Home / Standards / GB/T 39689-2020 GB/T 39689-2020 Active Surface active agents—Determination of free formaldehyde 表面活性剂 游离甲醛含量的测定 Standard Type GBT ICS 71.100.40 CCS G72 Status 现行 Issue Date 2020-12-14 Implementation 2021-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A