DIN EN 17151:2017
非饮用水地下非压力输送和储存用塑料管道系统 箱子长期抗压强度测定的试验方法
Plastics piping systems for non-pressure underground conveyance and storage of non-potable water - Test method for determination of long term compression strength of boxes; German and English version prEN 17151:2017