scope:

This International Standard specifies minimum requirements forthe material, design, inspections, construction and workmanship,manufacturing processes, and tests at manufacture of non-refillablemetallic gas cylinders of welded, brazed, or seamless constructionfor compressed and liquefied gases including the requirements fortheir non-refillable sealing devices and their methods of testing.NOTE The specific gases permitted in cylinders constructed to thisInternational Standard can be limited by national or internationalrequirements. This International Standard is applicable tocylinders where a) the test pressure does not exceed 250 bar (i.e.ph ? 250 bar) for liquefied gases and 450 bar for compressed gases;b) the product of the test pressure and the water capacity does notexceed 1 000 bar?litres (i.e. ph V ? 1 000 bar L); c) the testpressure exceeds 45 bar and the water capacity does not exceed 5 l(i.e. for ph > 45 bar, then V ? 5 l).