DIN 16833
DIN 16833 Polyethylene pipes of raised temperature resistance (PE-RT) - PE-RT Type I and PE-RT Type II - General quality requirements, testing
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2009
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2009