# ISO 5548:1980 — Withdrawn and superseded ISO standards

For ISO 5548:1980, item title is Caseins and caseinates — Determination of lactose content — Photometric method; status code is 9599; successor is ISO 5548:2004 | ISO/WD 5548; withdrawn / published date is 1980-10-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5548:1980 _(verified: appears in the quote below)_
- **Item title:** Caseins and caseinates — Determination of lactose content — Photometric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 5548:2004 | ISO/WD 5548
- **Withdrawn / published date:** 1980-10-01 _(verified: appears in the quote below)_

## What the source says

> 11613,IS,,ISO 5548:1980,Caseins and caseinates — Determination of lactose content — Photometric method,Caséines et caséinates — Détermination de la teneur en lactose — Méthode photométrique,1980-10-01,1,['67.100.99'],ISO/TC 34/SC 5,9599,,"[40466,11614]","['en','fr']",3,<p>Specifies a method for determining the lactose and other soluble carbohydrates content of caseins and caseinates containing less than 2.0 % of total soluble carbohydrates. Before precipitation of the casein with acetic acid and sodium acetate solution and subsequent filtration a test portion is dissolved either in hot water in the case of caseinates or in hot water with the addition of sodium hydrogen carbonate in the case

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).