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Status : Withdrawn
Standard Type : Main
Document No : ISO 11257:2007
Document Year : 2007
Pages : 8
Edition : 2
Section Volume : Physical testing (ISO/TC 102/SC 3.)
ISO 11257:2007 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 11257:2007 is applicable to lump ores and hot-bonded pellets.