# ISO 31-2:1978 — Withdrawn and superseded ISO standards

For ISO 31-2:1978, item title is Quantities and units of periodic and related phenomena; status code is 9599; successor is ISO 31-2:1992; withdrawn / published date is 1978-03-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 31-2:1978 _(verified: appears in the quote below)_
- **Item title:** Quantities and units of periodic and related phenomena _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 31-2:1992
- **Withdrawn / published date:** 1978-03-01 _(verified: appears in the quote below)_

## What the source says

> 3625,IS,,ISO 31-2:1978,Quantities and units of periodic and related phenomena,Grandeurs et unités de phénomènes périodiques et connexes,1978-03-01,1,['01.060'],ISO/TC 12,9599,,[3626],"['en','fr']",6,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).