ISO 13845:2015
塑料管道系統 用于硬聚氯乙烯管道的彈性密封環式承口連接件 內壓下角度偏轉密封試驗方法
Plastics piping systems - Elastomeric-sealing-ring-type socket joints for use with thermoplastic pressure pipes - Test method for leaktightness under internal pressure and with angular deflection