NBN EN 1440:2008

This European Standard specifies procedures for periodic inspection and testing, for transportable refillable LPG cylinders with a water capacity from 0,5 l up to and including 150 l.
This standard is applicable to the following:
 welded and brazed steel LPG cylinders with a specified minimum wall thickness (see EN 1442 and EN 12807 or the equivalent standard)
 welded steel LPG cylinders without specified minimum wall thickness (see EN 14140:2003+A1 or the equivalent standard)
 welded aluminium LPG cylinders (see EN 13110 or the equivalent standard)
 composite LPG cylinders (see EN 14427 or the equivalent standard).
This standard is intended to be applied to cylinders complying with RID/ ADR (including pi marked cylinders) and also to existing non RID/ ADR cylinder populations.
This standard does not apply to cylinders permanently installed in vehicles.