ISO 11257:2022

International Standard   Current Edition · Approved on 22 March 2022

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

ISO 11257:2022 Files

English 9 Pages
Current Edition
OMR 33.4

ISO 11257:2022 Scope

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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