DIN 19531-10-1999 建筑物污水和污物排放系统用未增塑聚氯乙烯(PVC-U)套管道和配件.第10部分:燃烧性能、质量控制和安装的推荐规范
Pipes and fittings made of unplasticized polyvinyl chloride (PVC-U) socket for waste and soil discharge systems inside buildings - Part 10: Fire behaviour, quality control and installation recommendations