# ISO 6143:2001 — Withdrawn and superseded ISO standards

For ISO 6143:2001, item title is Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures; status code is 9599; successor is ISO 6143:2025; withdrawn / published date is 2001-05-31, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6143:2001 _(verified: appears in the quote below)_
- **Item title:** Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6143:2025
- **Withdrawn / published date:** 2001-05-31 _(verified: appears in the quote below)_

## What the source says

> 24665,IS,,ISO 6143:2001,Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures,Analyse des gaz — Méthodes comparatives pour la détermination et la vérification de la composition des mélanges de gaz pour étalonnage,2001-05-31,2,['71.040.40'],ISO/TC 158,9599,[12374],[85579],"['en','fr']",33,"<p>This International Standard provides methods for</p><p>_ determining the composition of a calibration gas mixture by comparison with appropriate reference gas</p><p>mixtures,</p><p>_ calculating the uncertainty of the composition of a calibration gas mixture in relation to the known uncertainty of</p><p>the composition of the reference gas mixtures wit

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).