ISO 13769:2018

This document specifies stamp marking of transportable gas cylinders of volumes greater than 0,12 l and up to or equal to 150 l and tubes of volumes up to or equal to 3 000 l, including:
-      steel and aluminium-alloy gas cylinders;
-      composite gas cylinders;
-      acetylene cylinders;
-      liquefied petroleum gas (LPG) cylinders (see Annex A); and
-      small cylinders (see Annex B).
Unless noted by exception, the use of "cylinder" in this document refers to the above types of cylinders.
Non-refillable cylinders are addressed by this standard.