Home / Standards / GB/T 28799.5-2020 GB/T 28799.5-2020 Active Polyethylene of raised temperature resistance (PE-RT) piping systems for hot and cold water installations—Part 5: Fitness for purpose of the system 冷热水用耐热聚乙烯(PE-RT)管道系统 第5部分:系统适用性 Standard Type GBT ICS 83.140.30 CCS G33 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A