DIN EN ISO 24431:2015-08

This International Standard specifies the inspection requirements at the time of filling, and applies to seamless or welded transportable gas cylinders made of steel or aluminium-alloy (Type 1), and for composite transportable gas cylinders (Types 2-5 inclusive) for liquified or compressed gases of a water capacity up to 150 l. It may be applied to cylinders and tubes with a water capacity between 150 l and 450 l provided they are inspected and filled as individual cylinders and tubes.