标准摘要
[中文适用范围]： ISO 2871的本部分规定了低分子量阳离子活性物质的测定方法，例如单胺、氧化胺、季铵化合物和烷基吡啶鎓盐，其主链具有10至22个碳原子且不超过6个阳离子中的其他碳原子。 该方法也适用于其他阳离子活性材料。 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。 如果存在多于一种类型的阳离子活性材料，则可以使用平均相对分子质量的估计值。 如果存在阴离子和/或两性表面活性剂，则该方法不适用。 [外文原描述]： ISO 2871-2:2010 specifies a method for the determination of low-molecular-mass cationic-active materials such as monoamines, amine oxides, quaternary ammonium compounds and alkyl-pyridinium salts which have a main chain of 10 to 22 carbon atoms and not more than 6 other carbon atoms in the cation. The method is also suitable for other cationic-active materials. The method is applicable to solids or to aqueous solutions of the active material. The method is not applicable if anionic and/or amphoteric surface active agents are present.
英文名称Surface active agents — Detergents — Determination of cationic-active matter content — Part 2: Cationic-active matter of low molecular mass (between 200 and 500)