标准摘要
[中文适用范围]： 本标准规定了用于工业用氯化钠中硫酸盐含量的重量法测定方法。 [外文原描述]： The method is applicable to water soluble sulphate, in the product, but also to sulphates in a principal solution prepared in an acid medium. The principle consists in dissolution of a test portion and separation of the insoluble residue. Precipitation of the sulphate ions by barium chloride in a boiling acid medium. Filtration, washing and ignition of the precipitate. Weighing of the residue.
英文名称Sodium chloride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method