# ISO 6145-6:1986 — Withdrawn and superseded ISO standards

For ISO 6145-6:1986, item title is Gas analysis — Preparation of calibration gas mixtures — Dynamic volumetric methods — Part 6: Sonic orifices; status code is 9599; successor is ISO 6145-6:2003; withdrawn / published date is 1986-10-09, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6145-6:1986 _(verified: appears in the quote below)_
- **Item title:** Gas analysis — Preparation of calibration gas mixtures — Dynamic volumetric methods — Part 6: Sonic orifices _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6145-6:2003
- **Withdrawn / published date:** 1986-10-09 _(verified: appears in the quote below)_

## What the source says

> 12381,IS,,ISO 6145-6:1986,Gas analysis — Preparation of calibration gas mixtures — Dynamic volumetric methods — Part 6: Sonic orifices,Analyse des gaz — Préparation des mélanges de gaz pour étalonnage — Méthodes volumétriques dynamiques — Partie 6: Orifices avec écoulement sonique,1986-10-09,1,['71.040.40'],ISO/TC 158,9599,,[28433],"['en','fr']",6,"<p>Describes the method using mixtures with one or more component(s), with a volume radio equal to or greater than 0,1 %, the repeatability of which on the concentration of each of the components is approximalety 0,5 % in relative value.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).