ISO 16486-5:2021
供应气体燃料的塑料管道系统 - 熔合连接和机械连接的未增塑聚酰胺(PA-U)管道系统 - 第5部分:系统的适用性
Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 5: Fitness for purpose of the system