GB/T 1508-2002 in English

《GB/T 1508-2002锰矿石 全铁含量的测定 重铬酸钾滴定法和邻菲啰啉分光光度法》由TC318（全国生铁及铁合金标准化技术委员会）归口，主管部门为中国钢铁工业协会。
本部分规定了用重铬酸钾滴定法和邻菲��啉分光光度法测定全铁含量的原理、试剂和材料、仪器、取制样、分析步骤、结果计算等。本部分适用于钒含量（质量分数）＜0.02%的锰矿石和锰精矿中全铁含量的测定，测定范围（质量分数）：方法一 重铬酸钾滴定法为2.00%～25.00%，方法二 邻菲��啉分光光度法为0.10%～3.00%。

Scope

This part specifies the principle, reagents and materials, instruments, sampling and preparation, analysis steps, calculation of results, etc. for the determination of total iron content by potassium dichromate titration and o-phenanthroline spectrophotometry. This part is applicable to the determination of total iron content in manganese ores and manganese concentrates with vanadium content (mass fraction) < 0.02%. Determination range (mass fraction): Method 1 Potassium dichromate titration method is 2.00% to 25.00%, method Two o-phenanthroline spectrophotometric method is 0.10% ~ 3.O0%.