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See Chinese contents: GB/T 6730.5-2007 GB/T 6730.5-2007: Iron ores -- Determination of total iron content -- Titanium (Ⅲ) chloride reduction methods
This Part of GB/T 6730 specifies the determination of total iron content by titration of potassium dichromate after reduction of iron with titanium (III) chloride. This Part applies to the determination of total iron content in natural iron ores, iron concentrates, and agglomerations, including sintered products. The determination range (mass fraction): 30.0%~72.0%.
