# ISO 31-12:1992 — Withdrawn and superseded ISO standards

For ISO 31-12:1992, item title is Quantities and units — Part 12: Characteristic numbers; status code is 9599; successor is ISO 80000-11:2008; withdrawn / published date is 1992-08-27, recorded from its source on 2026-08-05.

- **Identifier:** ISO 31-12:1992 _(verified: appears in the quote below)_
- **Item title:** Quantities and units — Part 12: Characteristic numbers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 80000-11:2008
- **Withdrawn / published date:** 1992-08-27 _(verified: appears in the quote below)_

## What the source says

> 3655,IS,,ISO 31-12:1992,Quantities and units — Part 12: Characteristic numbers,Grandeurs et unités — Partie 12: Nombres caractéristiques,1992-08-27,3,['01.060'],ISO/TC 12,9599,[3654],[31896],"['en','fr']",6,"<p>Gives name, symbol and definition for 25 selected characteristic numbers used for the description of transport phenomena.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).