美利体育登录入口官网:BS EN 714:1995
热塑性塑料管道系统 压力管道和模制配件之间的非端部承载弹性密封环型接头 无端推力的内部静水压力下的密封性试验方法
Thermoplastics piping systems. Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings. Test method for leaktightness under internal hydrostatic pressure without end thrust