EN ISO 13844:2022 塑料管道系统.塑料压力管道的弹性密封圈式承口接头.负压,偏角和变形的密封测试
Plastics piping systems - Elastomeric-sealing-ring-type socket joints for use with plastic pipes - Test method for leaktightness under negative pressure, angular deflection and deformation (ISO 13844:2022)
This document specifies a method for testing the leak tightness under negative pressure, angular deflection and deformation of assembled joints between elastomeric-sealing-ring-type sockets made of plastic or metal and plastic pressure pipes.