美利体育登录入口官网:EN 14741:2006
热塑管和管道系统.地下非压力设施用接头.通过评估密封压力测定弹性密封件接头的长期密封性能的试验方法
Thermoplastics piping and ducting systems - Joints for buried non-pressure applications - Test method for the long-term sealing performance of joints with elastomeric seals by estimating the sealing pressure