IS 7142 : 1995 Welded low carbon steel cylinders for low pressure liquifiable gases not exceeding 5 litre water capacity - Specificatiom

1 Scope

1.1 This standard deals with welded low carbon steel two piececylinders intended for storage and transportation of low pressureliquefiable gases, other than toxic gases, of nominal capacityexceeding 500 ml, but not exceeding 5 litres water capacity. Thisstandard lays down the requirements for the materials, design,manufacture, construction, tests and marking of these cylinders.

1.1.1 Cylinders with water capacity more than 5 litres arecovered in IS 3196 : Part 1 : 1992 `Welded low carbon steelcylinders exceeding 5 litre water capacity for low pressureliquefiable gases : Part 1 Cylinders for liquefied petroleum gases(LPG) - Specification', and IS 3196 : Part 2 : 1992 `Welded lowcarbon steel cylinders exceeding 5 litre water capacity for lowpressure liquefiable gases : Part 2 Cylinders for liquefiable gasesother than LPG - Specification'.

2 References

List of Referred Indian Standards

IS 513 :1986Cold-rolled low carbon steel sheets and strips

IS 817 :1966 Code of practice for training and testing ofmetal arc welders

IS 1079 :1994Hot rolled carbon steel sheet and strip

IS 1875 :1992Carbon steel billets, blooms, slabs and bars forforgings

IS 2062 :1992Steel for general structural purposes

IS 3196 : Part 3 :1991 Welded low carbon steel cylindersexceeding 5litre water capacity for low pressureliquefiable gases:Part 3 Methods of test

IS 3224 :1979Valve fittings for compressed gas cylindersexcluding liquefied petroleum gas (LPG)cylinders

IS 4379 :1981Identification of contents of industrial gascylinders

IS 4431 :1978Carbon and carbon manganese free cutting steels

IS 6240 :1989Hot rolled steel plate (up to 6 mm) sheet andstrip for the manufacture of low pressureliquefiable gas cylinder

IS 7202 :1974Inspection gauges for checking threads of gascylinder valves for use with breathingapparatus

IS 7241 :1981Glossary of terms used in gas cylindertechnology

IS 7283 :1992Hot rolled bars for production of bright barsand machined parts for engineering applications

IS 8776 :1988Valve fittings for use with liquefied petroleumgas (LPG) cylinder up to including 5 litre watercapacity

IS 8867 :1978Saturated vapour pressure and test pressure forlow pressure liquefiable gases contained in gascylinders

IS 9121 : 1979 Inspectiongauges for checking, type 1 (size 2)taper thread of gas cylinder valves, tapers in16

IS 9122 :1979Inspection gauges for checking type 2 taperthreads of gas cylinder valves, taper 3 in 25

IS 9639 :1980Code of practice for visual plate, inspection ofnewly manufactured low pressure welded steel gascylinders

IS 9687 :1980Inspection gauges for checking type 1 (size 1)taper threads of gas cylinder valves taper 1 in16

IS 10787 : 1984 Hot rolled micro-alloyed steelsheet and stripfor manufacture of low pressure liquefiable gascylinders

IS 12300 :1988Valve fittings for small freon cylinders