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ISO 11257:2022

ISO 11257:2022

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

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General Information

Status : Active

Standard Type : Main

Document No : ISO 11257:2022

Document Year : 2022

Pages : 9

Edition : 4

Section Volume : Physical testing (ISO/TC 102/SC 3.)

ICS : Iron ores (73.060.10)

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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