Reaffirmed 2022

1. SCOPE

This standard specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes and tests at manufacture of refillable normalized or normalized and tempered seamless steel gas cylinders of water capacities from 0.5 litre upto and including 400 litres for compressed, liquefied and dissolved gases.

NOTES

1 If so desired, cylinders of water capacity less than 0.5 litre may be manufactured and certified according to this standard.

2 If so desired, cylinders of water capacity greater than 400 litres may be manufactured and certified according to this standard. The number of cylinders to be subjected to pressure cycling test and sampling method for mechanical tests shall be decided in consultation with the statutory authority.

2. REFERENCES

The standards listed below contain provisions which, through reference in this text constitute provisions of this standard. At the time of publication, the editions were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.

1500 : 2005 Method for brinell hardness test for metallic materials (third revision)

1586 : 2000 Method for Rockwell hardness test for metallic materials (scales A-B-CD- E-F-G-H-K 15N, 30N, 45N, 15T, 30T and 45T) (third revision)

1608 : 2005 Mechanical testing of metals tensile testing (second revision)

1757 (Part 1) : 2014 Metallic materials - Charpy pendulum impact test: Part 1 Test method (third revision)

2878 : 2004 Fire extinguisher, carbon dioxide type (portable and trolley mounted) - Specification (third revision)

3224 : 2002 Valve fittings for compressed gas cylinders excluding liquefied petroleum gas LPG) cylinders - Specification (fourth revision)

3745 : 2006 Yoke type valve connections for small medical gas cylinders - Specification (second revision)

3933 : 1966 Colour identification of gas cylinders and related equipment intended for medical use

4218 ISO Metric screw threads:

(Part 1) : 2001 Basic and design profiles (second revision)

(Part 2) : 2001 General plan (second revision)

(Part 3) : 1999 Basic dimensions (second revision)

(Part 4) : 2001 Selected sizes for screws, bolts and nuts (second revision)

14962 ISO general purpose metric screw threads - Tolerances:

(Part 2) : 2001 Limits of sizes for general purpose external and internal screw threads – Medium quality

(Part 3) : 2001 Deviations for constructional screw threads

4258 : 2011 Metallic materials - Conversion of hardness values (second revision)

4379 : 1981 Identification of the contents of industrial gas cylinder (first revision)

5844 : 2014 Hydrostatic stretch testing of compressed gas cylinders - Recommendations (first revision)

7241 : 1981 Glossary of terms used in gas cylinder technology (first revision)

15683 : 2006 Portable fire extinguishers - Performance and construction - Specification

IS/ISO 11114-1 : 2012 Gas cylinders - Compatibility of cylinder and valve materials with gas contents : Part 1 Metallic materials