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See Chinese contents: GB/T 6730.61-2005 GB/T 6730.61-2005: Iron ores -- Determination of carbon and sulfur content -- High frequency combustion with infrared absorption method
This Standard specifies the determination of carbon and sulfur content in iron ores by high frequency combustion with infrared absorption method. This Standard applies to the determination of carbon and sulfur content in natural iron ores, iron concentrates, sinter, pellets and their products. Determination range (mass fraction): carbon 0.01%~2.5%, sulfur 0.001%~2.0%.
