DIN EN 1905-1999 塑料管道系统.未增塑的聚氯乙烯(PVC-V)管材、管连接件和材料.根据氯总含量评定聚氯乙烯含量的方法
Plastics piping systems - Unplastized poly(vinyl chloride) (PVC-U) pipes, fittings and material - Method for assessment of the PVC content based on total chlorine content; German version EN 1905:1998
The doument specifies a method for assessing the poly(vinyl chloride) (PVC) content in reprocessable and recycable unplasticized (PVC-U) materials or in PVC-U products.