标准摘要
[中文适用范围]： ISO 2871 的这一部分规定了高分子量阳离子活性材料的测定方法，例如 a) 季铵化合物，其中两个烷基各自含有 10 个或更多碳原子，例如二硬脂基二甲基氯化铵，或b)咪唑啉或3-甲基咪唑啉的盐，其中长链酰氨基乙基和烷基分别在1-和2-位被取代。 当阳离子活性物质的相对分子质量已知或当其含量以质量百分比表示时已预先确定时，该方法适用于活性物质的固体或水溶液。 如果存在阴离子表面活性剂，则该方法不适用。 [外文原描述]： ISO 2871-1:2010 specifies a method for the determination of high-molecular-mass cationic-active materials such as quaternary ammonium compounds in which two of the alkyl groups each contain 10 or more carbon atoms, e.g. distearyl-dimethyl-ammonium chlorides, or salts of imidazoline or 3-methylimidazoline in which long-chain acylaminoethyl and alkyl groups are substituted in the 1- and 2-positions, respectively. The method is applicable to solids or to aqueous solutions of the active material. The method is not applicable if anionic surface active agents are present.
英文名称Surface active agents — Detergents — Determination of cationic-active matter content — Part 1: High-molecular-mass cationic-active matter