# ISO 5544:1978 — Withdrawn and superseded ISO standards

For ISO 5544:1978, item title is Caseins — Determination of ' fixed ash ' (Reference method); status code is 9599; successor is ISO 5544:2008; withdrawn / published date is 1978-06-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5544:1978 _(verified: appears in the quote below)_
- **Item title:** Caseins — Determination of ' fixed ash ' (Reference method) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 5544:2008
- **Withdrawn / published date:** 1978-06-01 _(verified: appears in the quote below)_

## What the source says

> 11609,IS,,ISO 5544:1978,Caseins — Determination of ' fixed ash ' (Reference method),Caséines — Détermination des «cendres fixes» (Méthode de référence),1978-06-01,1,['67.100.99'],ISO/TC 34/SC 5,9599,,[46332],"['en','fr']",2,"<p>Covers caseins obtained by acid precipitation or lactic fermentation, ammonium caseinates, their mxtures with rennet casein and with caseinates, and caseins of unknown type. The principle of determination consists in incinerating a test portion at a temperature of 825 +/- 25 degrees centigrade in the presence of magnesium acetate to bind all phosphorus af organic origin, weighing the residue and subtracting the mass of ash originating from the magnesium acetate.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).