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  • DS/EN 12582-1999

    Surface active agents - Determination of the polyethylene glycol content according to molar mass in non-ionic surface active agents (ethoxylated) by HPLC/ELSD


     

     

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    標準號
    DS/EN 12582-1999
    發布日期
    1999年10月08日
    實施日期
    1999年08月16日
    廢止日期
    國際標準分類號
    71.100.40
    發布單位
    DK-DS
    適用范圍
    The standard describes determination of the polyethylene glycol (PEG) content in aromatic and aliphatic non-ionic surfactants. It is applicable to all ethoxylated products soluble in methanol or methanol/water mixture. A portion of the sample solution is analysed by high performance liquid chromatography (HPLC) with evaporative light scattering detector (ELSD). The method is not applicable to PEG whose molecular weight is lower than 400.




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