# ISO 28721-1:2008 — Withdrawn and superseded ISO standards

For ISO 28721-1:2008, item title is Vitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 1: Quality requirements for apparatus, components, appliances and accessories; status code is 9599; successor is ISO 28721-1:2019; withdrawn / published date is 2008-11-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO 28721-1:2008 _(verified: appears in the quote below)_
- **Item title:** Vitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 1: Quality requirements for apparatus, components, appliances and accessories _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 28721-1:2019
- **Withdrawn / published date:** 2008-11-20 _(verified: appears in the quote below)_

## What the source says

> 45036,IS,,ISO 28721-1:2008,"Vitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 1: Quality requirements for apparatus, components, appliances and accessories","Émaux vitrifiés — Appareils émaillés pour les installations industrielles — Partie 1: Exigences de qualité relatives aux appareillages, composants, appareils et accessoires",2008-11-20,1,['25.220.50'],ISO/TC 107,9599,,[75430],"['en','fr']",19,"<p>ISO 28721-1:2008 specifies the quality requirements for apparatus, components, appliances and accessories of glass-lined steel (including semi-crystallized enamel coatings) and glass-lined steel castings used for process plants. It specifies the quality requiremen

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).