Home / Standards / GB/T 39379-2020 GB/T 39379-2020 Active Thermoplastics piping systems for non-pressure applications—Test method for watertightness 无压热塑性塑料管道系统 水密性试验方法 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