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See Chinese contents: GB/T 6730.65-2009 GB/T 6730.65-2009: Iron ores -- Determination of total iron content -- Titanium (Ⅲ) chloride reduction potassium dichromate titration methods (routine methods)
This Part of GB/T 6730 specifies the method for the determination of total iron content by titanium trichloride reduction potassium dichromate titration method (conventional method). This Part applies to the determination of total iron content in natural iron ore, iron concentrate and lump ore, including sinter and pellets. The determination range (mass fraction): 25%~72%.
