Home / Standards / GB/T 39302-2020 GB/T 39302-2020 Active Reclaimed water quality—Determination of anionic surfactants—Methylene blue spectrophotometric method 再生水水质 阴离子表面活性剂的测定 亚甲蓝分光光度法 Standard Type GBT ICS 13.060.50;71.040.40 CCS G76 Status 现行 Issue Date 2020-11-19 Implementation 2021-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A