BS EN 1453-1:2000 建筑物內糞水和廢水排放(低和高溫)用的結構墻壁管道的塑料管道系統.非增塑的聚氯乙烯(PVC-U)的管道和系統規范
Plastics piping systems with structured-wall pipes for soil and waste discharge (low and high temperature) inside buildings - Unplasticized poly (vinyl chloride) (PVC-U) - Specifications for pipes and the system