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See Chinese contents: GB/T 6730.9-2016 GB/T 6730.9-2016: Iron ores -- Determination of silicon content -- Silicomolybdic blue spectrophotometric method reduced by ammonium ferrous sulfate
This Part of GB/T 6730 specifies the determination of silicon content through the silicomolybdic blue spectrophotometric method reduced by ammonium ferrous sulfate. This Part is applicable to the determination of silicon content in natural iron ore, iron concentrate, sinter and pellets. The range of determination (mass fraction) is: 0.10% ~ 5.00%.
