ISO-11257 › Iron ores for shaft direct-reduction feedstocks - Determination of the low-temperature reduction-disintegration index and degree of metallization

ISO-11257 - 4TH EDITION - CURRENT
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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.

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73.060.10 (Iron ores)

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Document Number

ISO 11257:2022

Revision Level

4TH EDITION

Status

Current

Publication Date

March 1, 2022

Committee Number

ISO/TC 102/SC 3