DIN EN 1329-1:2014 建筑物污物和污水排放(低溫和高溫)用塑料管道系統(tǒng).未增塑聚氯乙烯(PVC-U).第1部分:管道、配件和系統(tǒng)規(guī)范
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the system; German version EN 1329-1:2014