# ISO 709:1980 — Withdrawn and superseded ISO standards

For ISO 709:1980, item title is Essential oils — Determination of ester value; status code is 9599; successor is ISO 709:2001; withdrawn / published date is 1980-05-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 709:1980 _(verified: appears in the quote below)_
- **Item title:** Essential oils — Determination of ester value _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 709:2001
- **Withdrawn / published date:** 1980-05-01 _(verified: appears in the quote below)_

## What the source says

> 4918,IS,,ISO 709:1980,Essential oils — Determination of ester value,Huiles essentielles — Détermination de l'indice d'ester,1980-05-01,1,['71.100.60'],ISO/TC 54,9599,,[28590],"['en','fr']",2,"<p>Hydrolysis of the esters by heating, under given conditions, with a standard volumetric potassium hydroxide ethanolic solution, and titration of the alkali in excess. The hydrolysis is carried out in a saponification flask.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).