This European Standard sets out the minimum requirements relating to the material, design, construction, filling, testing and inspection at time of manufacture of non-refillable, transportable small steel cylinders and their closures of water capacities up to and including 120 ml containing non-toxic, non-flammable compressed or liquefied gases (hereinafter referred to as "compact cylinders").NOTE 1Such cylinders are referred as "small receptacle containing gas (gas cartridges)" in RID/ADR.NOTE 2For cylinders with capacities greater than 120 ml, see EN 12205 or ISO 11118.