DIN 85051-1
DIN 85051-1 Pressfitting systems for pipes for use in shipbuilding - General requirements and test methods - Part 1: Operating pressures up to 16 bar
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2012
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2012