Methods for chemical analysis of silicate rocks—Part 5:Determination of ferric oxide content
全国国土资源标准化技术委员会
GB/T 14506的本部分规定了硅酸盐岩石中总铁量(以TFe2O3计)的测定方法。
本部分适用于硅酸盐岩石中总铁量测定，也适用于土壤和水系沉积物中总铁量的测定。
测定范围：重铬酸钾容量法，大于5%的总铁量。磺基水杨酸光度法，0.05%～15%的总铁量。邻二氮杂菲光度法，0.01%～15%的总铁量。
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