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IS 940:2003

=mwfi~l~

Indian StandardPORTABLE FIRE EXTINGUISHER, WATER TYPE

(GAS CARTRIDGE) -SPECIFICATION(Fourh Revision)

ICS 33.220.10

0 BIS 2003BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARGNEW DELHI 110002

May 2003 Price Group 4

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Fire Fighting Sectional Committee, CED 22

FOREWORDThis Indian Standard ( Fourth Revision) was adopted by the Bureau of Indian Standards, after the draft finalizedby the Fire Fighting Sectional Committee had been approved by the Civil Engineering Division Council.Portable fire extinguisher, water type (gas cartridge) is one of the types of the tire extinguishers used as first-aidfire fighting appliance. This type of extinguisher is suitable for fighting fires in Class A fires, that is, in wood,textiles, paper, etc. The details in regard to maintenance of this appliance in efticient condition are given inIS 2190 Code of practice for selection, installation and maintenance of portable first-aid fire extinguishers (thirdrevision).This standard was first published in 1961 and subsequently revised in 1972, 1976 and 1989. In this revision, theprincipal modifications made are in respect of providing cap having squeeze grip type COZgas cartridge puncturemechanism and also on-off control discharge. Squeeze grip type cap has following advantages over the conventionalcap:

a) It is safe in operation as the operation need not hit the knob with force by hand.b) The discharge can be halted and restarted at the will of the operator.c) It has built in operation lever and carrying handle.

Other modifications made are as follows:a) Stainless steel body is included to provide resistance from corrosion and good aesthetic appearance.b) Internal plastic lining of the extinguisher to avoid corrosion in usage.c) Type test for leaded tin alloy coating and stainless steel bodies have been incorporated.d) Epoxy powde- coating for external surface is included to improve the scratch hardness, life and aesthetics.e) Provision of thickness of body in accordance with bursting formulae.

In addition to above various provisions have been updated which are based on experience gained in the use of thisappliance in the past.A scheme for Iabelling environment friendly products known as ECO-Mark has been introduced at the instanceof the Ministry of Environment and Forests (MEF), Government of India. The ECO-Mark would be administeredby the Bureau of Indian Standards (BIS) under the BLSACI,1986 as per the Resolution No. 71 dated21 February1991 and No. 425 dated 28 October 1992 published in the Gazette of the Government of India. For a product to beeligible for marking with ECO logo, it shall also carry the 1S1Mark of BIS besides meetinq additional optionalenvironment friendly requirements. For this purpose, the Standard Mark of BIS would be a single mark being acombination of the 1S1Mark and the ECO logo. Requirements to be satisfied for a product to quali~ for the BISStandard Mark for ECO friendliness are optional; manufacturing units are free to opt for the IS Mark alone also .This clause is based on the Gazette Notification No. 160 dated 1April 1999 for fire extinguishers as environmentfriendly products published in the Gazette of the Government of India.For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance withIS 2:1960 Rules for rounding off numerical values (revised. The number of significant places retained in therounded off value should be the same as that of the specified value in this standard.

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IS 940:2003Indian Standard

PORTABLE FIRE EXTINGUISHER, WATER TYPE(GAS CARTRIDGE) -SPECIFICATION

(Fourth Revision )1 SCOPEThis standard lays down the requirements regardingprinciple, capacity, material, shape, design,construction, anti-corrosive treatment and tests ofportable water type fire extinguisher.2 REFERENCESThe standards given in Annex A contain provisionswhich through reference in this text, constituteprovisions of this standard. At the time of publication,the editions indicated were valid. All standards aresubject to revision, and parties to agreements based onthis standard are encouraged to investigate thepossibility of applying the most recent editions of thestandards given in Annex D.3 PRINCIPLE AND DESIGN3.1 The extinguisher shall be upright type, thusoperated by holding the extinguisher upright andpiercing the gas cartridge by applying pressure onplunger or by pressing the squeeze grip therebydischarging the contents.3.2 During the operation, the jet, where possible,should be able to strike the burning surface and engulffire.4 CAPACITYThe liquid capacity of the extinguisher when filled tothe specified level indicated in exterior ofthe body shallbe 9.0 + 0.5 litre.5 MATERIALThe materials for the construction of various parts ofthe fire extinguisher shall be as given in Table 1.6 SHAPEThe shape of the body shall be cylindrical with anoutside diameter of 175 + 5 mm.7 CONSTRUCTION7.1 General7.1.1 The cylinder shall be of welded constructionhaving cold or hot drawn cylindrical portion with hemi-spherical ellipsoidal or torispherical ends welded to itor two halves (upper half shorter) cold or hot drawnhaving dome and bottom dish of hemi-spherical or

ellipsoidal or torispherical and circumferentially weldedtogether. A cylindrical skirt having minimum 25 mmheight shall bewelded to the bottom dish. The weldingshall be done by an electric arc welding process andshall conform to IS 2825.7.1.2 Where carrying handle and/or supporting fittingsare fitted to the body, these shall be either welded orbrazed. The carrying handle shall be made of mild steelor stainless steel rod not less than 6 mm in diameter orfabricated out of mild steel or stainless steel sheets ofsame thickness as the body and the clamp shall be ofmild steel or stainless steel thickness of 3 mm,minimum.7.2 BodyThe material used in the construction of extinguisherbodies shall be weldable. The filler materials shall becompatible to the body steel to give good welds.Minimum wall thickness of the body shall be calculatedusing the formula:

a) For carbon steel bodies,D +().7* 360

b) For austenitic stainless steel bodies,D~= + 0.3600

wheret = minimum thickness, in mm; andD = external diameter of the body, in mm.

7.3 Neck RingThe neck ring of 57 mm (G 2%) for bang on type andof 63 mm (G 2Y.) for squeeze grip type shall be firmlysecured by brazing or welding. A parallel screw threadfor the attachment of cap shall be not less than 16 mmineffective length and the thread shall be in accordancewith IS 2643 with Class A tolerance.7.4 Syphon Tube and StrainerThe syphon tube with strainer at free end shall be fittedinside the body. In case of squeeze grip type, syphontube shall be fitted in the cap.

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IS 940:2003Table 1 Material of Construction of Various Parts of Fire Extinguisher

( Clause 5 )S1No.(1)

i)

ii)

iii)

iv)

v)

vi)

vii)

viii)

ix)x)

xi)

xii)xiii)xiv)

xv)

xvi)

xvii)

xviii)

Component(2)

Body

Syphon tube

Neck ring

Cap

Cap body

Check nut

Cap washer (0 ring)

Cartridge holder, knob,discharge fittings and plunger

PiercerPlunger

Squeeze grip handle

SpringSafety clipSnifter valve

Nozzle and discharge fittings

Strainer

Hose

Gas cartridge

Materials(3)

O Mild steel sheetii) Stainless steel sheeti) Brass tubeii) Stainless steel tubeiii) Plastic pipei) Lead tin bronzeii) Seamless mild steel

iii) Stainless steeli) Aluminium die-castii) Brassiii) Leaded tin-bronzei) Leaded tin-bronzeii) Stainless steeliii) Ahrminium die-casti) Leaded tin bronzeii) Brassiii) Stainless steel

Rubber

O Brassii) Lead tin bronzeiii) Stainless steelStainless steeli) Stainless steelii) Brassi) Mild steelii) Ahsminiumiii) PlasticSpring steel wireSteeli) Brassii) Stainless steeli) Brassii) Lead tin bronzeiii) Plasticiv) Ahsminiumi) Bass sheetii) Plasticiii) Stainless steel sheetBraided robber/plastic

Relevant Indian Standards(4)

Minimum Grade D of IS 5131S 5522Alloy No. 2 of IS 407IS 6913IS 4985Grade LTB2of1S318Seamless mild steel tubes having srdphur andphosphoms not exceeding 0.05 percentIS 6913IS 11804Grade FLB of IS 6912Gmde LTB20fIS 318Grsde LTB20fIS 318Grade 1 of IS 3444IS 617Grade LTB 2 of IS 318Type. 1 of IS 319IS 6529IS 937 conforming to requirement of hardnessas applicable to Type 3 of IS 5382 and rdsoacid and alkali resistant test (see Note)Type 1 of IS319Gmde LTB20fIS318IS 6528IS 6528IS 6528Type 1 of LS3191s513IS 7371S 7328Grade I of IS 4454 (Part 1)Grade 1 of IS 2507Type 1 o f IS 319Grade 04Cr 18 Ni10 of 1S6603Type 1 oflS 319Grade LTB 2 of IS 318IS 73281S617GmdeCuZn37of1S4101S 73281S 5522Shall have a minimum bursting pressure of 4MN/m (40 kgf7cm2)IS 4947

NOTE When a piece of 2.5 cm cut from any portion is dipped in 20 percent sulphuric acid 5 percent sodium hydroxide solution for30 min. there shali be no sign of corrosion d&age.

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7.5 Cap7.5.1 For fixing the cap to the neck the cap shall bescrewed on the body up to a minimum of 16 mmeffective length. The size of parallel thread shall suitthe neck ring (see 7.3). At least 3 holes of not less than2.5 mm diameter shall be drilled through the threadedportion of the cap to form vents. The centres of thevent holes shall be 6.5 mm, Mm apart from the exposedface of the cap joint washer.7.5.2 For squeeze grip type, a cap having squeeze griptype COz gas cartridge puncture mechanism and alsoon/off control discharge shall be provided. A swivelcoupler nut shall be provided to screw up the cap onthe neck ring.7.6 NozzleThe design of the nozzle and the area of the orificeshall be such that it satisfies the performancerequirements given in 10.3. The nozzle may be fixedeither to the body or to a hose or to cap.7.6.1 The hose (if provided) shall be of not less than8 mm bore and length not less than 600 mm.7.7 Expansion SpaceAn air space shall be provided in the body above thespecified liquid level which shall be of sufficientvolume to ensure that when the discharge nozzle istemporarily closed and the extinguisher put intooperation at a temperature of 27 * 5 C, the internalpressure exerted shall not exceed 1.5 MN/m2.7.8 Snifter Valve (Breather Device)A snifter valve shall be fitted to extinguisher. Thedesign of the snifter valve shall be such that in thevariation of atmospheric temperature within + 10 C,there shall not be any spouting of liquid through thenozzle.7.9 Gas Cartridge and Cartridge HolderA cartridge holder shall be provided and fitted insidethe cap in such a way that the cartridge seal piercingmechanism passes through its centre and shall puncturethe cartridge clean when the cartridge is fitted to thisholder. The threads shall be provided in the holder ,and these shall correspond to the threads of gas cartridge(see IS 4947). Pot holes shall also be provided in thecartridge holder. The maximum size of gas cartridgeshall be 60 g.7.10 Plunger Rod and Piercing MechanismThe plunger rod shall be of such a length that it has aminimum stroke of 7 mm. A spring load piercingdevice shall be provided in the plunger for piercing theseal of the gas cartridge when fitted to the cartridgeholder. The puncturing end shall be designed so as toensure a clear opening in the cartridge sealwhen pierce

IS 940:2003is operated. A safety clip shall be provided to preventaccidental operation ofthe piercing mechanism.8 ANTI-CORROSIVE TREATMENT8.1 All internal surfaces of the mild steel body shall becompletely coated with plastic or rubber lining of aminimum thickness ofO.5mm. The internal lining shallbe subjected to the following test.8.2 Test for Plastic Lining

a) Test for Adhesion of Plastic Lining (Type Test)Subject the unfilled extinguisher to a pressure15 kgf/cm2 and store for 120 * 4 hat 28 + 5C.Release the pressure and examine theextinguisher internally for cracking, separationfrom the wall of the body or lifting of the lining,and bubbles between the lining and the body.

b) Test for Continuity of Plastic LiningFill the extinguisher body to within 10 mm ofthe top of the lining with a 1 percent (m/m)solution of sodium chloride in water containingsufficient hydrocarbon surfactant to reduce thesurface tension of the solution to less than 40MN/m. Check the lining for continuity by theapplication of a 500 + 50M insulation resistancetest across the lining through connections madeto the metal body and to an electrode introducedinto the solution in the extinguisher body.

8.3 Phosphating in accordance with the provisions ofIS 3618 maybe applied on the external surface of thebody as an alternative.8.4 Epoxy polyester powder coating of 50 micronthickness may also be applied on internal and externalsurfaces of the mild steel body.9 PAINTING9.1 Each extinguisher body except stainless steel bodyshall be painted Fire Red. or Post OffIce red as pershade 536 or 537 of IS 5, either by epoxy powdercoating or synthetic enamel paint. Stainless steel bodyshall be buffed.9.2 A large size picture showing a man operating theextinguisher in the correct manner shall be shown onthe body of the extinguisher (see 3.2).9.3 The extinguisher shall be marked with the letterCA indicating the suitability of the unit for Class Afires as laid down in IS 2190. The letter A shall be2.5 + 0.5 cm in height, painted in black colour centrallyinside an equilateral triangle of side 5.0+ 0.5 cm. Thetriangle shall be coloured golden yellow.9.4 The paint shall conform to IS 2932.10 TEST REQUIREMENT10.1 The extinguisher body and the cap assembly

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IS 940:2003shall be tested to an internal hydraulic pressure of 3.0MN/cm2(30kgf/cm2) for aperiod of2min. Duringthe test it shall not show any sign of leakage.NOTE The testing maybe done either with cap or without capand in the latter case, the cap shall be tested separately.

10.2 In case of hydraulic burst test for the extinguisher,mechanical failure shall not occur at a pressure lessthan 4.5 MN/m2 (45 kgf/cm2).NOTE The test shall be done through discharge fittings withthe cap assembly.

10.3 When the extinguisher is set in operation undernormal temperature conditions of 27+ 5C with astream starting in horizontal direction in wind-freecondition, the water shall be expelled in the form ofjetwhich shall maintain an effective throw ofnot less than6 m for the minimum period of 60 s provided that atleast 95 percent of water is discharged from theextinguisher within the maximum period of 120s.10.4 The fire extinguisher after subjecting to the testslaid down in 10.1 and 10.3 shall be thoroughly cleanedwith water, water shall then be completely drained offand the extinguisher retained in this condition for 24 h.At the end of this period, the interior shall be free fromany trace of rust.11 OPTIONAL REQUIREMENTS FOR

ECO-MARK11.1 General Requirements11.1.1 Any fire extinguisher having BIS StandardMark qualifies for consideration of ECO-Mark.1I.1.2 The products manufacturer must produce theconsent clearance as per provision of the Water(Prevention & Control of Pollution Act, 1974), Water(Prevention & Control ofPollution CessAct, 1977) andAir (Prevention & Control of Pollution Act, 1981)respectively, alongwith authorization if required underEnvironment (Protection) Act, 1986 and the rules madethereunder to the Bureau of Indian Standards whileapplying for ECO-Mark.11.1.3 The product may display in brief the criteriabased on which the product has been awarded ECO-Mark.11.1.4 The product may carry alongwith instructionsfor proper use so as to maximize product performancewith statutory warning, if any, minimize waste andmethod of safe disposal.11.1.5 The material used for product packaging(excluding refills) shall be recyclable, reusable orbiodegradable.11.1.6 The product must display a list of criticalingredients in descending order of quantity present inpercent by weight. The list of such critical ingredientsshall be identified by the Bureau of Indian Standards.

11.2 Specific Requirements11.2.1 The fweextinguisher shall not contain any ozonedepleting substance (ODS) relevant to fire extinguishersindustry as identified under the montreal protocol (seeAnnex B).11.2.2 Gas based extinguishing media once dischargedin the atmosphere should not have atmospheric lifetimeof more than a year (see Annex C)11.2.3 Chemical used should not have global warmingpotential (see Annex D)11.2.4 The metallic body and other metal parts of thefire extinguishers shall be free of lead or lead alloys.11.2.5 The coating used for the metallic part shall notbe formulated with mercury and mercury compoundsor be tinted with pigments of lead, cadmium, chromiumVI and their oxides. Excluded are natural impuritiesentailed by the production process up to the amount0.1 percent by weight which are contained in the rawmaterial.NOTECOl extinguishers may be permitted till suitablesubstitutes are available.

12 MARKING12.1 Each extinguisher shall be clearly andpermanentlymarked with the following information in addition tothat given in 9.2 and 9.3:

a)b)c)d)e)f)g)

Manufacturers name or trade-mark, if any;Method of operation in prominent letters;The words Water type (Gas cartridge) inprominent letters;The size of gas cartridge used;Liquid level to which the extinguisher is to becharged;The words Tested to a hydraulic pressure 3 MN/mz(30 kgf/cm2)-;andYear of manufacture.

12.2 BIS Certification MarkingThe extinguisher may also be marked with the StandardMark.12.2.1 The use of the Standard Mark is governed bythe provisions of the Bureau of Indian StandardsAct, 1986 and the Rules and Regulations madethereunder. Details of conditions under which a licencefor the use of the Standard Mark may be granted tomanufacturers or producers maybe obtained from theBureau of Indbn Standards.13 SAMPLING AND CRITERIA FOR

CONFORMITYThe details of sampling and criteria for conformity isgiven in Amex E.

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1S 940:2003

IS No.5:1994318:1981319:1989

407:1981410:1977513:1994617:1994

737:1986

937:1981

2190:

2507:

992

975

2643:1999

2825:19692932:1993

ANNEX A( Clause 2 )

LIST OF REFERRED INDIAN STANDARDS

TitleColours for ready mixed paints andenamels ~otfrth revision)Specification for leaded tin bronzeingots and castings (secorzdrevision)Free cutting leaded brass bars, rodsand sections Specification ~ourthrevision)Specification for brass tubes forgeneral purposes (third revision)Cold rolled brass sheet, strip and foil(third revision)Cold rolled low carbon steel sheetsand strips @rth revision)Aluminium and aluminium alloyingots and castings for generalengineering purposes (thirdrevision)Wrought aluminium and aluminiumalloy sheet and strip for generalengineering purposes (thirdrevision)Specification for washers for waterfittings for fire fighting purposes(second revision)Selection, installation andmaintenance of first-aid fireextinguishers Code of practice(third revision)Cold rolled steel strip for springs@-st revision)Pipe threads where pressure-tightjoints are not made on the threads Dimensions, tolerance and desig-nation (second revision)Code of unfired pressure vesselsEnamel, synthetic, exterior (a) under-coating, (b) finishing Specification(second revision)

IS No.3444:1999

3618:1966

4454(Part 1): 2001

4947:19854985:2000

5382:1985

5522:19926528:19956529:19966603:19726912:19856913:19737328:1992

11804:1986

TitleCorrision resistant high alloy steeland nickel base casting for generalapplications Specification (thirdrevision)Specification forphosphate treatmentof iron and steel for protectionagainst corrosionSpecification for steel wires formechanical springs:Patented and cold drawn steelwires Unalloyd (third revision)Specification for gas cartridge for usein fre extinguisher (secondrevision)Unplasticized PVC pipes for potablewater supplies Specification(third revision)Specification for rubber sealing ringsfor gas mains, water mains andsewers (first revision)Stainless steel sheets and strips forutensils (second revision)Stainless steel wire (/irst revision)Steelness steel blooms, billets andslabs for forging (first revision)Stainless steel bars and flatsSpecification (jlrst revision)Copper and copper alloy forgingstock and forgings (first revision)Stainless steel tubes for the food andbeverage industryHigh density polyethylene materialsfor moulding and extrusion Specification (first revision)Code of practice for manufacture ofaluminium alloy pressure diecastings

http://../link/31to60/318.Bishttp://../link/31to60/319.Bishttp://../link/31to60/407.Bishttp://../link/31to60/410.Bishttp://../link/31to60/513.Bishttp://../link/61to88/617.Bishttp://../link/61to88/737.Bishttp://../link/89to99/937.Bishttp://../link/15to30/2190.Bishttp://../link/15to30/2507.Bishttp://../link/15to30/2190.Bishttp://../link/15to30/2507.Bishttp://../link/15to30/2825.Bishttp://../link/15to30/2932.Bishttp://../link/31to60/3444.Bishttp://../link/31to60/3618.Bishttp://../link/31to60/4454_1.Bishttp://../link/31to60/4947.Bishttp://../link/31to60/4985.Bishttp://../link/31to60/5382.Bishttp://../link/31to60/5522.Bishttp://../link/61to88/6528.Bishttp://../link/61to88/6529.Bishttp://../link/61to88/6603.Bishttp://../link/61to88/6912.Bishttp://../link/61to88/6913.Bishttp://../link/61to88/7328.Bishttp://../link/11/11804.Bishttp://../link/11/11804.Bishttp://../link/61to88/7328.Bishttp://../link/61to88/6913.Bishttp://../link/61to88/6912.Bishttp://../link/61to88/6603.Bishttp://../link/61to88/6529.Bishttp://../link/61to88/6528.Bishttp://../link/31to60/5522.Bishttp://../link/31to60/5382.Bishttp://../link/15to30/2932.Bishttp://../link/15to30/2825.Bishttp://../link/15to30/2507.Bishttp://../link/15to30/2190.Bishttp://../link/89to99/937.Bishttp://../link/61to88/737.Bishttp://../link/31to60/4985.Bishttp://../link/31to60/4947.Bishttp://../link/31to60/4454_1.Bishttp://../link/31to60/3618.Bishttp://../link/31to60/3444.Bishttp://../link/61to88/617.Bishttp://../link/31to60/513.Bishttp://../link/31to60/410.Bishttp://../link/31to60/407.Bishttp://../link/31to60/319.Bishttp://../link/31to60/318.Bis

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IS 940:2003ANNEX B

( Clause 11.2.1 )LIST OF OZONE DEPLETING SUBSTANCES (ODS) CONTROLLED

BY MONTREAL PROTOCOLTrade Name ODP

(1)HaIon 1211HaIon 1301HaIon 2402CFC11CFC 12CFC- 113CFC 114CFC 115ccl,C,H,Cl,CFC13CFC 111CFC 112CFC211CFC212CFC-213CFC214CFC215CFC216CFC-217Methyl Bromide

(2)3.0

10.06.01.01.00.81.00.61.10.11.01.01.01.01.01.01.01.01.0I.00.6

NOTE ODP values are relative to CFC-11 which has been assigned arbitrary value of 1.0.

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IS 940:2003ANNEX C

( Clause11 .2.2)LIST OF ATMOSPHERIC LIFE TIME OF GAS-BASED AGENTS

Trade Name(1)

Halon- 13001NAFS 111FE 25FE241FE 36FE 13FM 200CEA 410Halon 1301InergenArgoniteArgon

Designation(2)

(CF31)HCFC (Blend A)HCFC -125FCFC -124HFC-227 faHFC-23HFC-227 eaFC-3-1-1OHalon 1301IG 541IG 55IGO1

Atmospheric Lfe Time (Year)(3)

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IS 940:2003ANNEX E( Clause 13 )

SAMPLING AND CRITERIA FOR CONFORMITY

E-O GENERALE-O.I The risk involved in failure of a fweextinguisherto work when needed is extremely large. Fireextinguisher, therefore, ought to have a high degree ofreliability of performance during the entire specifiedperiod of its service. It can be achieved only throughadequate design and control in all stages ofmanufactureand assembly.E-1 SAMPLINGE-1.l LotAll portable fire extinguishers of the same type, shape,design and capacity produced by the samemanufacturerfrom similar materials under ahnost identical conditionsof manufacture shall be grouped together to constitutea lot.E-1.2 Each lot shall be considered individually for thepurpose of evaluation of quality in accordance with thisspecification.E-1.2.1 The number of samples for testing to be takenat random from a lot and the criteria for conformityshall be as given in E-1.2.2 and E-1.2.3.E-1.2.2 For each lot, a number of samples as indicatedin CO12 of Table 2 shall be selected at random.E-1 .2.3 They shall be examined visually as far aspossible in respect of requirements specified in 3 to 9except 7.7 and then in respect of hydraulic pressuretest (see 10.1) and corrosion test (see 10.4).

Table 2 Sample Size for Lots Produced UnderQuality Control System(Clause E -1.2.2)

S1 No. No. of Items Sample Sizein the Lot

(1) (2) (3)i) up to 25 3ii) 26 to 50 5iii) 51 to 100 8iv) 101 to 200 8 percent

E-1.2.4 All the samples tested shall pass these tests forthe lot to be declared to conform to these requirements.E-1.2.5 For expansion test as per 7.7, one sample shallbe tested from each lot.E-1.2.6 In respect of performance test (see 10.3) andexpansion space (see 7.9 ), one sample shall be testedfor these properties and the sample shall pass these testsfor the lot to be declared to conform to this requirement.E-1.2.7 In respect of bursting pressure (see 10.2), typetest shall be done and this could conform to therequirements laid down in the specification.E-1.2.8 In the absence of a certificate from manufac-turer about the conformity of various components( see 5.1 ) to this specification from a sample fireextinguisher, one item each shall b.e taken separatelyand examined individually with respect to the relevantrequirement of this specification. These shall constitutethe type tests.

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Bureau of Indian StandardsBIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmoniousdevelopment of the activities of standardization, marking and quality certification of goods and attending toconnected matters in the country.CopyrightBIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course of implementingthe standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating tocopyright be addressed to the Director (Publication), BIS.Review of Indian StandardsAmendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue ofBIS Catalogue and Standards: Monthly Additions.This Indian Standard has been developed from Dot: No. CED 22 ( 5870 ).

Amendments Issued Since PublicationAmend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDSHeadquarters:Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telegrams: ManaksansthaTelephones: 23230131,23233375,2323 9402 (Common to all offices)Regional Offices: TelephoneCentral :Eastern :Northern :Southern :Western :Branches :

Manak Bhavan, 9 Bahadur Shah Zafar Marg { 23237617NEW DELHI 110002 232338411/14 C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi

{23378499,23378561

KOLKATA 700054 23378626,23379120SCO 335-336, Sector 34-A, CHANDIGARH 160022 {

603843609285

C.I.T. Campus, IV Cross Road, CHENNAI 600113 {22541216,2254144222542519,22542315

Manakalaya, E9 MIDC, Marol, Andheri (East){

28329295,28327858MUMBAI 400093 28327891,28327892AHMEDABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD.GHAZIABAD. GUWAHAT1. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR.NALAGARH. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHAPATNAM.

Printed at Simco Printing Press, Delhi