# ISO 592:1981 — Withdrawn and superseded ISO standards

For ISO 592:1981, item title is Essential oils — Determination of optical rotation; status code is 9599; successor is ISO 592:1998; withdrawn / published date is 1981-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 592:1981 _(verified: appears in the quote below)_
- **Item title:** Essential oils — Determination of optical rotation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 592:1998
- **Withdrawn / published date:** 1981-07-01 _(verified: appears in the quote below)_

## What the source says

> 4690,IS,,ISO 592:1981,Essential oils — Determination of optical rotation,Huiles essentielles — Détermination du pouvoir rotatoire,1981-07-01,1,['71.100.60'],ISO/TC 54,9599,,[25311],"['en','fr']",2,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).