标准摘要
[中文适用范围]： 适用于氯化物含量（以氯表示）等于或大于 0.005% (m/m) 的产品。 其原理在于在硼酸存在下，氯离子与硝酸银沉淀。 使用纳氏管在黑色背景下比较测试溶液与标准匹配溶液的乳光。 沉淀物质量的比浊评估。 [外文原描述]： Applicable to products having a chlorides content, expressed as chlorine, of equal to or more than 0.005 % (m/m). The principle consists in precipitation, in the presence of boric acid, of chloride ions with silver nitrate. Comparison of the opalescence of the test solution with that of standard matching solutions using Nessler tubes against a black background. Turbidimetric evaluation of the mass of precipitate.
英文名称Sodium fluoride primarily used for the production of aluminium — Determination of chlorides content — Turbidimetric method