ISO 746:1976 工业用碳酸钠.在50℃时水不溶物的测定

标准编号：ISO 746:1976

中文名称：工业用碳酸钠.在50℃时水不溶物的测定

英文名称：Sodium carbonate for industrial use — Determination of matter insoluble in water at 50 degrees C

发布日期：1976-02

标准范围

该方法的原理包括溶解试验部分，并通过去皮过滤器过滤溶液。在50℃左右洗涤不溶物，直到洗涤液不再呈碱性。干燥残渣并称重。取代ISO建议R 746-1968。

The principle of the method consists in dissolution of a test portion and filtration of the solution through a tared filter. Washing of the insoluble matter at approximately 50 C until the washings are no longer alkaline. Drying of the residue and weighing. Replaces ISO Recommendation R 746-1968.

标准预览图