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है”ह”ह

IS 1899 (1977): Blow Lamps [MED 26: Mechanical Engineering]

IS : 1899 - 1977 (Reaffiremed 2007)

(Reaffirmed 2001) Edition 3.1

(1982-08) Indian Standard

SPECIFICATION FOR BLOW LAMPS ( Second Revision )

(Incorporating Amendment No. 1)

UDC 683.878.7

© BIS 2003

B U R E A U O F I N D I A N S T A N D A R D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Price Group 4

IS : 1899 - 1977

Indian Standard SPECIFICATION FOR BLOW LAMPS

( Second Revision ) Oil Burning Appliances (Pressure Type) Sectional Committee, CPDC 3

Chairman SHRI A. R. A. KRISHANAN

Members

Representing (Formerly) Ministry of Defence (DGI)

MAJ S. K. MISRA ( Alternate to Shri A. R. A. Krishanan )

SHRI P. N. BHAMBI SHRI T. N . SINGH ( Alternate )

SHRI P. C. KAPUR

DEPUTY ASSISTANT DIRECTOR

Indian Institute of Petroleum (CSIR), Dehra Dun

Directorate General of Health Services (Ministry of Health and Family Welfare), New Delhi

GENERAL (STORES) ( Alternate ) SHRI O. P. KEDIA

SHRI A. K. KEDIA ( Alternate ) SHRI S. D. MAJUMDAR

SHRI D. K. ROY ( Alternate ) SHRI B. D. MIMANI SHRI BRIJRAJ SHANKAR MISHRA SHRI S. C. NEOGI

Mechanics (India) Pvt Ltd, Calcutta

National Test House, Calcutta

Dazzle Products Ltd, Calcutta Prabhat Udyog Ltd, Bombay Prafulla Mechanical Works Private Ltd, Calcutta

SHRI S. BHATTACHARJEE ( Alternate ) SHRI G. G. PATEL SHRI N. R. PAUL

SHRI T. RAMASUBRAMANIAN

SHRI G. V. RAO

SHRI MAHENDRA A. SHAH SHRI SURYAKANT J.

GHADIALI ( Alternate ) SHRI S. M. SHAH SHRI A. SINHA

Patson Burner Industries, Bombay Indian Non-Ferrous Metals Manufacturer's Associa-

tion, Calcutta Directorate General of Technical Development,

New Delhi Research & Development Organization (Ministry of

Defence), New Delhi Paradise Products Company, Bombay

Optimohar Industries (Pvt) Ltd, Bombay Consumer Guidance Society of India, Bombay

SMT KRISHNA BASRUR ( Alternate ) SHRI T. N. UBOVEJA

SHRI SOM PRAKASHA,

Directorate General of Supplies & Disposals (Inspection Wing), New Delhi

Director General, ISI (Ex-officio Member) Director (Consr Prods & Med Instrs)

Secretary SHRI L. R. SINGH

Assistant Director (Consr Prods & Med Instrs), ISI (Continued on page 2)

© BIS 2003 BUREAU OF INDIAN STANDARDS

This publication is protected under the Indian Copyright Act (XIV of 1957) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act.

IS : 1899 - 1977

(Continued from page 1) Oil Pressure Lamps, Stoves, Blow Lamps and Other Appliances

Subcommittee, CPDC 3 : 1 Members

SHRI K. K. G A G G A R

Representing

Prabhat Udyog Ltd. Bombay SHRI A. K. CHATURVEDI ( Alternate )

SHRI M. J . K A N S A R A

SHRI O. P. KEDIA SHRI A. K. KEDIA ( Alternate )

SHRI B. D. MIMANI MAJ S. K. MISRA

SHRI V. K. BAJPAI ( Alternate )

SHRI D. K. ROY

SHRI S. M. SHAH

SHRI T. N. UBOVEJA

International Burner Manufacturing Co, Bombay Mechanics (India) Pvt Ltd, Calcutta

Dazzle Products Ltd, Calcutta Ministry of Defence (DGI)

National Test House, Calcutta Optimohar Industries (Pvt) Ltd, Bombay Directorate General of Supplies & Disposals

(Inspection Wing), New Delhi

2

IS : 1899 - 1977

Indian Standard SPECIFICATION FOR BLOW LAMPS

( Second Revision )

0. F O R E W O R D 0.1 This Indian Standard (Second Revision) was adopted by the Indian Standards Institution on 29 September 1977, after the draft finalized by the Oil Burning Appliances (Pressure Type) Sectional Committee had been approved by the Consumer Products and Medical Instruments Division Council. 0.2 This standard was first published in 1961 and subsequently revised in 1965. The second revision of this standard has been necessitated as a result of experience gained through its implementation by the industry as well as the consumers during the past years. In this revision a number of modifications relating to the materials and the basic dimensions of important components have been incorporated with a view to make the standard self-contained, which should be helpful in its effective implementation. 0.3 In keeping with the policy of ISI not to restrict the improvements in design and at the same time to ensure interchangeability of replaceable components, only the essential mating dimensions have been prescribed. Further, in the interest of safety and life of blow lamps, the minimum requirements of the material used in fabricating the more important parts have been specified. In order to give an idea of the approximate properties which the materials used for other components have to meet. Appendix A has been included which gives typical materials used in the manufacture of those components. It is pointed out that the requirements mentioned in Appendix A are only typical and are based on common trade usage and it does not preclude the use of alternative materials having characteristics equivalent to or superior to those specified. 0.4 Since long, ISO metric screw threads have been introduced in the Indian industry and by now they are widely acknowledged as standard screw threads. In view of this, it has been decided to replace the SI metric threads as previously specified in this standard by ISO metric screw threads (see IS: 4218*). It is hoped that oil pressure appliances industry would have no difficulty in adopting ISO metric screw threads.

*ISO metric screw threads. 3

IS : 1899 - 1977

0.5 This edition 3.1 incorporates Amendment No. 1 (August 1982). Side bar indicates modification of the text as the result of incorporation of the amendment. 0.6 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 with IS : 2-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

1. SCOPE 1.1 This standard covers the requirements for two sizes of blow lamps burning pressurized kerosine under a normal working pressure of 245 kN/m2 (2.5 kgf/cm2). 2. TERMINOLOGY 2.1 For the purpose of this standard, the nomenclature of the different parts shall be as indicated in Fig. 1 to 6. 3. TYPES AND SIZES 8.1 Blow lamps shall be of the following two types:

a) Inclined burner type, and b) Vertical burner type.

3.2 Sizes and fuel capacity of the blow lamps shall be as follows: Size

1 2

Fuel Capacity (Nominal)

ml 500

1 000 NOTE — The capacity shall be measured by filling oil to the maximum, that is, to the top of oil filler assembly.

4. MATERIALS 4.1 The materials used in the manufacture of different parts shall be such that they would ensure safe handling and good performance of the blow lamps throughout their reasonable life.

*Rule8 for rounding off numerical values ( revised ).

4

IS : 1899 - 1977

4.2 The following components of blow lamp shall be made from the materials specified against each:

Sl No.

i)

ii)

iii)

iv)

v)

vi)

vii)

viii)

Component

Fuel tank

Burner tube

Burner (top portion)

Flame tube

Nipple

Burner protection strap

Wire cloth

Washer for oil filler cap

Ref to Fig.

1

1 & 2

2

1

4

1

1 & 2

5

Material

Brass sheet, alloy designation Cu Zn 37 of IS : 410-1977* annealed, 1.25 mm thickness or more, subject to a minimum of 0.91 mm thickness at any point after draw.

Seamless brass tube of 10 mm outside diameter and 1.5 mm thickness, conforming to alloy No. 2 of IS : 407-1966†

Leaded brass conforming to type I or type II of IS : 319-1974‡

Seamless brass tube conforming to alloy No. 2 IS : 407-1966†

Brass rod conforming to IS : 319-1974‡

Steel strip 2.00 mm thickness conforming to Designation St-42-1079 of IS : 1079-1973§

0.25 × 0.180 mm brass wire cloth conforming to IS : 1568-1970||

Neoprene or any other equally suitable material which is resistant to heat and kerosine oil

4.3 Typical materials that are commonly used in the manufacture of other components are given in Appendix A.

*Specification for rolled brass sheet strip and foil (third revision). †Specification for brass tubes for general purposes (second revision). ‡Specification for free-cutting brass bars, rods and sections (third revision). §Specification for hot rolled carbon steel sheet and strip (third revision). ||Specification for wire cloth for general purposes (first revision).

5

IS : 1899 - 1977

6. DESIGN AND DIMENSIONS 6.1 A typical design of the blow lamp is shown in Fig. 1. The inclined and vertical type burners shall generally conform to the designs shown in Fig. 1 and 2 respectively. The main dimensions of important components shall be as given in Fig. 2 to 6.

FIG. 1 BLOW LAMP, TYPICAL

6

IS : 1899 - 1977

All dimensions in millimetres.

FIG. 2 VERTICAL BURNER ARRANGEMENT

7

IS : 1899 - 1977

All dimensions in millimetres.

FIG. 4 NIPPLE

FIG. 5 OIL FILLER ASSEMBLY. TYPICAL

8

IS : 1899 - 1977

All dimensions in millimetres.

FIG. 6 DETAILS OF NON-RETURN VALVE

6. CONSTRUCTION 6.1 General 6.1.1 The construction of the blow lamp shall be such as to withstand the tests laid down in 11. The fuel container and other parts which are subjected to pressure shall be stress relieved after fabrication but before soldering. This shall be tested by the mercurous nitrate test given in IS : 2305-1962*. 6.1.2 The blow lamp shall be so made as to stand firm on its base. It shall be, both when full of oil and when empty, capable of being tilted in any direction to an angle of 15° from the vertical without overturning on being released. 6.1.8 The mating of threaded components having less than and including 1 mm pitch shall be of medium class fit, whereas the threads with more than 1 mm pitch shall be of free class fit.

*Method for mercurous nitrate test for copper and copper alloys.

9

IS : 1899 - 1977

6.1.4 The joints of the fuel tank and burner, which are exposed to high temperature during the working of the lamp, shall be brazed with any suitable brazing alloy having a high melting point (800 to 850°C). The brazed joints shall be sound and smooth and shall be free from cracks and flaws. 6.2 Fuel Tank — The upper and bottom of the fuel tank shall be either pressed or spun. 6.2.1 The upper and bottom shall be securely fixed, and then thoroughly sweated with hard solder. The tank shall be so constructed that no permanent distortion takes place under normal conditions of use. 6.3 Burner Assembly 6.3.1 The assembly of the burner shall be such that the fuel jet plays centrally in the burner, so as to produce a uniform, well-directed blue flame. 6.8.2 The gland provided for facilitating proper seating of the burner on the fuel tank shall be suitably fitted on the oil tube of the burner and shall be soundly brazed. The gland shall be lined with asbestos rope to provide a leakproof joint when the burner is assembled to the fuel tank. 6.3.3 The orifice for fuel in the nipple, which shall be slightly counter-sunk on the outside, shall be drilled straight and shall be free from burrs. Nipple shall be so shaped as to enable a spanner or key to be used for screwing and unscrewing. 6.4 Pump 6.4.1 The pump shall be of sound construction and shall be capable of developing and retaining a pressure of 245 kN/m2 (2.5 kgf/cm2) (see also 11.1.1). The pump washer and the non-return valve shall be removable. 6.6 Pressure-Release Screw 6.6.1 The fuel tank shall be fitted with a pressure release screw for releasing pressure inside the tank quickly and safely. 6.6.2 The outlet hole in the socket of the release screw shall be directed downwards at an angle of 45 ± 5°. 6.6 Oil-Filler-Cap Assembly — The oil-filler-cap assembly shall be leakproof at the normal working pressure, safety pressure and the bursting pressure. The filler assembly shall be so located that when oil is filled in the fuel tank up to that level, it should not be more than 94 percent of the full capacity of the fuel container.

10

IS : 1899 - 1977

6.7 Washer 6.7.1 The pump washer shall be made from curried buffalo leather or other equally suitable material and shall be treated to avoid hardening and cracking. 6.7.2 The washer for oil filler cap shall not become tacky or swollen when kept immersed in kerosine oil at 60°C for 24 hours and shall be capable of giving leak-proof seal after the above test. 6.8 Interchangeable Parts — The following parts shall be interchangeable:

a) Burner, b) Nipple, c) Oil filler cap, and d) Pressure release screw.

7. FINISH 7.1 The fuel tank and other brazed parts shall be finished bright. The mild steel parts shall be tinned or cadmium plated. Alternatively, they may, with the exception of pump rod, be painted. Residues of solder flux and similar corrosives shall be removed during manufacture to prevent later corrosion. The inside shall be clean and free from dust, grit or any other foreign matter. 7.2 The cadmium plating shall comply with the requirements of IS : 1572-1968*. 8. INSTRUCTIONS 8.1 The manufacturer shall provide the instructions for the safe use of blow lamp. These shall state that the lamp shall use kerosine and shall state the maximum fuel consumption in litres per hour. A warning shall be included against the use of fuel other than kerosine. Any special precaution for the efficient use of the appliance shall also be included. 9. MARKING 9.1 The blow lamp shall be marked with the size, rated capacity in ml, the manufacturer's name, initials or registered trade-mark and the country of origin.

*Specification for electroplated coatings of cadmium on iron and steel (first revision).

11

IS : 1899 - 1977

9.1.1 The blow lamp may also be marked with the ISI Certification Mark.

NOTE — The use of the ISI Certification Mark is governed by the provisions of the Indian Standards Institution (Certification Marks) Act and the Rules and Regulations made thereunder. The ISI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by ISI and operated by the producer. ISI marked products are also continuously checked by ISI for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the ISI Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

10. PACKING 10.1 The blow lamp shall be packed in cardboard or tin box together with:

a) one packet of three nipple prickers, b) one spirit can, c) one funnel, d) one washer each for pump and oil filler cap, e) one nipple, and f) manufacturer's instructions for use.

10.2 For the purpose of shipment, a number of such boxes shall be packed in a suitable wooden case and strapped with steel hoops. 11. TESTS 11.1 Pressure Tests 11.1.1 Air Pressure Test — Each fuel tank, fitted with pump valve, the burner, and fuel cap shall be tested to an internal air pressure of 245 kN/m2 (2.5 kgf/cm2). It shall not show any sign of leakage or deformation. 11.1.2 Safety Pressure Test — One fuel tank, without burner and pump valve selected at random out of a lot of 500 shall be subjected to an internal hydraulic pressure of 980 kN/m2 (10 kgf/cm2) for a period of 5 minutes. The tank shall not show any sign of leakage or any appreciable deformation. 11.1.3 Bursting Pressure Test — When the tank selected as in 11.1.2, is further subjected to a hydraulic pressure of 1375 kN/m2

(14 kgf/cm2), it shall neither burst nor unduly distort. Slight leakage of the hydraulic fluid shall, however, be permissible provided the

12

IS : 1899 - 1977

pressure is capable of being maintained for a duration of not less than 5 minutes. 11.2 Surface Temperature — The surface temperature of handle and any other part of the lamp that may be necessary to touch during its operation shall not exceed 60°C and shall preferably be lower, when measured in accordance with method prescribed in Appendix B. 11.3 Performance Test — The blow lamp when worked at the working pressure of 195 kN/m2 (2 kgf/cm2) shall burn uniformly and shall be capable of melting a piece of 3.2 mm hard drawn stress relieved brass wire in not more than 35 seconds, when the wire is held firmly in a horizontal manner and perpendicular to the flame. 11.8.1 Quality of Kerosine — The kerosine to be used in the blow lamp for carrying out the performance test shall conform to IS : 1459-1974*.

A P P E N D I X A (Clause 4.3 )

MATERIALS COMMONLY USED IN THE MANUFACTURE OF PARTS OF BLOW LAMPS OTHER THAN THOSE

SPECIFIED IN 4.2 Sl

No. i)

ii)

iii)

iv)

V)

vi)

Name of Component

Handle Pressure-release screw

Pump barrel

Pump knob and pump valve

Pump rod, nut and washer

Pump cap

Material

Mild steel Brass rod

or Cast brass

Seamless brass tube

Brass rod

Brass rod or

Mild steel rod Brass rod

Recommended Specification IS : 226-1975† IS : 319-1974‡

IS : 292-1961§ Alloy No. 2 of IS : 407-1966|| IS : 319-1974‡

IS : 319-1974‡

IS : 226-1975† IS : 319-1974‡

*Specification for kerosine (second revision). †Specification for structural steel (Standard Quality) (fifth revision). ‡Specification for free-cutting brass bars, rods and sections (third revision). §Specification for brass ingots and castings (revised). ||Specification for brass tubes for general purposes (second revision).

13

IS : 1899 - 1977

A P P E N D I X B (Clause 11.2)

METHOD OF MEASUREMENT OF SURFACE TEMPERATURE B-1. PREPARATION OF LAMP B-1.1 The blow lamp shall be tested with the fuel tank containing approximately 75 percent of the amount of fuel, which it would hold when full. The lamp shall be lit and run at full output for one hour before starting the measurement of temperature. B-2. PROCEDURE B-2.1 The temperature of the handle and all other parts of the lamp which may be necessary to touch during its operation shall be measured by using a mercury bulb thermometer. The temperature of each such part shall be measured thrice every 30 minutes to get three concordant readings. While measuring the temperature, the thermometer shall be covered with a felt pad and kept in contact with that part for sufficient period of time until maximum temperature is reached.

Surface temperature noted above shall be corrected according to the following formula:

Standard room temperature = 27°C Test room temperature = x°C Surface temperature (average of = y°C

three measured temperature readings) Corrected surface temperature = y°C – (x – 27)°C

14

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Amendments Issued Since Publication Amend No. Date of Issue Amd No 1 August 1982

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