ISO 1452-5:2009
供水和埋地、地上无压排水及污水管道用塑料管道系统.未增塑聚乙烯(氯乙烯)(PVC-U).第5部分:系统的适用性
Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 5: Fitness for purpose of the system