Home / Standards / GB/T 31816-2015 GB/T 31816-2015 Active Water treatment chemicals—Determination of the molecular weight and molecular weight distribution of polymers—Gel filtration chromatography 水处理剂 聚合物分子量及其分布的测定 凝胶色谱法 Standard Type GBT ICS 71.040.50 CCS G 76 Status 现行 Issue Date 2015-07-03 Implementation 2016-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A