# ISO 417:1977 — Withdrawn and superseded ISO standards

For ISO 417:1977, item title is Photography — Determination of thiosulphate and other residual chemicals in processed photographic films, plates and papers — Methylene blue photometric method and silver sulphide densitometric method; status code is 9599; successor is ISO 417:1993; withdrawn / published date is 1977-10-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 417:1977 _(verified: appears in the quote below)_
- **Item title:** Photography — Determination of thiosulphate and other residual chemicals in processed photographic films, plates and papers — Methylene blue photometric method and silver sulphide densitometric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 417:1993
- **Withdrawn / published date:** 1977-10-01 _(verified: appears in the quote below)_

## What the source says

> 4424,IS,,ISO 417:1977,"Photography — Determination of thiosulphate and other residual chemicals in processed photographic films, plates and papers — Methylene blue photometric method and silver sulphide densitometric method","Photographie — Détermination du thiosulfate et d'autres produits chimiques résiduels dans les films, plaques et papiers photographiques développés — Méthode photométrique au bleu de méthylène et méthode densitométrique au sulfure d'argent",1977-10-01,1,"['37.040.20','37.040.30']",ISO/TC 42,9599,,[4425],['en'],5,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).