DIN EN ISO 1163-1:1999
塑料.未增塑聚氯乙烯(PVC-U)模塑与挤出材料.第1部分:命名系统与基本规范
Plastics - Unplasticized poly(vinyl chloride) (PVC-U) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 1163-1:1995); German version EN ISO 1163-1:1999