ISO 11257:2022

Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization

Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization

Digital Document2022 edition2022Purchase Options

Referenced standards

ISO 11323ISO 16878ISO 2597-1ISO 2597-2ISO 3082ISO 3310-1ISO 3310-2ISO 5416
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ISO 11257:2022

Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization

Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization

This document 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.

This document is applicable to lump ores and hot-bonded pellets.

Edition2022
Published Date2022
Published ByInternational Standardization Organisation
Page Count9