# ISO 6143:1981 — Withdrawn and superseded ISO standards

For ISO 6143:1981, item title is Gas analysis — Determination of composition of calibration gas mixtures — Comparison methods; status code is 9599; successor is ISO 6143:2001; withdrawn / published date is 1981-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6143:1981 _(verified: appears in the quote below)_
- **Item title:** Gas analysis — Determination of composition of calibration gas mixtures — Comparison methods _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6143:2001
- **Withdrawn / published date:** 1981-06-01 _(verified: appears in the quote below)_

## What the source says

> 12374,IS,,ISO 6143:1981,Gas analysis — Determination of composition of calibration gas mixtures — Comparison methods,Analyse des gaz — Détermination de la composition de mélanges de gaz pour étalonnage — Méthodes par comparaison,1981-06-01,1,['71.040.40'],ISO/TC 158,9599,,[24665],"['en','fr']",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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).