EN 1453-1:2017 建筑物内的粪水和废物排放用的带结构壁管道的塑料管道系统低温和高温-非增塑聚氯乙烯(PVC-U)-第1部分:管道和系统的规范
Plastics piping systems with structured-wall pipes for soil and waste discharge (low and high temperature) inside buildings - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes and the system