DIN EN 1519-1:2019 建筑结构内用于土壤和废物排放(低温和高温)的塑料管道系统 聚乙烯(PE) 第1部分:管道、配件和系统的要求
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polyethylene (PE) - Part 1: Requirements for pipes, fittings and the system