# ISO 3627:1994 — Withdrawn and superseded ISO standards

For ISO 3627:1994, item title is Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite; status code is 9599; successor is ISO 3627:2001; withdrawn / published date is 1994-10-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3627:1994 _(verified: appears in the quote below)_
- **Item title:** Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3627:2001
- **Withdrawn / published date:** 1994-10-13 _(verified: appears in the quote below)_

## What the source says

> 20065,IS,,ISO 3627:1994,Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite,Photographie — Produits chimiques de traitement — Spécifications pour le métadisulfite de sodium anhydre,1994-10-13,2,['37.040.30'],ISO/TC 42,9599,[9061],[33088],['en'],5,<p>Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite and describes the tests to be used to determine the purity.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).