BS EN 14668-2005 表面活性剂.原材料和按配方制造产品中季铵表面活性剂测定.电位测量两相滴定法

标准号：BS EN 14668-2005
中文标准名称：表面活性剂.原材料和按配方制造产品中季铵表面活性剂测定.电位测量两相滴定法
英文标准名称：Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method
标准类型：G72
发布日期：2005/9/5 12:00:00
实施日期：2005/9/5 12:00:00
中国标准分类号：G72
国际标准分类号：71.100.40
引用标准：EN 14670;EN ISO 3696;ISO 607
适用范围：This European Standard specifies a method for the determination of the content of quaternary ammonium surface active agents in raw materials and formulated products, defined as being the amount of quaternary ammonium surface active agents expressed in millimoles per 100 g of product. NOTE 1 The applicability in products different than those tested should be checked in each particular case. NOTE 2 In comparison to usual laboratory two-phase titration with visual endpoint determination (see ISO 2871-1 and ISO 2871-2) potentiometric titration offers the advantage of automation, operator-dependent differences in recognising the equivalence point can be neglected, and a non-critical solvent replaces the toxicologically critical chloroform.