Means of packaging – Cylindrical beverage containers – Part 4: Disposal pack with allowable operating pressure up to 4 bar, nominal volume up to 60 litres
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2011

Means of packaging – Cylindrical beverage containers – Part 4: Non-returnable packaging withallowable operating pressure up to 3 bar, nominal volume up to 60 litres
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/2004