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 European 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 manufactured to an alternative design and construction" (see EN 14140:2003+A1 or the equivalent standard); NOTE This European Standard also applies to protected cylinders, see 5.3 and Annex G." welded aluminium LPG cylinders (see EN 13110 or the equivalent standard); composite LPG cylinders (see EN 14427 or the equivalent standard). This European 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 European Standard does not apply to cylinders permanently installed in vehicles.