标准摘要
[中文适用范围]: 通过与沸腾的二甲苯或石油共沸蒸馏除去测试部分中的水。 测量收集到的水的体积。 该方法适用于含水量大于5%(m/m)的粉末形式的产品,以及糊剂和溶液形式的产品。 它不适用于含有水溶性挥发性化合物(例如乙醇)的样品。 [外文原描述]: The water in a test portion is removed by azeotropic destillation with boiling xylene or petroleum. The volume of the water collected is measured. The method is applicable to products in the form of powders having water contents greater than 5 % (m/m), and in the form of pastes ans solutions. It is not applicable to samples containing water-soluble volatile compounds, for example ethanol.
英文名称Surface active agents and soaps — Determination of water content — Azeotropic distillation method