# ISO 11257:2015 — Withdrawn and superseded ISO standards

For ISO 11257:2015, item title is Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization; status code is 9599; successor is ISO 11257:2022; withdrawn / published date is 2015-08-17, recorded from its source on 2026-08-05.

- **Identifier:** ISO 11257:2015 _(verified: appears in the quote below)_
- **Item title:** Iron ores for shaft direct-reduction feedstocks — Determination of the low-temperature reduction-disintegration index and degree of metallization _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 11257:2022
- **Withdrawn / published date:** 2015-08-17 _(verified: appears in the quote below)_

## What the source says

> 62139,IS,,ISO 11257:2015,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,2015-08-17,3,['73.060.10'],ISO/TC 102/SC 3,9599,[38099],[82820],['en'],9,"<p>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.</p><p>ISO 11257:2

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).