DIN EN 17150:2017 非飲用水地下非壓力輸送和儲存用塑料管道系統(tǒng) 箱體短期抗壓強度測定的試驗方法
Plastics piping systems for non-pressure underground conveyance and storage of non-potable water - Test method for determination of short term compression strength of boxes; German and English version prEN 17150:2017