# ISO 3271:1975 — Withdrawn and superseded ISO standards

For ISO 3271:1975, item title is Iron ores — Determination of tumbler strength; status code is 9599; successor is ISO 3271:1985; withdrawn / published date is 1975-02-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3271:1975 _(verified: appears in the quote below)_
- **Item title:** Iron ores — Determination of tumbler strength _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3271:1985
- **Withdrawn / published date:** 1975-02-01 _(verified: appears in the quote below)_

## What the source says

> 8499,IS,,ISO 3271:1975,Iron ores — Determination of tumbler strength,Minerais de fer — Essai au tambour,1975-02-01,1,['73.060.10'],ISO/TC 102,9599,,[8500],"['en','fr']",5,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).