# ISO 4226:1993 — Withdrawn and superseded ISO standards

For ISO 4226:1993, item title is Air quality — General aspects — Units of measurement; status code is 9599; successor is ISO 4226:2007; withdrawn / published date is 1993-12-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4226:1993 _(verified: appears in the quote below)_
- **Item title:** Air quality — General aspects — Units of measurement _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4226:2007
- **Withdrawn / published date:** 1993-12-02 _(verified: appears in the quote below)_

## What the source says

> 10027,IS,,ISO 4226:1993,Air quality — General aspects — Units of measurement,Qualité de l'air — Aspects généraux — Unités de mesurage,1993-12-02,2,"['01.060','13.040.01']",ISO/TC 146/SC 4,9599,[10026],[44994],"['en','fr']",2,"<p>Lays down the units and symbols to be used when reporting results of measurements. For general guidance on the International System of Units, reference should be made to ISO 1000-1992.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).