# ISO 6145-7:2009 — Withdrawn and superseded ISO standards

For ISO 6145-7:2009, item title is Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 7: Thermal mass-flow controllers; status code is 9599; successor is ISO 6145-7:2018; withdrawn / published date is 2009-03-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6145-7:2009 _(verified: appears in the quote below)_
- **Item title:** Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 7: Thermal mass-flow controllers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6145-7:2018
- **Withdrawn / published date:** 2009-03-18 _(verified: appears in the quote below)_

## What the source says

> 45471,IS,,ISO 6145-7:2009,Gas analysis — Preparation of calibration gas mixtures using dynamic volumetric methods — Part 7: Thermal mass-flow controllers,Analyse des gaz — Préparation des mélanges de gaz pour étalonnage à l'aide de méthodes volumétriques dynamiques — Partie 7: Régulateurs thermiques de débit massique,2009-03-18,2,['71.040.40'],ISO/TC 158,9599,[33363],[73212],"['en','fr']",15,"<p>ISO 6145-7:2009 specifies a method for continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by use of commercially available thermal mass-flow controllers. </p><p>If this method is employed for the preparation of calibration gas m

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).