ISO 2271-1989 表面活性剂 洗涤剂 用人工或机械直接两相滴定法测定阴离子活性物

标准号：ISO 2271-1989
中文标准名称：表面活性剂 洗涤剂 用人工或机械直接两相滴定法测定阴离子活性物
英文标准名称：Surface active agents; detergents; determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
标准类型：Y40;G72
发布日期：1999/12/31 12:00:00
实施日期：1989/10/15 12:00:00
中国标准分类号：Y40;G72
国际标准分类号：71.100.40
适用范围：The substance is determined in a medium consisting of an aqueous and a chloroform phase by titration with a standard volumetric cationic-active solution (benzethonium- chloride) in the presence of an indicator which consists of a mixture of cationic dye (dimidium bromide) and an anionic dye (acid blue 1). The method is applicable to solids or to aqueous solutions of the active material. The relative molecular mass of the anionic active matter has to be known. The method is not applicable if cationic surface active agents are present.