# ISO 2931:1983 — Withdrawn and superseded ISO standards

For ISO 2931:1983, item title is Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxide coatings by measurement of admittance or impedance; status code is 9599; successor is ISO 2931:2010 | ISO/WD 2931; withdrawn / published date is 1983-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2931:1983 _(verified: appears in the quote below)_
- **Item title:** Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxide coatings by measurement of admittance or impedance _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 2931:2010 | ISO/WD 2931
- **Withdrawn / published date:** 1983-07-01 _(verified: appears in the quote below)_

## What the source says

> 7978,IS,,ISO 2931:1983,Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxide coatings by measurement of admittance or impedance,Anodisation de l'aluminium et de ses alliages — Évaluation de la qualité des couches anodiques colmatées par mesurage de l'admittance ou de l'impédance,1983-07-01,2,['25.220.20'],ISO/TC 79/SC 2,9599,,"[51488,1357]","['en','fr']",3,"<p>This test is intended to give a quick, non-destructive assessment of the quality of sealed anodic oxide coatings and is therefore very suitable as a routine production control. It is also suitable for use as an acceptance test.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).