Home / Standards / GB/T 1400-2014 GB/T 1400-2014 Active Chemical reagent―Hexamethylene tetramine 化学试剂 六次甲基四胺 Standard Type GBT ICS 71.040.30 CCS G63 Status 现行 Issue Date 2014-09-03 Implementation 2015-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A