Home / Standards / GB/T 665-2007 GB/T 665-2007 Active Chemical reagent - Copper(Ⅱ) Sulfate pentahydrate 化学试剂 五水合硫酸铜(Ⅱ)(硫酸铜) Standard Type GBT ICS 71.040.30 CCS G62 Status 现行 Issue Date 2007-09-26 Implementation 2008-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A