GB/T 17830-1999.Determination of polyethylene glycol in polyethoxylated nonionic surfactants by HPLC...
GB国家标准
GB国家标准
GB国家标准
GB/T 17830-2017 聚乙氧基化非离子表面活性剂中聚乙二醇含量的测定高效液相色谱法
GB/T 17830-2017.Determination of polyethylene glycol content in nonionic ethoxylated surfactants- HP...