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standard by International Organization for Standardization, 09/01/2015
ISO 4695:2015 specifies a method to provide a relative measure for evaluating the extent to and ease with which oxygen can be removed from iron ores, when reduced under conditions resembling those prevailing in the reduction zone of a blast furnace.
ISO 4695:2015 is applicable to lump ores, sinters and hot-bonded pellets.