# ISO 422:1976 — Withdrawn and superseded ISO standards

For ISO 422:1976, item title is Photographic grade p-methylaminophenol sulphate — Specification; status code is 9599; successor is ISO 422:1994; withdrawn / published date is 1976-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 422:1976 _(verified: appears in the quote below)_
- **Item title:** Photographic grade p-methylaminophenol sulphate — Specification _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 422:1994
- **Withdrawn / published date:** 1976-07-01 _(verified: appears in the quote below)_

## What the source says

> 4430,IS,,ISO 422:1976,Photographic grade p-methylaminophenol sulphate — Specification,Sulfate de p-méthylaminophénol de qualité photographique — Spécifications,1976-07-01,1,['37.040.30'],ISO/TC 42,9599,,[20281],"['en','fr']",7,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).