# ISO 903:1976 — Withdrawn and superseded ISO standards

For ISO 903:1976, item title is Aluminium oxide primarily used for the production of aluminium — Determination of untamped density; status code is 9599; successor is ISO/WD 903; withdrawn / published date is 1976-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 903:1976 _(verified: appears in the quote below)_
- **Item title:** Aluminium oxide primarily used for the production of aluminium — Determination of untamped density _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/WD 903
- **Withdrawn / published date:** 1976-09-01 _(verified: appears in the quote below)_

## What the source says

> 5307,IS,,ISO 903:1976,Aluminium oxide primarily used for the production of aluminium — Determination of untamped density,Oxyde d'aluminium principalement utilisé pour la production de l'aluminium — Détermination de la densité apparente,1976-09-01,1,['71.100.10'],ISO/TC 226,9599,,[36722],"['en','fr']",2,<p>The method based on the determination of the mass of a known volume after a free fall of the product without vibration in a stable container. Expression of the apparent density by division of this mass by the mass of a equivalent volume of water. Replaces ISO Recommendation R 903-1968.</p>

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).