# ISO 2722:1997 — Withdrawn and superseded ISO standards

For ISO 2722:1997, item title is Vitreous and porcelain enamels — Determination of resistance to citric acid at room temperature; status code is 9599; successor is ISO 28706-1:2008; withdrawn / published date is 1997-01-30, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2722:1997 _(verified: appears in the quote below)_
- **Item title:** Vitreous and porcelain enamels — Determination of resistance to citric acid at room temperature _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 28706-1:2008
- **Withdrawn / published date:** 1997-01-30 _(verified: appears in the quote below)_

## What the source says

> 1463,IS,,ISO 2722:1997,Vitreous and porcelain enamels — Determination of resistance to citric acid at room temperature,Émaux vitrifiés — Détermination de la résistance à l'acide citrique à température ambiante,1997-01-30,2,['25.220.50'],ISO/TC 107,9599,[7693],[44893],"['en','fr']",6,"<p>Specifies a method of test for the determination of acid resistance, and also a method for classifying the results. ISO 2722 is not suitable for matt enamels, enamels that come in contact with hot and strong acids and enamelled articles that are used in the chemical industry.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).