标准摘要
[中文适用范围]: 该方法适用于钠含量为 0.02 至 1.0 % (m/m)、钾含量为 0.08 至 3.0 % (m/m) 的产品。 ISO 7969 应与 ISO 4297 一起阅读。 规定了原理、试剂、仪器、取样、程序和结果的表达。 [外文原描述]: The method is applicable to products having sodium contents from 0,02 to 1,0 % (m/m), and potassium contents from 0,08 to 3,0 % (m/m). ISO 7969 should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sampling, procedure and expression of results.
英文名称Manganese ores and concentrates — Determination of sodium and potassium contents — Flame atomic absorption spectrometric method