensure that no overflow of tanks is pos-sible and that such operations can be stopped quickly in anemergency from either ship or shore.

611 During cargo transfer, a water hose on deck is to be con-nected to a water supply and kept flowing throughout the op-eration so that any spillage of phosphorus may be washeddown with water immediately.

612 Ship to shore loading and discharge connections are tobe approved by the Society.

C 700 Propylene oxide and mixtures of ethylene oxide/ propylene oxide with ethylene oxide content of not more than 30% by weight

701 Propylene oxide transported under the provisions of thissection is to be acetylene free.

702 Tanks for the carriage of propylene oxide are to be ofsteel or stainless steel construction.

703 Materials

1) All valves, flanges, fittings and accessory equipment are tobe of a type suitable for use with propylene oxide and areto be constructed of steel or stainless steel or other materialacceptable to the Society. The chemical composition of allmaterial used should be submitted for approval prior tofabrication. Discs or disc faces, seats and other wearingparts of valves are to be made of stainless steel containingnot less than 11% chromium.

2) Gaskets are to be constructed of materials which do not re-act with, dissolve in or lower the auto-ignition temperatureof these products and which are fire resistant and possessadequate mechanical behaviour. The surface presented tothe cargo is to be polytetrafluoroethylene (PTFE) or mate-rials giving a similar degree of safety by their inertness.Spirally-wound stainless steel with a filler of PTFE or sim-ilar fluorinated polymer will be accepted.

3) Insulation and packing, if used, is to be of a material whichdoes not react with, dissolve in, or lower the auto-ignitiontemperature of these products.

4) The following materials are generally found unsatisfacto-ry for gaskets, packing and similar uses in containmentsystems for these products and would require testing be-fore being approved:

— neoprene or natural rubber if it contacts propylene ox-ide

— asbestos or binders used with asbestos— materials containing oxides of magnesium, such as

mineral wools.

704 Threaded joints are not permitted in the cargo liquid andvapour lines.

705 Filling and discharge piping are to extend to within 100mm of the bottom of the tank or any sump pit.

706 Containment system

1) The containment system for a tank containing these prod-ucts is to have a valved vapour return connection.

2) The products are to be loaded and discharged in such amanner that venting of the tanks to atmosphere does notoccur. If vapour return to shore is used during tank load-ing, the vapour return system connected to a propylene ox-ide containment system for these products is to beindependent from all other containment systems.

3) During discharging operations, the pressure in the cargotank must be maintained above 0.07 bar gauge.

707 Tanks carrying these products are to be vented inde-pendently of tanks carrying other products. Facilities are to beprovided for sampling the tank contents without opening thetank to the atmosphere.

708 The cargo may be discharged only by deepwell pumps,hydraulically operated submerged pumps, or inert gas dis-placement. Each cargo pump is to be arranged to ensure thatthe oxide does not heat significantly if the discharge line fromthe pump is shut off or otherwise blocked.

709 Cargo hoses used for transfer of these products are to bemarked:

FOR ALKYLENE OXIDE TRANSFER ONLY

710 Cargo tanks, void spaces and other enclosed spaces, ad-jacent to an integral gravity cargo tank, shall either contain acompatible cargo or be inerted by injection of a suitable inertgas. Any enclosed space in which an independent cargo tank islocated is to be inerted. Such inerted spaces and tanks are to bemonitored for propylene oxide and oxygen. The oxygen con-tent of these spaces is to be maintained below 2%.

711 In no case is air to be allowed to enter the cargo pump orpiping system while these products are contained within thesystem.

712 Prior to disconnecting shore-lines, the pressure in liquidand vapour lines is to be relieved through suitable valves in-stalled at the loading header. Liquid and vapour from theselines are not to be discharged to atmosphere.

713 Propylene oxide may be carried in pressure tanks (a4) orin independent (a3) or in integral (a2) gravity tanks. Ethyleneoxide/propylene oxide mixtures are to be carried in independ-ent gravity tanks (a3) or in pressure tanks (a4). Tanks are to bedesigned for the maximum pressure expected to be encoun-tered during loading, conveying and discharging cargo.

714 Tanks

1) Cargo tanks with a design pressure less than 0.6 bar gaugeand tanks for the carriage of ethylene oxide/ propylene ox-ide mixtures with a design pressure less than 1.2 bar gaugeare to have a cooling system to maintain the propylene ox-ide below the reference temperature (See Sec.1 B119).

2) The refrigeration requirement for tanks with a design pres-sure less than 0.6 bar gauge may be waived by the Societyfor ships operating in restricted areas or in voyages of re-stricted duration and account may be taken in such casesof any insulation of the tanks. The area and times of yearwhere and for which such carriage would be permitted willbe included in the conditions of carriage in the Appendixto the classification certificate.

715 Cooling

1) Any cooling system shall maintain the liquid temperaturebelow the boiling temperature at the containment pressure.At least two complete cooling plants automatically regu-lated by variations within the tanks are to be provided.Each cooling plant is to be complete with the necessaryauxiliaries for proper operation. The control system is alsoto be capable of being manually operated. An alarm is tobe provided to indicate malfunctioning of the temperaturecontrols. The capacity of each cooling system is to be suf-ficient to maintain the temperature of the liquid cargo be-

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low the reference temperature (see Sec.1 B119) of thesystem.

2) An alternative arrangement may consist of three coolingplants, any two of which are to be sufficient to maintainthe liquid temperatures below the reference temperature.

3) Cooling media which are separated from the products by asingle wall only is to be non-reactive with the propyleneoxide.

4) Cooling systems requiring compression of propylene ox-ide are not to be used.

716 Pressure relief valve settings are not to be less than 0.2bar gauge, nor greater than 7.0 bar gauge for pressure tanks in-tended for the carriage of propylene oxide and not greater than5.3 bar for the carriage of propylene oxide/ethylene oxide mix-tures.

717 Piping

1) The piping system for tanks to be loaded with these prod-ucts is to be completely separate from piping systems forall other tanks, including empty tanks, and from all cargocompressors. If the piping system for the tanks to be load-ed is not independent as defined in Sec.1 B117, the re-quired piping separation is to be accomplished by theremoval of spool pieces, valves, or other pipe sections, andthe installation of blank flanges at these locations. The re-quired separation applies to any other possible connec-tions such as common inert gas supply lines.

2) These products may be transported only in accordancewith cargo handling plans that have been approved by theSociety. Each intended loading arrangement is to beshown on a separate cargo handling plan. Cargo handlingplans are to show the entire cargo piping system and the lo-cations for installation of blank flanges needed to meet theabove piping separation requirements. A copy of each ap-proved cargo handling plan is to be maintained on boardthe ship.

Guidance note:When a ship carries propylene oxide or mixtures of ethylene ox-ide and propylene oxide under IMO's Certificate of Fitness, theAdministration or delegated body issuing the certificate will berequired to include a reference to the approved cargo handlingplans in the certificate.


3) Before loading propylene oxide, certification verifyingthat the required piping separation has been achieved is tobe obtained from a representative of the Society and car-ried on board the ship. Each connection between a blankflange and pipeline flange is to be fitted with a wire andseal by the Society's representative to ensure that inadvert-ent removal of the blank flange is impossible.

718 The maximum allowable tank filling limits for each car-go tank are to be indicated for each loading temperature whichmay be applied and for the applicable maximum referencetemperature, on a list to be approved by the Society. A copy ofthe list is to be permanently kept on board by the master.

719 The cargo is to be carried under a suitable protectivepadding of nitrogen gas. An automatic nitrogen make-up sys-tem is to be installed to prevent the tank pressure falling below0.07 bar gauge in the event of product temperature fall due toambient conditions or maloperation of refrigeration systems.Sufficient nitrogen is to be available on board to satisfy the de-mand of the automatic pressure control. Nitrogen of acceptablepurity is to be used for padding.

720 The nitrogen system is to be capable of inerting the tankvapour space to an oxygen content of less than 2% prior toloading and maintaining this content during the voyage.

721 A water-spray system is to be provided in the area whereloading and unloading operations are conducted. The capacityand arrangement is to be such as to blanket effectively the areasurrounding the loading manifold and the exposed deck pipe-work associated with product handling. The arrangement ofpiping and nozzles is to be such as to give a uniform distribu-tion over the entire area protected at a discharge rate of 10 l/m2/minute. Remote manual operation should be arranged suchthat remote starting of pumps supplying the water spray systemand remote operation of any normally closed valves in the sys-tem can be carried out from a suitable location outside the car-go area, adjacent to the accommodation spaces and readilyaccessible and operable in the event of fire in the areas protect-ed. The water-spray system is to be capable of both local andremote manual operation and the arrangement is to ensure thatany spilled cargo is washed away. Additionally, a water hosewith pressure to the nozzle, when atmospheric temperaturespermit, is to be connected ready for immediate use during load-ing and unloading operations.

722 A remote operational, controlled closing-rate shut-offvalve is to be provided at each cargo hose connection used dur-ing cargo transfer.

C 800 Sulphuric acid

801 The following sulphuric acids will be accepted for thecarriage in unlined mild steel tanks:

— 96% (66° Be) or higher concentrations— 78% (60° Be) or higher with or without an inhibitor, pro-

vided the corrosive effect on mild steel at 25°C is not high-er than that of 96% (66° Be) commercial sulphuric acid

— spent sulphuric acid from industrial processes, providedthe corrosive effect is not higher than that stated above.

802 Sulphuric acid of other qualities and concentrations thanstated in 801, is to be carried in tanks lined or made from suit-able acid-resistant materials. These will be subject to specialconsideration by the Society.

803 Cargo pumps, piping and valves made from nodular castiron, will be accepted for the following sulphuric acids:

— 65% (51.7° Be) or higher concentrations— spent sulphuric acid from industrial processes, provided

the corrosive effect is not higher than that stated above.

804 P/V-valves and vent pipes from the cargo tank are to bemade of or protected by acid-resistant materials. Vent pipes tounprotected cargo tanks are to extend about 50 mm into thetank.

805 Drip pans are to be provided below pump glands and atshore connections.

806 The bilge piping and pumping system in pump roomsare to be made of or lined with corrosion-resistant material.

C 900 Sulphur liquid

901 Cargo tank ventilation is to be provided to maintain theconcentration of H2S below one half of its lower explosivelimit throughout the cargo tank vapour space for all conditionsof carriage, i.e. below 1.85% by volume.

902 Where mechanical ventilation systems are used formaintaining low gas concentrations in cargo tanks, ventilationfailure alarm is to be provided.

903 Ventilation systems are to be designed and arranged topreclude depositing of sulphur within the system.

904 Openings to void spaces adjacent to cargo tanks are to bedesigned and fitted to prevent the entry of water, sulphur orcargo vapour.

905 Connections are to be provided to enable sampling andanalysis of vapour in void spaces.

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906 An automatic temperature control system for the cargois to be fitted in order to ensure that the temperature of the sul-phur does not exceed 155°C.

A high temperature alarm is to be fitted.

C 1000 Alkyl (C7 — C9) nitrates

1001 The carriage temperature on the cargo should be main-tained below 100°C to prevent the occurrence of a self-sus-tained, exothermic decomposition reaction.

1002 The cargo may not be carried in independent pressurevessels permanently affixed to the vessel's deck unless:

1) the tanks are sufficiently insulated from fire, and

2) the vessel has a water deluge system for the tanks such thatthe cargo temperature is maintained below 100°C and thetemperature rise in the tanks does not exceed 1.5°C/hourfor a fire of 650°C.

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SECTION 16 INERT GAS PLANTS

A. General

A 100 Application101 Chemical tankers of deadweight in excess of 20 000 tonshaving individual cargo tanks exceeding 3000 m3 or cargotanks fitted with washing machines with a nozzle capacity ex-ceeding 17.5 m3/h or a total through put per tank of 110 m3/hare to be fitted with an inert gas system complying with therules in Ch.3 Sec.11, if the vessel is intended for carriage ofchemicals with flash point less than 60°C.

Guidance note:Chemical tankers when transporting oil with flashpoint less than60°C are to comply with the inert gas requirements of SOLASReg. II-2/60.


A 200 Documentation201 Documentation in accordance with Ch.3 Sec.11 is to besubmitted for approval.

B. Materials, Arrangement and Design

B 100 General101 Inert gas systems are to satisfy the requirements of Ch.3Sec.11 to the extent these requirements are applicable. Alter-native solutions to specific requirements in above rules may beaccepted as follows:

1) The water seal required by Ch.3 Sec.11 C602 may be re-placed by an alternative arrangement consisting of two au-tomatically operated shut-off valves in series with aventing valve in between (double block and bleed). Thefollowing conditions apply:

— The operation of the valve is to be automatically exe-cuted. Signals for opening and closing are to be takenfrom the process directly, e.g. inert gas flow or differ-ential pressure.

— An alarm for faulty operation of the valves is to beprovided, e.g. the operational status of "Blower stop"and "Supply valve(s) open" is an alarm condition.

2) A lower capacity of the system than that required by Ch.3Sec.11 D100 may be accepted on the condition that thecargo discharge rate from tanks being protected is restrict-ed to 80% of the inert gas capacity. An entry to this effectwill be made in the "Appendix to the classification certif-icate".

102 An inert gas system based on production of inert gas byother means than combustion of hydrocarbons may be accept-ed upon special considerations.

B 200 Inert gas systems based on other means than combustion of hydrocarbons

201 The requirements of 200 are specific for the gas genera-tor system and apply when inert gas is produced by passingcompressed air through hollow fibres, semi-permeable mem-branes or adsorber materials.

202 The system is to be provided with at least two air com-pressors.

203 The air compressor and the nitrogen generator may beinstalled in the engine room or in a separate compartment. Aseparate compartment is to be treated as one of other machin-ery spaces with respect to fire protection.

204 Where a separate compartment is provided, it is to be po-sitioned outside the cargo area and is to be fitted with an inde-pendent mechanical extraction ventilation system, providing 6air changes per hour. A low oxygen alarm is to be fitted. Thecompartment is to have no direct access to accommodationspaces, service spaces or control stations.

205 Where fitted, a nitrogen receiver or buffer tank may beinstalled in a dedicated compartment or in the separate com-partment containing the air compressor and the generator, ormay be located in the cargo area. Where the nitrogen receiveror buffer tank is installed in an enclosed space, the access is tobe arranged only from the open deck and the access door is toopen outwards. Permanent ventilation and alarm are to be fit-ted as required in 204.

206 Nitrogen separating systems that may be destroyed byhigh temperature in the supply air are to be arranged with analarm and automatic shutdown of the system upon alarm con-ditions.

B 300 Nitrogen inert gas systems fitted for other pur-poses

301 If an inert gas system is fitted for other applications thanstated in A101, the requirements in 200 apply. However, onlyone air compressor is required and a permanent recording ofthe parameters in Ch.3 Sec.11 E202 is not mandatory.

302 Where the connections to the hold spaces or to the cargopiping are not permanent, two non-return valves may substi-tute the non-return devices required in Ch.3 Sec.11 C602 andC603.

(IACS URF20)

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SECTION 17 PERSONNEL PROTECTION


A 100 Protective equipment101 For the protection of crew members who are engaged inloading and discharging operations, the ship is to have onboard suitable protective equipment consisting of large aprons,special gloves with long sleeves, suitable footwear, coverallsof chemical-resistant material, and tight-fitting goggles or faceshields or both. The protective clothing and equipment shouldcover all skin so that no part of the body is unprotected.

Guidance note:The number of protective clothing is normally to be a minimumof six (6) sets.


102 Work clothes and protective equipment are to be kept ineasily accessible places and in special lockers. Such equipmentshould not be kept within accommodation spaces, with the ex-ception of new, unused equipment and equipment which hasnot been used since undergoing a thorough cleaning process.Storage rooms for such equipment may, however, upon specialconsideration be approved within accommodation spaces if ad-equately segregated from living spaces such as cabins, pas-sageways, dining rooms, bathrooms, etc.

B. Safety Equipment

B 100 Safety equipment101 Ships carrying cargoes for which reference to Sec.15A300 or A400 are listed in the List of Cargoes, are to have onboard sufficient, but not less than three complete sets of safetyequipment each permitting personnel to enter a gas filled com-partment and perform work there for at least 20 minutes. Suchequipment is to be in addition to that required by regulation II-2/17 of the SOLAS Convention, as amended.

102 One complete set of safety equipment is to consist of:

1) One self-contained air-breathing apparatus (not usingstored oxygen),

2) protective clothing, boots, gloves and tight-fitting goggles,

3) fireproof lifeline with belt resistant to the cargoes carried,and

4) explosion-proof lamp.

103 For the safety equipment required in 101, all ships are tocarry the following, either:

1) one set of fully charged spare air bottles for each breathingapparatus;

2) a special air compressor suitable for the supply of high-pressure air of the required purity;

3) a charging manifold capable of dealing with sufficientspare breathing apparatus air bottles for the breathing ap-paratus;or

4) fully charged spare air bottles with a total free air capacityof at least 6 000 l for each breathing apparatus on board inexcess of the requirements of regulation II-2/17 of the SO-LAS Convention, as amended.

104 A cargo pump-room on ships carrying cargoes which are

subject to the requirements of Sec.15 A800 or cargoes forwhich in the List of Cargoes toxic vapour detection equipmentis required, but is not available should have either:

1) a low-pressure line system with hose connections suitablefor use with the breathing apparatus required by 101. Thissystem should provide sufficient high-pressure air capaci-ty to supply, through pressure reduction devices, enoughlow-pressure air to enable two men to work in a gas-dan-gerous space for at least 1 h without using the air bottlesand breathing apparatus air bottles from a special air com-pressor suitable for the supply of high-pressure air of therequired purity;or

2) an equivalent quantity of spare bottled air in lieu of thelow-pressure air line.

105 At least one set of safety equipment as required by 102should be kept in a suitable clearly marked locker in a readilyaccessible place near the cargo pump-room. The other sets ofsafety equipment should also be kept in suitable, clearlymarked, easily accessible, place.

106 A stretcher which is suitable for hoisting an injured per-son up from spaces such as the cargo pump-room is to beplaced in a readily accessible location.

107 Ships intended for the carriage of certain cargoes are tobe provided with suitable respiratory and eye protection suffi-cient for every person on board for emergency escape purpos-es, subject to the following:

1) self-contained breathing apparatus should normally have aduration of service of at least 15 min:

2) emergency escape respiratory protection should not beused for fire-fighting or cargo handling purposes andshould be marked to that effect.

Individual cargoes to which the provisions of this paragraphapply are indicated in the List of Cargoes.

C. Medical First-aid Equipment

C 100 General

101 The ship is to have on board medical first-aid equipmentincluding oxygen resuscitation equipment and antidotes forcargoes carried based on the guidelines developed by IMO.

Guidance note:See the Medical First Aid Guide for Use in Accidents InvolvingDangerous Goods (MFAG) which provides advice on the treat-ment of casualties in accordance with the symptoms exhibited aswell as equipment and antidotes that may be appropriate for treat-ing the casualty.


D. Decontamination Showers and Eye Washes

D 100 General

101 Suitably marked decontamination showers and eye-washes are to be available on deck in convenient locations.The showers and eyewashes are to be operable in all ambientconditions.

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Guidance note:Decontamination shower and eye wash units should be locatedon both sides of the ship in the cargo manifold area and at the aftend of the cargo area. A heating system with temperature control

is considered required. Water supply capacity should be suffi-cient for simultaneous use of at least two units.


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Amended, Rules for Ships, January 2003see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.4 App.A –

APPENDIX A LIST OF CARGOES — TANKER FOR CHEMICALS

A. General

A 100 List of cargoes101 This list is meant to provide a summary of some mini-mum constructional and operational requirements to the spe-

cific cargoes listed. The requirements are defined by theregister information and the summary of special requirements.

The list may not contain all cargoes allowed to be carried inbulk. For complete information, see the IBC Code Ch.17 andCh.18 and the latest IMO MEPC.2/Circ.

In this list prefixes are shown either in normal type, with capi-tal letters, where the prefix forms an integral part of the name,(a) below, or in small letters with a hyphen, where the sub-stance name is entered without regard to its prefix, (b) below.

Some common prefixes and the manner in which they are usedare shown below:

a) MONO DI TRI TETRA PENTA ISO BIS etc.

b) n-, or normal-sec-, or secondary-

tert-, or tertiary-o-, or ortho-m-, or meta-p-, or para-neo-,sym-,uns-,trans-,α- or alphaβ- or beta

Table A1 Abbreviations

Ship type (See Sec.3):Ship type 1 : Ship type 2 : Ship type 3 :

Damage stability standard in accordance with IMO's International Chemical Code

D: Liquid density (kg/m3), except where a temperature is indicated, the density is given for 20°C.

Tank type: (See Sec.1)

a1 : integral tank type a1 (single skin)a2 : integral tank type a2 (double skin)a3 : independent tank type a3 (atmospheric)a4 : independent tank type a4 (pressure)

Cargo tank material: ss : identifies tanks made of stainless steel, clad or solid

Gauging system: (See Sec.13)

b1 : openb2 : restrictedb3 : closedb4 : indirect

Tank vent system: (See Sec.9)c1 : open ventingc2 : outlet 6 m above deckc3 : outlet B/3 above deck

Overflow control: (See Sec.13) f1 : High level alarmf2 : High high level alarm

Cargo stripping efficiency: (See Sec.6)

str 0.1 : residue quantity not in excess of 0.1 m3str 0.3 : residue quantity not in excess of 0.3 m3

Fire protection

A: Alcohol foam deck system.B: Regular foam deck system.C: Water sprayD: Dry chemical

Vapour hazard F: Flammable vapoursT: Toxic vapours

Dash, « - «, indicates nil requirements

DET NORSKE VERITAS

Rules for Ships, January 2003 Amended,Pt.5 Ch.4 App.A – see Pt.0 Ch.1 Sec.3, July 2005

Lis

t of

car

goes

A —

D

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

AC

ET

IC A

CID

C

H3C

OO

H3

1050

a1b

2c2

f1T

1II

AA

FS

ec.7

A10

7 S

ec.1

5 A

207

A30

0 B

103

to B

107

Sec.

17 B

107

AC

ET

IC A

NH

YD

RID

E

(C

H3C

O) 2

O2

1080

a2b

2c2

f1T

2II

AA

F TS

ec.1

5 A

207

A30

0 B

103

to B

107

Sec.

17 B

107

AC

ET

ON

E C

YA

NO

HY

DR

IN

(in

hibi

ted)

(

CH

3)2C

(OH

)CN

293

0a2

b3

c3f2

T1

II A

AT

Sta

bili

zed

duri

ng

tran

spor

t S

ec.1

5 A

207

A30

0 A

400

A80

0 A

900

A12

00 S

ec.1

7 B

107

AC

ET

ON

ITR

ILE

C

H3C

N2

780

a2b

2c3

f1T

2II

AA

F TS

ec.1

5 A

300

A40

0 A

1200

Sec

.17

B10

7A

CR

YL

AM

IDE

SO

LU

TIO

N

(in

hibi

ted)

(

50%

or

less

) C

H2C

HC

ON

H2

210

48a2

b3

c2f1

No

Sec

.15

A30

0 A

400

A50

1

AC

RY

LIC

AC

ID (

inhi

bite

d)

CH

2CH

CO

OH

310

60a1

b2

c2f1

T2

II A

AF T

Sec.

15 A

207

AC

RY

LO

NIT

RIL

E (

inhi

bite

d)

CH

2CH

CN

281

0a2

b3

c3f2

str

0.1

T1

II B

AF T

Sec.

15 A

204

A30

0 A

400

A12

00A

DIP

ON

ITR

ILE

C

N(C

H2)

4CN

395

0a1

b2

c2II

BA

T

AL

AC

HL

OR

TE

CH

NIC

AL

(

90%

or

mor

e)3

1130

a2b

1c1

f1st

r 0.

1A C

Sec

.15

A20

7 A

1000

AL

CO

HO

L (

C12

- C

15)

PO

LY

(

1 -

6) E

TH

OX

YL

AT

ES

290

0a2

b1

c1f1

A

AL

CO

HO

L (

C12

- C

15)

PO

LY

(

7 -

19)

ET

HO

XY

LA

TE

S3

abou

t90

0a1

b1

c1f1

str

0.1

A

AL

CO

HO

L (

C12

- C

15)

PO

LY

(20

+)

ET

HO

XY

LA

TE

S3

a1

b1

c1st

r 0.

3A

AL

CO

HO

L (

C6

- C

17)

(se

cond

ary)

PO

LY

(3

- 6)

E

TH

OX

YL

AT

ES

2ab

out

950

a2b

1c1

f1A

AL

CO

HO

L (

C6

- C

17)

(se

cond

ary)

PO

LY

(7

- 12

) E

TH

OX

YL

AT

ES

3ab

out

1000

a1b

1c1

f1st

r 0.

1A

AL

KA

NE

(C

14 -

C17

) S

UL

FON

IC A

CID

, S

OD

IUM

SA

LT

60

- 65

% I

N W

AT

ER

3 a

1b

2c2

str

0.1

No

AL

KA

NE

S (C

6 -

C9)

3a1

b3

c2f1

str

0.3

AF

AL

KA

RY

L P

OL

YE

TH

ER

S (

C9

- C

20)

3 a

1b

1c1

f1st

r 0.

1A B

DET NORSKE VERITAS


AL

KY

L A

CR

YL

AT

E V

INY

L

PY

RID

INE

CO

POL

YM

ER

IN

T

OL

UE

NE

390

0a1

b2

c2f1

str

0.3

AF

AL

KY

L B

EN

ZE

NE

/-IN

DA

NE

/-

IN

DE

NE

MIX

TU

RE

(C

12 -

C17

) T

OT

AL

CA

RB

ON

2ab

out

900

a2b

1c2

f1A

AL

KY

L (

C3

- C

4) B

EN

ZE

NE

S3

860

a1b

2c2

f1A

FA

LK

YL

(C

5 -

C8)

BE

NZ

EN

ES

2 a

2b

1c1

f1A

AL

KY

L B

EN

ZE

NE

SU

LPH

ON

IC A

CID

310

0014

00a1

b1

c1st

r 0.

3B

AL

KY

L B

EN

ZE

NE

SU

LPH

ON

IC A

CID

, SO

-D

IUM

SA

LT

SO

LU

TIO

N3

abou

t10

00a1

b1

c1st

r 0.

3N

o

AL

KY

L (

C7

- C

9) N

ITR

AT

ES

2 a

2b

1c1

f1st

r 0.

1A B

Sec

.15

C10

00

AL

LY

L A

LC

OH

OL

C

H2C

HC

H2O

H2

850

a2b

3c3

f2st

r 0.

1T

2II

BA

F TS

ec.1

5 A

300

A40

0 A

1200

Sec

.17

B10

7A

LL

YL

CH

LO

RID

E

CH

2CH

CH

2Cl

294

0a2

b3

c3f2

str

0.1

T2

II A

AF T

Sec

.15

A30

0 A

400

A12

00 S

ec.1

7 B

107

AL

UM

INIU

M C

HL

OR

IDE

(30

% o

r le

ss)/

H

YD

RO

CH

LO

RIC

AC

ID (

20%

or

less

) S

OL

UT

ION

311

70to

124

0a3

b2

c2N

o S

ec.1

5 B

100

Sec

.17

B10

7

2- (

2-A

MIN

OE

TH

OX

Y)

ET

HA

NO

L

NH

2CH

2CH

2OC

H2C

H2O

H3

1057

a1b

1c1

f1A D

Sec

.15

A20

3

AM

INO

ET

HY

L E

TH

AN

OL

AM

INE

310

30a1

b1

c1T

2II

AA

Sec

.15

A20

2N

-AM

INO

ET

HY

LP

IPE

RA

ZIN

E

C6H

15N

3

398

5a1

b2

c2f1

A S

ec.1

5 A

202

2-A

MIN

O-2

-ME

TH

YL

-1-P

RO

PA

NO

L

(90

% o

r le

ss)

395

0a1

b1

c1A

Sec.

15 A

202

AM

MO

NIA

(aq

ueou

s so

lutio

n 2

8% o

r le

ss)

NH

3

390

0a1

b2

c2st

r 0.

3C

TS

ec.1

5 A

205

A21

0 S

ec.1

7 B

107

AM

MO

NIU

M N

ITR

AT

E S

OL

UT

ION

(

93%

or

less

)2

1600

a3b

1c1

f1N

o S

ec.1

5 A

211

A30

0 A

800

B10

5 C

100

AM

MO

NIU

M S

UL

PH

IDE

SO

LU

TIO

N

(45

% o

r le

ss)

(N

H4)

2S/H

2O

299

3a2

b3

c3f2

str

0.1

AF

T

Sec.

15 A

202

A30

0 A

400

A12

00 B

202

Sec

.17

B10

7A

MM

ON

IUM

TH

IOC

YA

NA

TE

(

25%

or

less

) /A

MM

ON

IUM

TH

IOS

UL

PHA

TE

(

20%

or

less

) SO

LU

TIO

N

311

00

to

120

0

a1b

1c2

str

0.3

No

AM

MO

NIU

M T

HIO

SUL

PH

AT

E

SO

LU

TIO

N (

60%

or

less

)3

abou

t 1

500

a1b

1c1

str

0.3

No

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


AM

YL

AC

ET

AT

E (

all i

som

ers)

388

0a1

b2

c2f1

str

0.3

AF

AN

ILIN

E

C6H

5NH

2

210

20a2

b3

c3f2

str

0.3

T1

II A

AT

Sec

.15

A30

0 A

400

A12

00

AV

IAT

ION

AL

KY

LA

TE

S

(C

8 pa

raff

ins

and

iso-

para

ffin

s B

PT

95

- 12

0°C

)

370

0a1

b2

c2f1

str

0.3

T1

II A

BF

BE

NZ

EN

E (

incl

udin

g so

luti

ons

with

mor

e th

an 1

0%)

C6H

6

388

0a1

b3

c3f1

str

0.3

T1

II A

A BF

T

Sec

.7 A

107

Sec

.15

A12

00

BE

NZ

EN

E S

UL

PH

ON

YL

CH

LO

RID

E

C6H

5SO

2Cl

313

78a1

b2

c2f1

A

DT

Sec.

15 A

202

BE

NZ

YL

AC

ET

AT

E

CH

3CO

2CH

2C6H

5

310

60a1

b1

c1st

r 0.

3A

BE

NZ

YL

AL

CO

HO

L3

1040

a1b

1c1

str

0.3

AB

EN

ZY

L C

HL

OR

IDE

(in

hibi

ted)

C

6H5C

H2C

l2

1010

a2b

3c3

f2st

r 0.

1T

1II

AB

TS

ec.1

5 A

300

A40

0 A

1200

Sec

.17

B10

7B

UT

EN

E O

LIG

OM

ER

3ab

out

730

a1b

1c1

f1st

r 0.

1A

BU

TY

L A

CE

TA

TE

(al

l iso

mer

s)3

880

a1b

2c2

f1st

r 0.

3A

Fn-

BU

TY

L A

CR

YL

AT

E (

inhi

bite

d)

(al

l iso

mer

s)

CH

2CH

CO

O(C

H2)

3CH

3

289

0a2

b2

c2f1

str

0.1

T2

II B

AF T

BU

TY

LA

MIN

E (

all i

som

ers)

272

3a2

b2

c3f1

str

0.3

AF

T

Sec.

15 A

202

A20

3 A

300

A40

0 A

1200

BU

TY

LB

EN

ZE

NE

(al

l iso

mer

s)3

abou

t 8

50a1

b2

c2f1

A

BU

TY

L B

EN

ZY

L P

HT

HA

LA

TE

211

20a2

b1

c1f1

AB

UT

YL

BU

TY

RA

TE

(al

l iso

mer

s)3

870

a1b

2c2

f1st

r 0.

3A

FB

UT

YL

/DE

CY

L/C

ET

YL

/EIC

OSY

L

ME

TH

AC

RY

LA

TE

MIX

TU

RE

(

inhi

bite

d)

3<

1000

a1b

2c2

A

D

1,2-

BU

TY

LE

NE

OX

IDE

H

2CO

CH

CH

2CH

3

383

1a2

b2

c3f1

str

0.3

T2

IIB

A

CF

Sec

.15

A60

0 A

1200

C70

1 C

702

C70

4 C

705

C70

8 to

C71

1 C

713

C71

7 C

719

C72

1n-

BU

TY

L E

TH

ER

C

H3(

CH

2)3O

(CH

2)3C

H3

377

0a1

b2

c3st

r 0.

3T

4II

BA

F TSe

c.15

A30

0 A

400

A60

0B

UT

YL

ME

TH

AC

RY

LA

TE

(in

hibi

ted)

C

H2C

(CH

3)C

OO

C4H

9

389

0a1

b2

c2f1

II A

A

DF

T

n-B

UT

YL

PR

OP

ION

AT

E3

880

a1b

2c2

f1st

r 0.

3A

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


BU

TY

RA

LD

EH

YD

E (

all i

som

ers)

C

H3(

CH

2)2C

HO

382

0a1

b1

c2f1

str

0.3

T3

II A

AF T

Sec.

15 A

501

BU

TY

RIC

AC

ID

CH

3(C

H2)

2CO

OH

395

8a1

b2

c2A

Sec

.15

A20

7 A

300

B10

1 B

103

B10

4 B

105

B10

6 B

107

CA

LC

IUM

AL

KY

L (

C9)

P

HE

NO

L S

UL

PH

IDE

/PO

LY

OL

EFI

N

PH

OSP

HO

RO

SU

LP

HID

E M

IXT

UR

E

296

0a2

b1

c1f1

A

B

CA

LC

IUM

HY

PO

CH

LO

RIT

E

SO

LU

TIO

N (

15%

or

less

)3

1140

a1b

2c2

str

0.3

No.

Sec

.15

A20

6 A

501

CA

LC

IUM

HY

PO

CH

LO

RIT

E

SO

LU

TIO

N (

mor

e th

an 1

5%)

311

40a1

b2

c2f1

str

0.1

No

Sec

.15

A20

6 A

501

CA

LC

IUM

LO

NG

CH

AIN

A

LK

YL

SA

LIC

YL

AT

E (

C13

+)

399

0a1

b1

c1st

r 0.

3A

B

CA

MPH

OR

OIL

292

0a2

b2

c2f1

str

0.1

II A

BF

CA

RB

OL

IC O

IL2

abou

t 1

100

a2b

3c3

f2A

F

TS

ec.7

A10

7 S

ec.1

5 A

300

A40

0C

AR

BO

N D

ISU

LP

HID

E

CS 2

212

60a3

b3

c3f2

str

0.1

T6

II C

CF T

Sec.

15 A

300

A40

0 A

600

C20

0 S

ec.1

7 B

107

CA

RB

ON

TE

TR

AC

HL

OR

IDE

C

Cl 4

315

90a1

b3

c3f1

str

0.1

No

TS

ec.1

5 A

300

A40

0 A

1200

Sec

.17

B10

7C

ASH

EW

NU

T S

HE

LL

OIL

(un

trea

ted)

395

0a1

b2

c2A

B

T

CA

US

TIC

SO

DA

(so

lutio

n)

(so

dium

hyd

roxi

de s

olut

ion)

N

aOH

3m

ax.

1540

a1b

1c1

No

Sec

.15

A20

2 (

copp

er, b

rass

and

b

ronz

e m

ay b

e us

ed)

CE

TY

L/E

ICO

SYL

ME

TH

AC

RY

LA

TE

M

IXT

UR

E (

inhi

bite

d)

C16

, C18

and

C20

386

0a1

b1

c1A

D

CH

LO

RIN

AT

ED

PA

RA

FFIN

S (

C10

- C

6 13)

1ab

out

1100

a2b

1c1

f2A

CH

LO

RO

AC

ET

IC A

CID

(80

% o

r le

ss)

CH

2ClC

OO

H2

1330

a2b

3c2

f2st

r 0.

3N

o S

ec.1

5 A

300

A40

0 B

103

B10

5 B

106

B10

7C

HL

OR

OB

EN

ZE

NE

C

6H5C

l3

1110

a1b

2c2

f1st

r 0.

1T

1II

AB

F TC

HL

OR

OFO

RM

C

HC

l 33

1480

a1b

2c3

f1st

r 0.

1T

Sec

.15

A30

0 A

400

CH

LO

RO

HY

DR

INS

(cr

ude)

212

00a2

b3

c3f2

II A

AF T

Sec

.15

A30

0 A

400

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


4-C

HL

OR

O-2

-ME

TH

YL

PHE

NO

XY

AC

ET

IC

AC

ID, D

IME

TH

YL

AM

INE

SA

LT

SO

LU

-T

ION

3ab

ove

100

0a1

b1

c1st

r 0.

3Se

c.15

A20

2

o-C

HL

OR

ON

ITR

OB

EN

ZE

NE

C

6H4C

lNO

2

214

00a2

b3

c3f2

str

0.1

B

DT

Sec

.15

A30

0 A

400

A80

0 A

1000

2- o

r 3-

CH

LO

RO

PRO

PIO

NIC

AC

ID3

1400

a1b

1c1

str

0.3

A S

ec.1

5 A

207

A30

0 B

103

to B

107.

CH

LO

RO

SU

LP

HO

NIC

AC

ID

ClS

O2O

H1

1770

a2b

3c3

f2st

r 0.

3N

oT

Sec.

15 A

300

A40

0 A

502

B10

0m

-CH

LO

RO

TO

LU

EN

E

CH

3C6H

4Cl

310

65

107

8a1

b2

c2f1

str

0.1

A

BF

T

o-C

HL

OR

OT

OL

UE

NE

310

65

107

8a1

b2

c2f1

A

BF

T

p-C

HL

OR

OT

OL

UE

NE

210

65

107

8a2

b2

c2f1

str

0.1

A

BF

T

CH

LO

RO

TO

LU

EN

ES

(mix

ed is

omer

s)2

1078

a2b

2c2

f1A

B

F

TC

OA

L T

AR

211

00

to

130

0

a2b

2c2

f1T

2II

AB

D

CO

AL

TA

R N

AP

HT

HA

S

OL

VE

NT

383

0 8

60a1

b2

c2f1

str

0.1

T3

II A

A

DF

T

CO

AL

TA

R P

ITC

H (

mol

ten)

312

00a3

b2

c2f1

T2

II A

B

DC

OB

AL

T N

AP

HT

HE

NA

TE

I

N S

OL

VE

NT

NA

PH

TH

A2

a2

b2

c2

CO

CO

NU

T O

IL F

AT

TY

AC

ID3

900

a1b

1c1

str

0.3

AC

RE

OSO

TE

(co

al ta

r)2

1070

a2b

1c1

f1T

2II

AA

D

CR

EO

SOT

E (

woo

d)2

1100

a2b

1c1

f1T

2II

AA

D

CR

ESO

LS

(all

isom

ers)

C

H3C

6H4O

H2

1040

a2b

1c1

f1T

1II

AA

B

CR

ESY

LIC

AC

ID, D

EP

HE

NO

LIZ

ED

210

40a2

b2

c1f1

A

BC

RE

SYL

IC A

CID

, S

OD

IUM

SA

LT

SO

LU

TIO

N2

1000

to

1

400

a2b

1c1

No

Sec

.15

A20

2

CR

OT

ON

AL

DE

HY

DE

C

H3C

HC

HC

HO

285

0a2

b2

c3f1

T3

II B

AF T

Sec.

15 A

300

A40

0 A

501

A12

00

Sec

.17

B10

71,

5,9-

CY

CL

OD

OD

EC

AT

RIE

NE

(

inhi

bite

d)1

890

a2b

2c2

f2A

Sec

.15

A20

3

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


CY

CL

OH

EPT

AN

E

C7H

14

380

9a1

b2

c2f1

str

0.3

AF

CY

CL

OH

EX

AN

E3

780

a1b

2c2

f1st

r 0.

3A

FC

YC

LO

HE

XA

NO

NE

C

6H10

O3

950

a1b

2c2

f1T

2II

AA

F TSe

c.15

A20

6

CY

CL

OH

EX

AN

ON

E,

CY

CL

OH

EX

AN

OL

MIX

TU

RE

395

0a1

b2

c2A

F

TSe

c.15

A20

6

CY

CL

OH

EX

YL

AC

ET

AT

E3

970

a1b

2c2

f1st

r 0.

1A

FC

YC

LO

HE

XY

LA

MIN

E

C6H

13N

381

9a1

b2

c2f1

str

0.3

T3

II A

A

CF

T

Sec.

15 A

202

1,3-

CY

CL

OP

EN

TA

DIE

NE

D

IME

R (

mol

ten)

298

0a2

b2

c2f1

str

0.1

AF

Sec

.15

A10

00

CY

CL

OPE

NT

AN

E3

740

a1b

2c2

f1st

r 0.

3A

FC

YC

LO

PEN

TE

NE

375

0a1

b2

c2f1

str

0.1

AF

p-C

YM

EN

E3

860

a1b

2c2

f1st

r 0.

3A

FD

EC

AN

OIC

AC

ID3

886

a1b

1c1

str

0.3

AD

EC

EN

E3

740

a1b

2c2

f1st

r 0.

1A

FD

EC

YL

AC

ET

AT

E3

870

a1b

1c1

f1st

r 0.

1A

DE

CY

L A

CR

YL

AT

E (

inhi

bite

d)

CH

3(C

H2)

9OC

OC

H:C

H2

290

0a2

b1

c1f1

T3

II A

A

C

D

Sec

.15

A20

3

DE

CY

L A

LC

OH

OL

(al

l iso

mer

s)3

830

a1b

1c1

f1st

r 0.

1A

DE

CY

LO

XY

TE

TR

AH

YD

RO

-TH

IOP

HE

NE

D

IOX

IDE

210

30a2

b2

c2f1

str

0.3

AT

DIB

UT

YL

AM

INE

(

C4H

9)2N

H3

760

a1b

2c2

f1st

r 0.

3T

2II

AA

C

D

F

TSe

c.15

A20

5

DIB

UT

YL

HY

DR

OG

EN

P

HO

SPH

ON

AT

E3

980

a1b

1c1

f1st

r 0.

1A

DIB

UT

YL

PH

TH

AL

AT

E2

1050

a2b

1c1

f1A

DIC

HL

OR

OB

EN

ZE

NE

(al

l iso

mer

s)

CH

6H4C

l 22

1305

a2b

2c2

f1st

r 0.

1T

1II

AA

B

D

TSe

c.15

A20

6

1,1-

DIC

HL

OR

OE

TH

AN

E

CH

3CH

Cl 2

311

70a1

b2

c2f1

T2

II A

AF T

Sec.

17 B

107

DIC

HL

OR

OE

TH

YL

ET

HE

R

ClC

H2C

H2O

CH

2CH

2Cl

212

20a2

b2

c2f1

str

0.1

T2

II A

AF T

Sec.

15 A

206

1,6-

DIC

HL

OR

OH

EX

AN

E2

1070

a2b

2c2

f1st

r 0.

1A

B

T

2,2'

-DIC

HL

OR

OIS

OPR

OP

YL

ET

HE

R

[C

lCH

2C(C

H3)

H] 2

O2

1128

a2b

2c3

f2st

r 0.

3A

C

D

TSe

c.15

A20

6 A

300

A40

0 A

1200

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


DIC

HL

OR

OM

ET

HA

NE

313

40a1

b2

c2N

oT

2,4-

DIC

HL

OR

OP

HE

NO

L

C6H

3Cl 2

OH

213

82a2

b2

c2f1

AT

Sec

.15

A20

2 A

700

2,4-

DIC

HL

OR

OP

HE

NO

XY

AC

ET

IC

AC

ID, D

IET

HA

NO

LA

MIN

E S

AL

T

SO

LU

TIO

N

CH

2CH

C6H

4CH

3

312

80a1

b1

c1f1

No

Sec

.15

A20

2

2,4-

DIC

HL

OR

OP

HE

NO

XY

AC

ET

IC

AC

ID, D

IME

TH

YL

AM

INE

SA

LT

S

OL

UT

ION

(70

% o

r le

ss)

312

00a1

b1

c1f1

No

Sec

.15

A20

2

2,4-

DIC

HL

OR

OP

HE

NO

XY

AC

ET

IC

AC

ID, T

RII

SOPR

OP

AN

OL

AM

INE

S

AL

T S

OL

UT

ION

C

17H

27O

6NC

l 2

312

30a1

b1

c1f1

No

Sec

.15

A20

2

1,1-

DIC

HL

OR

OP

RO

PA

NE

213

20a2

b2

c3f1

str

0.3

A

BF

T

Sec

.15

A30

0 A

400

1,2-

DIC

HL

OR

OP

RO

PA

NE

C

H3C

HC

lCH

2

211

60a2

b2

c3f1

str

0.3

T1

II A

A

BF

T

Sec

.15

A30

0 A

400

1,3-

DIC

HL

OR

OP

RO

PA

NE

211

60a2

b2

c3f1

T1

II A

A

BF

T

Sec

.15

A30

0 A

400

1,3-

DIC

HL

OR

OPR

OPE

NE

C

HC

lCH

CH

2Cl

212

30a2

b3

c3f2

str

0.1

T2

II A

A

BF

T

Sec.

15 A

300

A40

0 A

800

A12

00 S

ec.1

7 B

107

DIC

HL

OR

OPR

OPE

NE

/ D

ICH

LO

RO

PRO

PA

NE

MIX

TU

RE

S2

1200

a2b

3c3

f2st

r 0.

1T

2II

AA

B

D

F

TSe

c.15

A30

0 A

400

A80

0 A

1200

Sec

.17

B10

72,

2-D

ICH

LO

RO

PR

OP

ION

IC A

CID

C

H3C

Cl 2

CO

OH

313

89a1

b2

c2A

Sec

.15

A20

7 (

alum

iniu

m n

ot

per

mit

ted)

A

301

A70

0 B

103

B10

5 B

106

B10

7D

IET

HA

NO

LA

MIN

E

(H

OC

H2C

H2)

2NH

311

00a1

b1

c1T

1II

AA

Sec

.15

A20

3

DIE

TH

YL

AM

INE

(

C2H

5)2N

H3

710

a1b

2c3

f1st

r 0.

3T

2II

AA

F TS

ec.1

5 A

202

A30

0 A

400

Sec

.17

B10

7D

IET

HY

LA

MIN

OE

TH

AN

OL

388

0a1

b2

c2f1

str

0.3

T2

II A

A

CF

T

Sec.

15 A

202

2,6-

DIE

TH

YL

AN

ILIN

E3

960

a2b

1c1

f1st

r 0.

3B

C

D

Sec

.15

A20

5

DIE

TH

YL

BE

NZ

EN

E3

870

a1b

2c2

f1A

FD

IET

HY

LE

NE

TR

IAM

INE

N

H2C

H2C

H2N

HC

H2C

H2N

H2

395

0a1

b1

c1T

2II

AA

Sec

.15

A20

3

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


DIE

TH

YL

ET

HE

R

C2H

5OC

2H5

271

0a3

b3

c2f2

T4

II B

AF T

Sec.

15 A

210

A40

0 A

600

B20

0 C

300

Sec

.17

B10

7D

I- (

2-E

TH

YL

HE

XY

L)

PH

OSP

HO

RIC

A

CID

[

C4H

9CH

(C2H

5)C

H2]

2HP

O4

397

3a1

b1

c1st

r 0.

3B

D

Sec

.15

A20

3

DIE

TH

YL

PH

TH

AL

AT

E3

1120

a1b

1c1

str

0.3

AD

IET

HY

L S

UL

PHA

TE

(

C2H

5)2S

O4

211

72a2

b3

c2f1

str

0.1

A S

ec.1

5 A

204

DIG

LY

CID

YL

ET

HE

R O

F B

ISP

HE

NO

L A

311

60a1

b1

c1f1

str

0.1

A

DIG

LY

CID

YL

ET

HE

R O

F B

ISP

HE

NO

L F

312

00a1

b1

c1f1

str

0.1

A

DI-

n-H

EX

YL

AD

IPA

TE

393

9a1

b1

c1f1

str

0.1

AD

IIS

OB

UT

YL

AM

INE

[

(CH

3)2C

HC

H2]

2NH

274

5a2

b2

c2f1

str

0.3

A

C

D

F

TSe

c.15

A20

2 A

300

A40

0

DII

SO

BU

TY

LE

NE

372

0a1

b2

c2f1

str

0.1

AF

DII

SO

BU

TY

L P

HT

HA

LA

TE

310

40a1

b1

c1f1

str

0.1

AD

IIS

OPR

OP

AN

OL

AM

INE

(

CH

3CH

(OH

)CH

2)2N

H3

990

a1b

1c1

str

0.3

T2

II A

A S

ec.1

5 A

203

DII

SO

PRO

PY

LA

MIN

E

((C

H3)

2CH

) 2N

H2

720

a2b

3c3

f2st

r 0.

3T

2II

AA

F TSe

c.15

A20

3 A

300

A40

0 S

ec.1

7 B

107

DII

SO

PRO

PY

LB

EN

ZE

NE

(al

l iso

mer

s)2

860

a2b

1c1

f1A

N,N

-DIM

ET

HY

LA

CE

TA

MID

E

SO

LU

TIO

N (

40%

or

less

)3

abou

t 1

000

a1b

2c3

BT

Sec

.15

A20

5 A

1200

DIM

ET

HY

L A

DIP

AT

E3

1070

a1b

1c1

f1st

r 0.

1A

DIM

ET

HY

LA

MIN

E S

OL

UT

ION

(

45%

or

less

) (

CH

3)2N

H

370

0a1

b2

c3f1

str

0.3

T2

II A

A

C

D

F

TSe

c.15

A20

2 A

300

A40

0 S

ec.1

7 B

107

DIM

ET

HY

LA

MIN

E S

OL

UT

ION

(

grea

ter

than

45%

but

not

gre

ater

than

55%

) (

CH

3)2N

H/H

2O

280

0a2

b3

c3f2

str

0.3

A

C

D

F

TSe

c.15

A20

2 A

300

A40

0 A

1200

Sec

.17

B10

7D

IME

TH

YL

AM

INE

SO

LU

TIO

N

(gr

eate

r th

an 5

5% b

ut n

ot g

reat

er th

an 6

5%)

280

0a2

b3

c3f2

str

0.3

A

C

D

F

TSe

c.15

A20

2 A

300

A40

0 A

1200

B20

0 S

ec.1

7 B

107

N,N

-DIM

ET

HY

LC

YC

LO

HE

XY

LA

MIN

E

(C

H3)

2NC

6H11

285

0a2

b2

c3f1

str

0.3

A

CF

T

Sec.

15 A

202

A30

0 A

400

A12

00D

IME

TH

YL

ET

HA

NO

LA

MIN

E

(C

H3)

2NC

H2C

H2O

H3

868

a1b

2c2

f1T

3II

AA

D

F

TSe

c.15

A20

3

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


DIM

ET

HY

LF

OR

MA

MID

E

(C

H3)

2NC

HO

395

0a1

b2

c2f1

T2

II A

A

DF

T

DIM

ET

HY

L G

LU

TU

RA

TE

310

70a1

b1

c2st

r 0.

3A

DIM

ET

HY

L H

YD

RO

GE

N

PH

OSP

HIT

E

(C

H3O

) 2P(

O)H

312

00a1

b2

c3st

r 0.

1A

D

T

DIM

ET

HY

L O

CT

AN

OIC

A

CID

390

2a1

b1

c1st

r 0.

3A

DIM

ET

HY

L P

HT

HA

LA

TE

311

90a1

b1

c1st

r 0.

3A

DIM

ET

HY

L S

UC

CIN

AT

E3

1120

a1b

1c1

str

0.3

AD

INIT

RO

TO

LU

EN

E (

mol

ten)

213

00a2

b3

c3f2

AT

Sec.

15 A

300

A40

0 A

1000

A11

00 A

1200

1,4

DIO

XA

NE

C

4H8O

2

210

40a2

b3

c3f2

T2

II B

AF T

Sec

.7 A

107

Sec

.15

A30

0 A

400

DIP

EN

TE

NE

385

0a1

b2

c2f1

str

0.3

AF

DIP

HE

NY

L1

1040

a2b

1c1

f2B

DIP

HE

NY

LA

MIN

E, R

EA

CT

ION

P

RO

DU

CT

WIT

H

2,2

,4-T

RIM

ET

HY

LP

EN

TE

NE

198

0a2

b1

c1f2

A

DIP

HE

NY

LA

MIN

ES,

AL

KY

LA

TE

D2

abou

t 1

000

a2b

1c1

f1A

DIP

HE

NY

L/

DIP

HE

NY

L E

TH

ER

M

IXT

UR

ES

110

60a2

b1

c1f2

B

DIP

HE

NY

L E

TH

ER

310

70a1

b1

c1f1

AD

IPH

EN

YL

ET

HE

R/D

IPH

EN

YL

P

HE

NY

L E

TH

ER

MIX

TU

RE

310

30

to

120

0

a1b

1c1

f1A

DIP

HE

NY

LM

ET

HA

NE

D

IISO

CY

AN

AT

E

CH

2(C

6H4N

CO

) 2

212

30a2

b3

c3f1

str

0.1

**

C

D

A

B

D

TSe

c.15

A20

6 A

300

A40

0 A

700

A10

00 A

1200

DIP

HE

NY

LO

L P

RO

PAN

E

- E

PIC

HL

OR

OH

YD

RIN

RE

SIN

3ab

out

100

0a1

b1

c1f1

str

0.1

A

DI-

n-PR

OPY

LA

MIN

E

(C

3H7)

2NH

374

1a1

b2

c2f1

str

0.3

AF

T

Sec.

15 A

203

A30

0 A

400

DO

DE

CE

NE

(al

l iso

mer

s)3

760

a1b

1c1

f1st

r 0.

1A

DO

DE

CY

L A

LC

OH

OL

383

0a1

b1

c1f1

str

0.1

A S

ec.1

5 A

1000

DO

DE

CY

LA

MIN

E/

TE

TR

AD

EC

YL

AM

INE

MIX

TU

RE

2ab

out

800

a2b

2c2

f1A

D

Sec

.15

A20

3

DO

DE

CY

LD

IME

TH

YL

AM

INE

/ T

ET

RA

DE

CY

LA

MIN

E M

IXT

UR

E2

abou

t 8

00a2

b1

c1f1

Sec

.15

A20

5

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


DO

DE

CY

L D

IPH

EN

YL

E

TH

ER

DIS

UL

PH

ON

AT

E

SO

LU

TIO

N

211

60a2

b1

c1f1

No

Sec

.15

A10

00

DO

DE

CY

L M

ET

HA

CR

YL

AT

E

(in

hibi

ted)

C

H2C

(CH

3)C

OO

(CH

2)11

CH

3

387

0a1

b1

c1A

DO

DE

CY

L/P

EN

TA

DE

CY

L

ME

TH

AC

RY

LA

TE

MIX

TU

RE

(

inhi

bite

d)

CH

2=C

(CH

3)C

OO

C12

-15

386

0a1

b1

c1A

D

DO

DE

CY

L P

HE

NO

L1

940

a2b

1c1

f2A

DR

ILL

ING

BR

INE

S,

CO

NT

AIN

ING

ZIN

K S

AL

TS

3ab

out

2000

a1b

1c1

f1st

r 0.

1N

o

Lis

t of

car

goes

A —

D (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


Lis

t of

car

goes

E —

M

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

EPI

CH

LO

RO

HY

DR

IN

C3H

5OC

l2

1180

a2b

3c3

f2II

BA

F TSe

c.15

A30

0 A

400

A12

00 S

ec.1

7 B

107

ET

HA

NO

LA

MIN

E3

1020

a1b

1c1

T2

II A

AF T

Sec.

15 A

203

2-E

TH

OX

YE

TH

YL

AC

ET

AT

E3

970

a1b

2c2

f1st

r 0.

3A

FE

TH

YL

AC

RY

LA

TE

(in

hibi

ted)

C

H2C

HC

OO

C2H

5

293

0a2

b2

c2f1

T2

II B

AF T

ET

HY

LA

MIN

E2

710

a3b

3c3

str

0.3

T2

II A

C

DF

T

Sec.

15 A

203

A30

0 A

400

B20

0 S

ec.1

7 B

107

ET

HY

LA

MIN

E S

OL

UT

ION

S (

72%

or

less

)2

810

a2b

3c3

f2st

r 0.

3A

C

F

TSe

c.15

A20

2 A

300

A40

0 A

1200

B20

0 S

ec.1

7 B

107

ET

HY

L A

MY

L K

ET

ON

E3

822

a1b

2c2

f1st

r 0.

3A

FE

TH

YL

BE

NZ

EN

E3

870

a1b

2c2

f1st

r 0.

1A

FN

-ET

HY

LB

UT

YL

AM

INE

C

2H5N

HC

H2C

H2C

H2C

H3

374

0a1

b2

c2f1

str

0.3

AF

T

Sec.

15 A

202

A30

0 A

400

ET

HY

L B

UT

YR

AT

E3

880

a1b

2c2

f1st

r 0.

3A

FE

TH

YL

CY

CL

OH

EX

AN

E3

787

a1b

2c2

f1st

r 0.

3A

FN

-ET

HY

LC

YC

LO

HE

XY

LA

MIN

E

C8H

17N

384

5a1

b2

c2f1

A

CF

T

Sec.

15 A

202

ET

HY

LE

NE

CH

LO

RO

HY

DR

IN

CH

2ClC

H2O

H2

1210

a2b

3c3

f2st

r 0.

3T

2II

AA

D

F

TSe

c.15

A30

0 A

400

A12

00 S

ec.1

7 B

107

ET

HY

LE

NE

CY

AN

OH

YD

RIN

H

OC

H2C

H2C

N3

1040

a1b

1c1

II B

A

ET

YL

EN

ED

IAM

INE

N

H2C

H2C

H2N

H2

291

0a2

b2

c2st

r 0.

3T

2II

AA

F TS

ec.7

A10

7 S

ec.1

5 A

203

ET

HY

LE

NE

DIB

RO

MID

E

CH

2BrC

H2B

r2

2170

a2b

3c3

f1st

r 0.

1N

oT

Sec

.7 A

107

Sec

.15

A30

0 A

400

Sec

.17

B10

7E

TH

YL

EN

E D

ICH

LO

RID

E

CH

2ClC

H2C

l2

1260

a2b

2c2

f2st

r 0.

1T

2II

AA

B

F

TSe

c.15

A20

5

ET

HY

LE

NE

GL

YC

OL

BU

TY

L

ET

HE

R A

CE

TA

TE

394

2a1

b1

c1st

r 0.

3A

ET

HY

LE

NE

GL

YC

OL

D

IAC

ET

AT

E3

1104

a1b

1c1

str

0.3

A

ET

HY

LE

NE

GL

YC

OL

ME

TH

YL

E

TH

ER

AC

ET

AT

E3

980

a1b

1c1

str

0.3

A

ET

HY

LE

NE

GL

YC

OL

M

ON

OA

LK

YL

ET

HE

RS

3ab

out

900

a1b

2c2

f1A

DET NORSKE VERITAS


ET

HY

LE

NE

OX

IDE

/PR

OP

YL

EN

E

OX

IDE

MIX

TU

RE

with

an

ethy

lene

o

xide

con

tent

of

not m

ore

than

30%

wt

285

0a3

b3

c3f2

str

0.3

T2

II B

A

CF

T

Sec.

15 A

300

A40

0 A

600

B20

0 C

700

ET

HY

L-3

-ET

HO

XY

PRO

PIO

NA

TE

394

0a1

b2

c2f1

str

0.3

A2-

ET

HY

LH

EX

YL

AC

RY

LA

TE

(

inhi

bite

d)

CH

2CH

CO

2CH

2CH

(C2H

5)C

4H9

389

0a1

b1

c1f1

str

0.1

T3

II B

A

2-E

TH

YL

HE

XY

LA

MIN

E

C4H

9CH

(C2H

5)C

H2N

H2

279

0a2

b2

c3f1

str

0.1

AF

T

Sec.

15 A

203

A30

0 A

400

ET

HY

LID

EN

E N

OR

BO

RN

EN

E3

900

a1b

2c3

f1st

r 0.

1A

D

F

TS

ec.1

5 A

205

A50

1

ET

HY

L M

ET

HA

CR

YL

AT

E (

inhi

bite

d)

H2C

CC

H3C

OO

C2H

5

391

0a1

b2

c2f1

T2

II A

A

DF

T

o-E

TH

YL

PHE

NO

L3

1037

a1b

1c1

f1B

2-E

TH

YL

-3-P

RO

PYL

AC

RO

LE

IN

CH

3(C

H2)

2CH

C(C

2H5)

CH

O3

850

a1b

2c2

f1II

AA

F TE

TH

YL

TO

LU

EN

E3

860

a1b

2c2

f1st

r 0.

1A

FFE

RR

IC C

HL

OR

IDE

S

OL

UT

ION

S3

1410

a2b

1c1

f1st

r 0.

3N

o S

ec.1

5 A

300

B10

0

FE

RR

IC N

ITR

AT

E/N

ITR

IC

AC

ID S

OL

UT

ION

212

90a2

b2

c2f2

str

0.3

No

TS

ec.1

5 A

300

B10

0

FLU

OR

OSI

LIC

IC A

CID

(20

% -

30%

) I

N W

AT

ER

SO

LU

TIO

N3

1200

a3b

2c2

str

0.3

Sec.

15 B

100

Sec

.17

B10

7F

OR

MA

LD

EH

YD

E S

OL

UT

ION

S

(45

% o

r le

ss)

HC

HO

311

10a1

b2

c2f1

str

0.3

T2

II B

AF T

Sec.

15 A

501

Sec

.17

B10

7

FOR

MIC

AC

ID

HC

OO

H3

1220

a1b

2c2

T1

II A

AT

Sec

.7 A

107

Sec

.15

A20

8 A

300

B10

3 to

B10

7 S

ec.1

7 B

107

FU

MA

RIC

AD

DU

CT

OF

RO

SIN

, W

AT

ER

DIS

PE

RSI

ON

310

60a1

b1

c1f1

str

0.1

No

FU

RFU

RA

L

C4H

3OC

HO

311

60a1

b2

c2f1

str

0.3

T2

II B

AF T

Sec.

15 A

501

FU

RFU

RY

L A

LC

OH

OL

311

30a1

b1

c1st

r 0.

3A

GL

UT

AR

AL

DE

HY

DE

SO

LU

TIO

NS

(50

% o

r le

ss)

HO

C(C

H2)

3CO

H

311

22a1

b1

c1N

oSe

c.15

A20

3

GL

YC

IDY

L E

ST

ER

OF

C10

T

RIA

LK

YL

AC

ET

IC A

CID

3a1

b1

c1f1

str

0.1

A

HE

PTA

NE

(al

l iso

mer

s)3

abou

t 70

0a1

b2

c2f1

str

0.3

AF

HE

PTA

NO

L (

all i

som

ers)

380

0a1

b2

c2f1

str

0.3

AF

Lis

t of

car

goes

E —

M (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


HE

PTE

NE

(al

l iso

mer

s)3

700

a1b

2c2

f1st

r 0.

3A

FH

EPT

YL

AC

ET

AT

E3

880

a1b

1c1

f1st

r 0.

1A

HE

XA

ME

TH

YL

EN

ED

IAM

INE

S

OL

UT

ION

H

2N(C

H2)

6NH

2

389

0 (

90%

s

olut

ion)

a1b

2c2

f1st

r 0.

3A

TSe

c.15

A20

3

HE

XA

ME

TH

YL

EN

EIM

INE

C

6H12

NH

288

0a2

b2

c2f1

str

0.3

A

CF

T

Sec.

15 A

202

HE

XA

NE

(al

l iso

mer

s)3

abou

t 6

60a1

b2

c2f1

str

0.3

AF

HE

XE

NE

(al

l iso

mer

s)3

670

a1b

2c2

f1st

r 0.

3A

FH

EX

YL

AC

ET

AT

E3

870

a1b

2c2

f1st

r 0.

1A

FH

YD

RO

CH

LO

RIC

AC

ID

HC

l3

1010

1

210

a3b

2c2

No

TS

ec.1

5 A

300

B10

0 S

ec.1

7 B

107

HY

DR

OG

EN

PE

RO

XID

E S

OL

UT

ION

(

over

8%

but

not

ove

r 60

%)

H2O

2

311

95a2

b3

c2f1

str

0.3

No

Sec

.15

A30

0 C

500

HY

DR

OG

EN

PE

RO

XID

E S

OL

UT

ION

S

(ov

er 6

0% b

ut n

ot o

ver

70%

)2

1195

a2b

3c2

f1st

r 0.

3N

oS

ec.1

5 A

300

A40

0

2-H

YD

RO

XY

ET

HY

L A

CR

YL

AT

E

(in

hibi

ted)

211

04a2

b3

c3f1

str

0.1

AT

Sec

.15

A30

0 A

400

2-H

YD

RO

XY

-4-(

ME

TH

YL

TH

IO)

BU

TA

NO

IC A

CID

394

0a1

b1

c1st

r 0.

3A

ISO

PHO

RO

NE

DIA

MIN

E

C10

H22

N2

392

5a1

b2

c2A

TSe

c.15

A20

3

ISO

PHO

RO

NE

DII

SO

CY

AN

AT

E

C12

H18

N2O

2

210

64a2

b3

c3f1

str

0.1

**

A

B

D

TSe

c.15

A20

6 A

300

A40

0 A

502

A70

0 A

1200

ISO

PRE

NE

(in

hibi

ted)

C

H2C

(CH

3)C

HC

H2

368

0a1

b2

c2f1

str

0.3

T3

II B

BF

Sec.

15 B

200

ISO

PRO

PA

NO

LA

MIN

E3

960

a1b

1c1

str

0.3

T2

II A

AF F

Sec.

15 A

203

ISO

PRO

PY

LA

MIN

E

(C

H3)

2CH

NH

2

269

0a2

b3

c3f2

str

0.3

T2

II A

C

DF

T

Sec.

15 A

203

A30

0 A

400

B20

0 S

ec.1

7 B

107

ISO

PRO

PY

LC

YC

LO

HE

XA

NE

380

0a1

b2

c2f1

str

0.3

AF

ISO

PRO

PYL

ET

HE

R (

inhi

bite

d)

(C

H3)

2CH

OC

H(C

H3)

2

372

3a1

b2

c2f1

AF

Sec.

15 A

700

LA

CT

ON

ITR

ILE

SO

LU

TIO

N

(80

% o

r le

ss)

299

0a3

b3

c3f2

str

0.1

A

C

D

TS

tabi

lize

d du

ring

tr

ansp

ort

Sec

.15

A30

0 A

400

A80

0 A

900

A12

00

Sec

.17

B10

7

Lis

t of

car

goes

E —

M (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


LA

UR

IC A

CID

386

0a1

b1

c1f1

str

0.1

A S

ec.1

5 A

1000

LO

NG

CH

AIN

AL

KA

RY

L

PO

LY

ET

HE

R (

C11

- C

20)

310

00

to

150

0

a1b

1c1

f1st

r 0.

3A

B

LO

NG

CH

AIN

PO

LY

ET

HE

RA

MIN

E

IN

AL

KY

L (

C2

- C

4)

BE

NZ

EN

ES

3 a

1b

2c2

f1st

r 0.

3A

F

LO

NG

CH

AIN

PO

LY

ET

HE

RA

MIN

E

IN

AR

OM

AT

IC S

OL

VE

NT

3ab

out

900

a1b

2c2

f1st

r 0.

3A

F

MA

GN

ESI

UM

LO

NG

CH

AIN

AL

KY

L

SA

LIC

YL

AT

E (

C11

+)

394

0 to

1

050

a1b

1c1

str

0.3

A

B

MA

LE

IC A

NH

YD

RID

E

HC

CH

C(O

)OC

(O)

393

4a1

b2

c2*

A

C

ME

RC

APT

OB

EN

ZO

TH

IAZ

OL

, S

OD

IUM

SA

LT

SO

LU

TIO

N3

1250

a1b

1c1

f1st

r 0.

1N

oSe

c.15

A20

2

ME

SIT

YL

OX

IDE

(

CH

3)2C

CH

CO

CH

3

385

0a1

b2

c2f1

T2

II B

AF T

ME

TA

M S

OD

IUM

S

OL

UT

ION

2ab

out

115

0a2

b1

c1f1

No

Sec

.15

A20

2

ME

TH

AC

RY

LIC

AC

ID (

inhi

bite

d)

CH

2C(C

H3)

CO

OH

310

15a1

b2

c2A

TSe

c.15

A20

7

ME

TH

AC

RY

LIC

RE

SIN

IN

E

TH

YL

EN

E D

ICH

LO

RID

E2

abou

t 1

200

a2b

2c2

f2st

r 0.

1T

2II

AA

B

F

TM

ET

HA

CR

YL

ON

ITR

ILE

(in

hibi

ted)

280

5a2

b3

c3f2

AF

T

Sec.

15 A

205

A30

0 A

400

A12

00 S

ec.1

7 B

107

ME

TH

YL

AC

RY

LA

TE

(in

hibi

ted)

C

H2C

HC

OO

CH

3

295

0a2

b2

c2f1

str

0.1

T1

II B

AF T

Sec.

17 B

107

ME

TH

YL

AM

INE

SO

LU

TIO

NS

(42

% o

r le

ss)

CH

3NH

2

286

0a2

b3

c3f2

str

0.3

A

C

D

F

TSe

c.15

A20

2 A

300

A40

0 A

1200

Sec

.17

B10

7M

ET

HY

LA

MY

L A

CE

TA

TE

386

0a1

b2

c2f1

str

0.3

AF

ME

TH

YL

AM

YL

AL

CO

HO

L3

810

a1b

2c2

f1st

r 0.

3A

FM

ET

HY

L B

UT

YR

AT

E3

890

a1b

2c2

f1st

r 0.

3A

ME

TH

YL

CY

CL

OH

EX

AN

E3

770

a1b

2c2

f1st

r 0.

3A

FM

ET

HY

LC

YC

LO

PEN

DA

DIE

NE

D

IME

R3

980

a1b

2c2

f1st

r 0.

1B

F

ME

TH

YL

DIE

TH

AN

OL

AM

INE

310

40a1

b1

c1A

Sec

.15

A20

32-

ME

TH

YL

-6-E

TH

YL

AN

ILIN

E

(C

H3)

(C2H

5)C

6H3N

H2

C1H

13N

396

9a1

b1

c1st

r 0.

3A

D

Lis

t of

car

goes

E —

M (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


2-M

ET

HY

L-5

-ET

HY

L P

YR

IDIN

E

CH

3C5H

3NC

2H5

392

0a1

b1

c1f1

str

0.1

II A

A

DSe

c.15

A20

5

ME

TH

YL

FO

RM

AT

E

HC

OO

CH

3

295

0 9

80a2

b2

c3f2

AF

T

Sec.

15 A

300

A40

0 B

200

Sec

.17

B10

7M

ET

HY

L H

EPT

YL

KE

TO

NE

382

0a1

b2

c2f1

str

0.1

AF

2-M

ET

HY

L-2

-HY

DR

OX

Y-3

-BU

TY

NE

(

CH

3)2C

(OH

)C≡C

H3

867

a1b

2c2

f1II

AA

B

D

F

TSe

c.15

A20

9

ME

TH

YL

ME

TH

AC

RY

LA

TE

(

inhi

bite

d)

CH

2C(C

H3)

CO

OC

H3

294

0a2

b2

c2f1

T2

II A

AF T

ME

TH

YL

NA

PH

TH

AL

EN

E (

mol

ten)

2ab

out

100

0a2

b2

c2f1

A

D2-

ME

TH

YL

PY

RID

INE

C

5H4N

(CH

3)2

952

a2b

3c2

f1A

FSe

c.15

A20

5 A

300

A40

03-

ME

TH

YL

PY

RID

INE

296

0a2

b3

c2f2

str

0.3

A

CF

Sec.

15 A

205

Sec

.15

A30

04-

ME

TH

YL

PY

RID

INE

C

6H7N

295

0a2

b3

c2f2

AF

T

Sec.

15 A

205

A30

0 A

400

ME

TH

YL

SA

LIC

YL

AT

E3

1180

a1b

1c1

f1st

r 0.

1A

alph

a-M

ET

HY

L S

TY

RE

NE

(in

hibi

ted)

C

6H5C

(CH

3)C

H2

391

0a1

b2

c2f1

T1

II B

A

DF

T

MO

RPH

OL

INE

(

CH

2)4O

NH

310

00a1

b2

c2f1

T2

II A

AF

Sec.

15 A

203

MO

TO

R F

UE

L A

NT

I K

NO

CK

C

OM

PO

UN

DS

(se

e T

ET

RA

ET

HY

L

LE

AD

)

Lis

t of

car

goes

E —

M (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


Lis

t of

car

goes

N —

S

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

NA

PH

TH

AL

EN

E (

mol

ten)

C

10H

8

297

5a2

b2

c2f1

T1

II A

A

NA

PH

TH

EN

IC A

CID

S2

960

a2b

1c2

f1A

NE

OD

EC

AN

OIC

AC

ID3

920

a1b

1c1

str

0.3

AN

ITR

AT

ING

AC

ID (

mix

ture

of

sul

phur

ic a

nd n

itric

aci

ds)

217

00

to

190

0

a2b

3c2

f2st

r 0.

3N

oS

ec.1

5 A

1200

B10

0 S

ec.1

7 B

107

NIT

RIC

AC

ID (

abov

e 70

%)

HN

O3

215

00a2

b3

c2f2

str

0.3

No

TS

ec.1

5 A

300

B10

0 S

ec.1

7 B

107

NIT

RIC

AC

ID (

less

than

70%

) H

NO

3

214

20a2

b2

c2f2

str

0.3

No

TS

ec.1

5 A

300

B10

0 S

ec.1

7 B

107

NIT

RO

BE

NZ

EN

E

C6H

5NO

2

212

00a2

b3

c3f2

str

0.1

T1

II A

A

DT

Sec

.7 A

107

Sec

.15

A30

0 A

400

A80

0 A

1200

o-N

ITR

OP

HE

NO

L (

mol

ten)

C

6H5N

O3

212

94

(45

°C)

a2b

3c3

f1st

r 0.

1A

D

TSe

c.15

A30

0 A

400

A11

001-

or

2-N

ITR

OP

RO

PA

NE

C

H3C

H2C

H2N

O2

310

00a1

b2

c2f1

T2

II B

AF T

NIT

RO

PRO

PA

NE

(60

%)

NIT

RO

ET

HA

NE

(40

%)

MIX

TU

RE

310

20a1

b2

c2f1

AF

T

Sec.

15 A

205

o- o

r p-

NIT

RO

TO

LU

EN

ES

C7H

7NO

2

211

60a2

b3

c3f2

str

0.1

II B

A

BT

Sec.

15 A

300

A40

0 A

1200

NO

NA

NE

(al

l iso

mer

s)3

abou

t 7

00a1

b2

c2f1

str

0.3

B

CF

NO

NE

NE

(al

l iso

mer

s)3

730

a1b

2c2

f1st

r 0.

1A

NO

NY

L A

CE

TA

TE

3 a

1b

1c1

f1st

r 0.

3A

NO

NY

L A

LC

OH

OL

(al

l iso

mer

s)3

830

a1b

1c1

str

0.3

AN

ON

YL

PH

EN

OL

294

0a2

b1

c1f1

AN

ON

YL

PH

EN

OL

PO

LY

(

4 -

12)

ET

HO

XY

LA

TE

S3

1040

to

1

070

a1b

1c1

f1st

r 0.

1A

Sec

.15

A10

00

OC

TA

NE

(al

l iso

mer

s)3

abou

t 7

00a1

b2

c2f1

str

0.3

AF

OC

TA

NO

L (

all i

som

ers)

383

0a1

b1

c1st

r 0.

3A

OC

TE

NE

(al

l iso

mer

s)3

700

a1b

2c2

f1st

r 0.

1A

Fn-

OC

TY

L A

CE

TA

TE

3 a

1b

1c1

str

0.3

AO

CT

YL

AL

DE

HY

DE

S3

830

a1b

2c2

f1st

r 0.

1A

FO

LE

FIN

MIX

TU

RE

S (

C5

- C

7)3

600

to

700

a1b

2c2

f1st

r 0.

3A

F

DET NORSKE VERITAS


OL

EFI

N M

IXT

UR

ES

(C

5 -

C15

)3

600

to

800

a1b

2c2

f1st

r 0.

1A

F

alph

a-O

LE

FIN

S

(C

6 -

C18

) M

IXT

UR

ES

3a1

b2

c2f1

str

0.1

A

OL

EU

M

H2S

O4+

SO3

2M

axi-

mum

1

980

a2b

3c3

f2st

r 0.

3N

oT

Sec

.15

A30

0 A

1200

A50

2 B

101

B10

3 to

B10

7O

LE

YA

MIN

E2

8280

a2b

2c2

f1P

AL

M K

ER

NE

L A

CID

OIL

387

0a1

b1

c1st

r 0.

3A

B

PA

RA

LD

EH

YD

E

OC

H(C

H3)

OC

HC

H3O

CH

CH

3

399

0a1

b2

c2st

r 0.

3T

3II

BA

FSe

c.17

B10

7

PE

NT

AC

HL

OR

OE

TH

AN

E

CH

Cl 2

CC

l 32

1680

a2b

2c3

f1st

r 0.

1N

oT

Sec.

15 A

300

A40

0 A

1200

1,3-

PEN

TA

DIE

NE

(in

hibi

ted)

368

0a1

b2

c2f1

str

0.3

BF

T

Sec.

15 A

900

PE

NT

AN

E (

all i

som

ers)

363

0a1

b2

c2f1

str

0.3

AF

Sec.

15 B

200

PEN

TE

NE

(al

l iso

mer

s)3

620

a1b

2c2

f1st

r 0.

3A

FSe

c.15

B20

0n-

PE

NT

YL

PR

OP

ION

AT

E3

870

a1b

2c2

f1st

r 0.

3A

FPE

RC

HL

OR

OE

TH

YL

EN

E3

1623

a1b

2c3

f1st

r 0.

1N

oT

PH

EN

OL

C

6H5O

H2

1050

a2b

3c3

f2st

r 0.

1T

1II

AA

TS

ec.7

A10

7 S

ec.1

5 A

300

A40

0 A

1000

1-P

HE

NY

L-1

-XY

LY

L E

TH

AN

E3

990

a1b

1c1

str

0.3

BP

HO

SPH

OR

IC A

CID

H

3PO

4

385

%

1690

a2b

1c1

No

Sec.

15 A

300

B10

2 to

B10

7P

HO

SPH

OR

US

(ye

llow

or

whi

te)

P4

118

20a3

b3

c2f2

CSe

c.15

C60

0 S

ec.1

7 B

107

PH

TH

AL

IC A

NH

YD

RID

E (

mol

ten)

C

6H4(

CO

) 2O

315

30a1

b2

c2st

r 0.

3T

1II

AA

D

alph

a-P

INE

NE

386

0a1

b2

c2f1

AF

beta

-PIN

EN

E3

a1

b2

c2f1

str

0.1

AF

PIN

E O

IL3

a1

b1

c1st

r 0.

3A

POL

Y(2

+)C

YC

LIC

AR

OM

AT

ICS

2ab

out

930

a2b

2c2

f1A

D

PO

LY

AL

KY

L (

C18

- C

22)

AC

RY

LA

TE

IN

XY

LE

NE

3ab

out

900

a1b

2c2

f1st

r 0.

3A

PO

LY

AL

KY

LE

NE

OX

IDE

P

OL

YO

L3

1020

to

1

060

a1b

1c2

str

0.3

A

POL

YE

TH

YL

EN

E P

OL

YA

MIN

ES

398

0a1

b1

c1st

r 0.

3A

Sec.

15 A

203

Lis

t of

car

goes

N —

S (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


PO

LY

FER

RIC

SU

LP

HA

TE

SO

LU

TIO

N3

1460

a1b

1c1

str

0.3

ASe

c.15

A21

1P

OL

YM

ET

HY

LE

NE

PO

LY

PH

EN

YL

I

SOC

YA

NA

TE

211

98a2

b3

c3f1

**

AT

Sec.

15 A

206

A30

0 A

400

A70

0P

OL

YO

LE

FIN

AM

INE

IN

AL

KY

L

(C

2 -

C4)

BE

NZ

EN

ES

3 a

1b

2c2

f1st

r 0.

3A

F

PO

LY

OL

EF

INA

MIN

E I

N

AR

OM

AT

IC S

OL

VE

NT

3 a

1b

2c2

f1st

r 0.

3A

F

PO

LY

OL

EF

IN

PH

OSP

HO

RO

SU

LP

HID

E-B

AR

IUM

D

ER

IVA

TIV

E (

C28

- C

250)

310

80

to

122

0

a1b

1c1

str

0.3

A

B

POT

ASS

IUM

CH

LO

RID

E

SO

LU

TIO

N (

10%

or

mor

e)3

abou

t 1

400

a1b

1c1

str

0.3

No

PO

TA

SSIU

M H

YD

RO

XID

E

SO

LU

TIO

N3

abou

t 1

500

a1b

1c1

str

0.3

No

Sec.

15 A

202

POT

ASS

IUM

OL

EA

TE

3ab

out

100

0a1

b1

c1f1

str

0.3

A

n-P

RO

PA

NO

LA

MIN

E

H2N

CH

2CH

2CH

2OH

398

2a1

b1

c1st

r 0.

3A

D

Sec.

15 A

203

β-P

RO

PIO

LA

CT

ON

E

C3H

4O2

211

50a2

b2

c2II

AA

T

PR

OPI

ON

AL

DE

HY

DE

C

2H5C

HO

380

0a1

b2

c2st

r 0.

3A

F

TS

ec.1

5 A

501

A12

00 S

ec.1

7 B

107

PR

OPI

ON

IC A

CID

C

H3C

H2C

OO

H3

990

a1b

2c2

T1

II A

AF

Sec

.15

A20

7 A

300

B10

3 to

B10

7 Se

c.17

B10

7P

RO

PIO

NIC

AN

HY

DR

IDE

(

CH

3CH

2CO

) 2O

310

10a1

b2

c2st

r 0.

3T

2II

AA

TSe

c.15

A20

7

PR

OPI

ON

ITR

ILE

C

3H5N

278

0a3

b3

c3f2

str

0.3

T1

II B

A

DF

T

Sec.

15 A

300

A40

0 A

800

A12

00 S

ec.1

7 B

107

n-P

RO

PY

LA

MIN

E

CH

3(C

H2)

2NH

2

272

0a2

b3

c3f2

str

0.3

T2

II A

A

DF

T

Sec.

15 A

203

A30

0 A

400

A60

0 S

ec.1

7 B

107

PR

OPY

LB

EN

ZE

NE

(al

l iso

mer

s)3

860

a1b

2c2

f1A

Fn-

PR

OP

YL

CH

LO

RID

E3

abou

t 80

0a1

b2

c2f1

A

BF

PRO

PYL

EN

E D

IME

R3

720

a1b

2c2

f1st

r 0.

3A

FPR

OPY

LE

NE

OX

IDE

C

H3C

HO

CH

2

286

0a2

b3

c3f2

T2

II B

A

CF

T

Sec

.15

A60

0 A

1200

B20

0 C

700

PRO

PYL

EN

E T

ET

RA

ME

R3

760

a1b

2c2

f1st

r 0.

1A

FPR

OPY

LE

NE

TR

IME

R3

740

a1b

2c2

f1st

r 0.

1A

F

Lis

t of

car

goes

N —

S (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


PY

RID

INE

C

H(C

HC

H) 2

N3

980

a1b

2c2

f1T

1II

AA

FSe

c.15

A20

5

RO

SIN

310

00a1

b1

c1f1

str

0.1

AR

OSI

N S

OA

P (d

ispr

opor

tiona

ted

solu

tion

)3

1050

a1b

1c1

f1st

r 0.

1A

SO

DIU

M A

LU

MIN

AT

E S

OL

UT

ION

3ab

out

100

0a1

b1

c1N

o S

ec.1

5 A

202

SO

DIU

M B

OR

OH

YD

RID

E (

15%

or

less

) /S

OD

IUM

HY

DR

OX

IDE

SO

LU

TIO

N3

abou

t 1

400

a1b

1c1

str

0.3

No

Sec.

15 A

202

SOD

IUM

CH

LO

RA

TE

SO

LU

TIO

N

(50

% o

r le

ss)

NaC

lO3

314

97a1

b1

c1f1

No

Sec.

15 A

501

SO

DIU

M D

ICH

RO

MA

TE

SO

LU

TIO

N

(70

% o

r le

ss)

Na 2

Cr 2

O7/

H2O

217

20a2

b3

c1f2

str

0.3

No

Sec.

15 A

203

A30

0 A

400

SO

DIU

M H

YD

RO

GE

N S

UL

PH

IDE

(

6% o

r le

ss)/

S

OD

IUM

CA

RB

ON

AT

E

(3%

or

less

) SO

LU

TIO

N

3ab

out

100

0a1

b1

c1f1

str

0.1

No

SO

DIU

M H

YD

RO

GE

N

SU

LPH

ITE

SO

LU

TIO

N

(45

% o

r le

ss)

313

00a1

b1

c1N

o

SO

DIU

M H

YD

RO

SU

LPH

IDE

S

OL

UT

ION

(45

% o

r le

ss)

NaS

H·2

H2O

312

57a1

b2

c2f1

str

0.1

No

TSe

c.15

A50

1

SO

DIU

M H

YD

RO

SU

LPH

IDE

/ A

MM

ON

IUM

SU

LP

HID

E S

OL

UT

ION

N

aHS

/(N

H4)

S/H

2O

212

57a2

b3

c3f2

str

0.1

AF

T

Sec.

15 A

202

A30

0 A

400

A12

00 A

501

B20

0 S

ec.1

7 B

107

SO

DIU

M H

YD

RO

XID

E

SO

LU

TIO

N (

see

caus

tic

soda

)S

OD

IUM

HY

PO

CH

LO

RIT

E

SO

LU

TIO

N (

15%

or

less

) N

aOC

L

3m

ax.

130

0a1

b2

c2st

r 0.

3N

oSe

c.15

A20

2 (

copp

er, b

rass

a

nd b

ronz

e m

ay b

e u

sed)

A50

1S

OD

IUM

NIT

RIT

E

SO

LU

TIO

N2

1270

a2b

1c1

f2st

r 0.

1N

oSe

c.15

A50

1

SO

DIU

M P

ET

RO

LE

UM

SU

LFO

NA

TE

210

50a2

b1

c1f1

str

0.1

ASO

DIU

M S

ILIC

AT

E S

OL

UT

ION

3ab

out

100

0a1

b1

c1A

SO

DIU

M S

UL

PHID

E S

OL

UT

ION

(

15%

or

less

)3

abou

t 1

000

a1b

3c2

f1st

r 0.

1N

oT

Sec.

15 A

206

A50

1S

OD

IUM

SU

LPH

ITE

SO

LU

TIO

N

(25

% o

r le

ss)

3ab

out

100

0a1

b1

c1f1

str

0.3

No

Sec.

15 A

501

Lis

t of

car

goes

N —

S (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


SO

DIU

M T

AR

TR

AT

ES

and

M

ON

O-/

DI-

SU

CC

INA

TE

SO

LU

TIO

N3

1400

a1b

1c1

A

BS

OD

IUM

TH

IOC

YA

NA

TE

S

OL

UT

ION

(56

% o

r le

ss)

3ab

out

100

0a1

b1

c1f1

str

0.1

No

ST

YR

EN

E M

ON

OM

ER

(in

hibi

ted)

C

6H5C

HC

H2

392

0a1

b1

c2f1

str

0.1

T1

II A

BF

Sec.

15 A

205

SU

LP

HO

HY

DR

OC

AR

BO

N

LO

NG

CH

AIN

(C

18+

) A

LK

YL

AM

INE

MIX

TU

RE

310

70a1

b1

c1f1

str

0.1

A

B

SU

LP

HU

R (

mol

ten)

S

318

00a3

b1

c1T

3N

oSe

c.15

C90

0

SU

LP

HU

RIC

AC

ID

H2S

O4

315

60

184

0a2

b1

c1st

r 0.

3N

oSe

c.15

A30

0 A

502

B10

0 C

800

SUL

PH

UR

IC A

CID

(sp

ent)

315

90a2

b1

c1st

r 0.

3N

oSe

c.15

A30

0 A

502

B10

0 C

800

Lis

t of

car

goes

N —

S (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


Lis

t of

car

goes

T —

Z

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

TA

LL

OIL

, CR

UD

E A

ND

DIS

TIL

LE

D3

1000

a1b

1c1

f1st

r 0.

1A

Sec

.15

A10

00T

AL

L O

IL F

AT

TY

AC

ID,

BA

RIU

M S

AL

T3

1150

a1b

1c1

f1st

r 0.

1A

TA

LL

OIL

FA

TT

Y A

CID

(re

sin

acid

s le

ss th

an 2

0%)

310

00a1

b1

c1st

r 0.

3A

TA

LL

OIL

SO

AP

(di

spro

port

iona

ted)

s

olut

ion

310

40a1

b1

c1f1

str

0.1

A

TE

TR

AC

HL

OR

OE

TH

AN

E

CH

Cl 2

CH

Cl 2

315

90a1

b2

c3f1

str

0.1

No

TS

ec.1

5 A

300

A40

0 A

1200

1,1,

2,2-

TE

TR

AC

HL

OR

OE

TH

YL

EN

E

(se

e PE

RC

HL

OR

OE

TH

YL

EN

E)

TE

TR

AE

TH

YL

EN

E P

EN

TA

MIN

E

NH

2(C

H2C

H2N

H) 3

CH

2CH

2NH

2

310

00a1

b1

c1A

Sec.

15 A

202

TE

TR

AE

TH

YL

LE

AD

and

T

ET

RA

ME

TH

YL

LE

AD

in a

nti-

knoc

k c

ompo

unds

(

C2H

5)4P

b an

d (C

H3)

4Pb

115

00

170

0a3

b3

c3f2

T4

II A

A

CF

T

Sec.

15 A

300

A40

0 A

800

A12

00 S

ec.1

7 B

107

TE

TR

AH

YD

RO

FUR

AN

(

C2H

4)2O

389

0a1

b2

c2T

3II

BA

F TT

ET

RA

HY

DR

ON

APH

TH

AL

EN

E3

980

a1b

1c1

str

0.3

AT

ET

RA

ME

TH

YL

BE

NZ

EN

E

(al

l iso

mer

s)3

840

to

990

a1b

1c1

A

TO

LU

EN

E3

870

a1b

2c2

f1st

r 0.

3A

FT

OL

UE

NE

DIA

MIN

E

CH

3C6H

3(N

H2)

2

210

00a2

b3

c3f2

str

0.3

A

DT

Sec.

15 A

202

A30

0 A

400

A12

00 S

ec.1

7 B

107

TO

LU

EN

E D

IIS

OC

YA

NA

TE

C

H3C

6H3(

NC

O) 2

212

10a2

b3

c3f2

str

0.3

T1

II A

**

A

C

D

F

TSe

c.15

A20

5 A

300

A40

0 A

700

A12

00 S

ec.1

7 B

107

o-T

OL

UID

INE

C

H3C

6H4N

H2

210

08a2

b3

c3f2

str

0.3

A

CT

Sec

.15

A30

0 A

400

A12

00

TR

IBU

TH

YL

PH

OS

PHA

TE

398

0a1

b1

c1f1

str

0.1

A1,

2,4-

TR

ICH

LO

RO

BE

NZ

EN

E

C6H

3Cl 3

214

47a2

b2

c2f1

str

0.1

A

BT

Sec

.15

A10

00

1,1,

1-T

RIC

HL

OR

OE

TH

AN

E3

1460

a1b

1c1

f1st

r 0.

3A

1,1,

2-T

RIC

HL

OR

OE

TH

AN

E

CH

Cl 2

CH

2Cl

314

40a1

b2

c3f1

str

0.3

No

T

TR

ICH

LO

RO

ET

HY

LE

NE

C

HC

l:CC

l 23

1460

a1b

2c3

f1st

r 0.

3T

2II

AN

oT

Sec.

15 A

300

A40

0 A

501

A12

00

DET NORSKE VERITAS


1,2,

3-T

RIC

HL

OR

OP

RO

PA

NE

C

H2C

lCH

ClC

H2C

l2

1389

a2b

3c3

f2st

r 0.

3B

D

TS

ec.1

5 A

300

A12

00 A

400

A50

11,

1,2-

TR

ICH

LO

RO

- 1

,2,2

-TR

IFL

UO

RO

ET

HA

NE

3ab

out

140

0a1

b1

c1st

r 0.

3N

o

TR

ICR

ES

YL

PH

OS

PH

AT

E

(co

ntai

ning

less

than

1

% o

rtho

-iso

mer

)

211

60a2

b1

c1f1

A

TR

ICR

ES

YL

PH

OS

PH

AT

E

(co

ntai

ning

1%

or

mor

e or

tho-

isom

er)

111

60a2

b3

c2f2

B S

ec.1

5 A

300

A40

0

TR

IDE

CA

NO

IC A

CID

385

0a1

b1

c1f1

str

0.1

A S

ec.1

5 A

1100

TR

IET

HA

NO

LA

MIN

E

(C

H2C

H2O

H) 3

N3

1130

a1b

1c1

II A

ASe

c.15

A20

2

TR

IET

HY

LA

MIN

E

(C

2H5)

3N2

720

a2b

2c3

str

0.3

T2

II A

A

CF

T

Sec.

15 A

203

A30

0 A

400

Sec

.17

B10

7T

RIE

TH

YL

BE

NZ

EN

E2

860

a2b

1c1

f1A

TR

IET

HY

LE

NE

TE

TR

AM

INE

H

2NC

H2(

CH

2NH

CH

2)2C

H2N

H2

398

0a1

b1

c1T

2II

AA

Sec.

15 A

202

TR

IET

HY

LP

HO

SPH

ITE

(

CH

3CH

2)3P

O3

397

0a1

b2

c3f1

str

0.1

A

BF

T

TR

IISO

PR

OP

YL

AT

ED

PH

EN

YL

P

HO

SPH

AT

ES

211

00

to

140

0

a2b

1c1

f1A

TR

IME

TH

YL

AC

ET

IC A

CID

(

CH

3)3C

CO

OH

390

5a1

b2

c2A

Sec

.15

A20

7 B

101

B10

3 -

107

TR

IME

TH

YL

AM

INE

SO

LU

TIO

N

(30

% o

r le

ss)

290

0a2

b3

c3f2

A

CF

T

Sec.

15 A

202

B20

0 S

ec.1

7 B

107

TR

IME

TH

YL

BE

NZ

EN

E (

all i

som

ers)

388

0a1

b2

c2f1

AF

TR

IME

TH

YL

HE

XA

ME

TH

YL

EN

E-

DIA

MIN

E (

2,2,

4- a

nd 2

,4,4

-iso

mer

s)

C9H

22N

2

386

7a1

b1

c1f1

A

CS

ec.1

5 A

202

A12

00

TR

IME

TH

YL

HE

XA

ME

TH

YL

EN

E

DII

SOC

YA

NA

TE

(2,

2,4-

and

2

,4,4

-iso

mer

s)

C11

H18

N2O

2

210

17a2

b3

c3f1

str

0.1

**

A

C

TSe

c.15

A30

0 A

400

A50

2

2,2,

4-T

RIM

ET

HY

L-

1,3

-PE

NT

AN

ED

IOL

- 1-

ISO

BU

TY

RA

TE

395

0a1

b1

c1st

r 0.

3A

TR

IME

TH

YL

PH

OSP

HIT

E

(C

H3O

) 3P

310

00a1

b2

c3f1

A

DF

T

1,3,

5-T

RIO

XA

NE

311

70a1

b2

c2f1

A

DF

TR

IXY

LY

L P

HO

SPH

AT

E1

1150

a2b

1c1

f2A

Lis

t of

car

goes

T —

Z (

Con

tinu

ed)

Nam

e an

d ch

emic

al fo

rmul

aSh

ip

type

DT

ank

type

Gau

ging

sy

stem

Tan

k ve

nt s

ys-

tem

Ove

r-

flow

con

-tr

ol

Car

go

stri

ppin

gE

lect

rica

l equ

ip-

men

tF

ire

pro-

tec-

tio

n

Vap

our

haza

rdR

emar

ks s

peci

al r

equi

rem

ents

Cla

ssG

roup

DET NORSKE VERITAS


TU

RPE

NT

INE

386

0a1

b2

c2f1

str

0.1

AF

UN

DE

CA

NO

IC A

CID

389

0a1

b1

c1st

r 0.

1A

1-U

ND

EC

EN

E3

700

a1b

1c1

f1st

r 0.

1A

UN

DE

CY

L A

LC

OH

OL

383

0a1

b1

c1f1

str

0.1

AS

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