ISO-11257 › Iron ores for shaft direct-reduction feedstocks - Determination of the low-temperature reduction-disintegration index and degree of metallization
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ISO 11257:2015 specifies a method to provide a relative measure for evaluating the degree of size degradation and degree of metallization of iron ores, when reduced under conditions resembling those prevailing in shaft direct-reduction processes.
ISO 11257:2015 is applicable to lump ores and hot-bonded pellets.
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Aug. 15, 2015
ISO/TC 102/SC 3