ISO 2479-1972 工业用氯化钠 不溶于水或不溶于酸的物质含量的测定和供其他测定用的主溶液的配制

标准号：ISO 2479-1972
中文标准名称：工业用氯化钠 不溶于水或不溶于酸的物质含量的测定和供其他测定用的主溶液的配制
英文标准名称：Sodium chloride for industrial use; Determination of matter insoluble in water or in acid and preparation of principal solutions for other determinations
标准类型：G10
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G10
国际标准分类号：71.060.50
适用范围：Insoluble substances shall be defined by the conditions described in this document. The object is not to dissolve all the impurities but only those of interest to users. The method is applicable to the analysis, carried out inaqueous medium or in acid medium. The principle consists in solution of the test portion in water, filtration, drying and weighing of the insoluble residue. Dilution of the filtrate to form the main solution for carrying out other determinations.