BS ISO 4706:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Inspection and testing
5 Materials
6 Design
7 Calculation of minimum wall thickness (sidewall and ends)
8 Construction and workmanship
9 Testing
10 Acceptance criteria
11 Technical requirements for new design type approval
12 Markings
13 Certificate
Annex A (normative) - Manufacturer's markings for LPG
Annex B (informative) - New design type approval certificate
Annex C (informative) - Acceptance certificate
Bibliography

Describes the minimum requirements concerning material selection, design, construction and workmanship, procedure and test at manufacture of refillable welded-steel gas cylinders of a test pressure not greater than 60 bar, and of water capacities from 0,5 l up to and including 500 l exposed to extreme worldwide temperatures (-50 degrees C to +65 degrees C) used for compressed, liquefied or dissolved gases.

This International Standard specifies the minimum requirements concerning material selection, design, construction and workmanship, procedure and test at manufacture of refillable welded-steel gas cylinders of a test pressure not greater than 60 bar¹⁾, and of water capacities from 0,5l up to and including 500l exposed to extreme worldwide temperatures (−50°C to+65°C) used for compressed, liquefied or dissolved gases.

Transportable large cylinders of water capacity above 150l and up to 500l may be manufactured and certified to this International Standard provided handling facilities are provided (see 8.6.4).

This International Standard is primarily intended to be used for industrial gases other than Liquefied Petroleum Gas (LPG), but may also be applied for LPG. For specific LPG applications see ISO22991.