# ISO 4226:2007 — Withdrawn and superseded ISO standards

For ISO 4226:2007, item title is Air quality — General aspects — Units of measurement; replacement named by the register is ISO 4226:2026; publication date is 2007-11-29, verified against its source on 2026-09-16.

- **Identifier:** ISO 4226:2007 _(verified: appears in the quote below)_
- **Item title:** Air quality — General aspects — Units of measurement _(verified: appears in the quote below)_
- **Replacement named by the register:** ISO 4226:2026 _(verified: appears in its own passage below)_
- **Publication date:** 2007-11-29 _(verified: appears in the quote below)_

## What the source says

> 44994,IS,,ISO 4226:2007,Air quality — General aspects — Units of measurement,Qualité de l'air — Aspects généraux — Unités de mesurage,2007-11-29,3,"['01.060','13.040.01']",ISO/TC 146/SC 4,9599,[10027],[87820],['en'],3

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Replacement named by the register

> 87820,IS,,ISO 4226:2026,Air quality — General aspects — Quantities and associated units for reporting results of air quality measurements,Qualité de l'air — Aspects généraux — Grandeurs et unités associées pour consigner les résultats des mesurages de la qualité de l'air,2026-09-15,4,"['01.060','13.040.01']",ISO/TC 146/SC 4,6060,[44994],,['en'],4

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-09-16. Review by: 2027-03-15.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).