DIN EN 12582-1999 表面活性剂.用HPLC/ELSD法根据非离子表面活性剂(乙氧基)中分子质量测定聚乙二醇总含量
Surface active agents - Determination of the polyethylene glycol content according to molar mass in non-ionic surface active agents (ethoxylated) by HPLC/ELSD; German version EN 12582:1999