Draft Document – Polyethylene (PE) pipes – PE 80, PE 100 – General quality requirements, testing
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2010
Draft Document – Polyethylene (PE) pipes – PE 80, PE 100 – General quality requirements, testing; Text in German and English
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2017
