# ISO 30024:2009 — Withdrawn and superseded ISO standards

For ISO 30024:2009, item title is Animal feeding stuffs — Determination of phytase activity; status code is 9599; successor is ISO 30024:2024; withdrawn / published date is 2009-07-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 30024:2009 _(verified: appears in the quote below)_
- **Item title:** Animal feeding stuffs — Determination of phytase activity _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 30024:2024
- **Withdrawn / published date:** 2009-07-02 _(verified: appears in the quote below)_

## What the source says

> 45787,IS,,ISO 30024:2009,Animal feeding stuffs — Determination of phytase activity,Aliments des animaux — Détermination de l'activité phytasique,2009-07-02,1,['65.120'],ISO/TC 34/SC 10,9599,,[80848],"['en','fr']",12,<p>ISO 30024:2009 specifies the determination of phytase activity in feed samples.</p><p>The method does not distinguish between phytase added as a feed additive and endogenous phytase already present in the feed materials.</p><p>The method cannot be used to evaluate or compare the <i>in vivo</i> efficacy of the phytase product. It is not a predictive method of the <i>in vivo</i> efficacy of phytases present on the market as they can develop different <i>in vivo</i> efficacy per

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).