# ISO 6145-6:2003 — Withdrawn and superseded ISO standards

For ISO 6145-6:2003, item title is Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 6: Critical orifices; status code is 9599; successor is ISO 6145-6:2017; withdrawn / published date is 2003-05-08, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6145-6:2003 _(verified: appears in the quote below)_
- **Item title:** Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 6: Critical orifices _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6145-6:2017
- **Withdrawn / published date:** 2003-05-08 _(verified: appears in the quote below)_

## What the source says

> 28433,IS,,ISO 6145-6:2003,Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 6: Critical orifices,Analyse des gaz — Préparation des mélanges de gaz pour étalonnage à l'aide de méthodes volumétriques dynamiques — Partie 6: Orifices critiques,2003-05-08,2,['71.040.40'],ISO/TC 158,9599,[12381],[60247],"['en','fr']",11,"<p>ISO 6145-6:2003 specifies a method for the continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by use of critical orifice systems. By selection of appropriate combinations of orifices and with the use of pure gases, the volume fraction of the calibration componen

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).