Home / Standards / GB/T 638-2007 GB/T 638-2007 Abolished Chemical reagent - Tin(Ⅱ)Chloride dihydrate 化学试剂 二水合氯化亚锡(Ⅱ)( 氯化亚锡) Standard Type GBT ICS 71.040.30 CCS G62 Status 废止 Issue Date 2007-10-25 Implementation 2008-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A