# ISO 4491-1:1989 — Withdrawn and superseded ISO standards

For ISO 4491-1:1989, item title is Metallic powders — Determination of oxygen content by reduction methods — Part 1: General guidelines; status code is 9599; successor is ISO 4491-1:2023; withdrawn / published date is 1989-09-28, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4491-1:1989 _(verified: appears in the quote below)_
- **Item title:** Metallic powders — Determination of oxygen content by reduction methods — Part 1: General guidelines _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4491-1:2023
- **Withdrawn / published date:** 1989-09-28 _(verified: appears in the quote below)_

## What the source says

> 10384,IS,,ISO 4491-1:1989,Metallic powders — Determination of oxygen content by reduction methods — Part 1: General guidelines,Poudres métalliques — Dosage de l'oxygène par les méthodes de réduction — Partie 1: Directives générales,1989-09-28,1,['77.160'],ISO/TC 119/SC 2,9599,,[85817],"['en','fr']",3,"<p>Gives some recommendations for the correct interpretation of the results obtained. The test methods are applicable generally to all powders of metals, alloys, carbides and mixtures thereof. The constituents of the powder shall be non-volatile and free of lubricant or organic binder. The limitations of the methods which depend upon the nature of the analysed metal are discussed in clause 4.</

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).