Home / Standards / GB/T 660-2015 GB/T 660-2015 Active Chemical reagent—Ammonium thiocyanate 化学试剂 硫氰酸铵 Standard Type GBT ICS 71.040.30 CCS G62 Status 现行 Issue Date 2015-05-15 Implementation 2015-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A