Home / Standards / GB/T 7372-1987 GB/T 7372-1987 Active Dichlorodifluoromethane for industrial uses 工业用二氟二氯甲烷 (F12) Standard Type GBT ICS 71.080.20 CCS G17 Status 现行 Issue Date 1987-03-09 Implementation 1987-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A