EN ISO 1452-3:2010
供水,地下及地上压力排水和污水用塑料管道系统.未增塑聚乙烯(氯乙烯)(PVC-U).第3部分:配件
Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 3: Fittings (ISO 1452-3:2009, corrected version 2010-03-01)