Home / Standards / GB/T 37994-2019 GB/T 37994-2019 Active General rules for sampling blend 混合制冷剂采样通则 Standard Type GBT ICS 71.080.20 CCS G15 Status 现行 Issue Date 2019-08-30 Implementation 2020-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A