ISO 11257:2015Withdrawn

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

Minerais de fer pour charges utilisées dans les procédés par réduction directe — Détermination de l'indice de désintégration par réduction à basse température et du degré de métallisation

This edition has been replaced by ISO 11257:2022.

Abstract / scope

ISO 11257:2015 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 11257:2015 is applicable to lump ores and hot-bonded pellets.

Life cycle

Replaces

ISO 11257:2007WithdrawnIron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallizationInternational Standard · Published 31 Oct 2007 · ISO/TC 102/SC 3

Replaced by

ISO 11257:2022PublishedIron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallizationInternational Standard · Published 22 Mar 2022 · ISO/TC 102/SC 3