Home / Standards / GB/T 37177-2018 GB/T 37177-2018 Active Coal-based mixed pentene 煤基混合戊烯 Standard Type GBT ICS 71.080.10 CCS G16 Status 现行 Issue Date 2018-12-28 Implementation 2019-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A