Home / Standards / GB/T 685-2013 GB/T 685-2013 Active Chemical reagent—Formaldehyde solution 化学试剂 甲醛溶液 Standard Type GBT ICS 71.040.30 CCS G63 Status 现行 Issue Date 2013-12-31 Implementation 2014-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A