Home / Standards / GB/T 38100-2019 GB/T 38100-2019 Active Refrigerant blends R407 series 混合制冷剂R407系列 Standard Type GBT ICS 71.080.20 CCS G17 Status 现行 Issue Date 2019-10-18 Implementation 2020-09-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A