DIN 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的测定.电位测量两相滴定法
Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005
This 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.#,,#