# ISO 417:1993 — Withdrawn and superseded ISO standards

For ISO 417:1993, item title is Photography — Determination of residual thiosulfate and other related chemicals in processed photographic materials — Methods using iodine-amylose, methylene blue and silver sulfide; status code is 9599; successor is ISO 18917:1999; withdrawn / published date is 1993-04-29, recorded from its source on 2026-08-05.

- **Identifier:** ISO 417:1993 _(verified: appears in the quote below)_
- **Item title:** Photography — Determination of residual thiosulfate and other related chemicals in processed photographic materials — Methods using iodine-amylose, methylene blue and silver sulfide _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 18917:1999
- **Withdrawn / published date:** 1993-04-29 _(verified: appears in the quote below)_

## What the source says

> 4425,IS,,ISO 417:1993,"Photography — Determination of residual thiosulfate and other related chemicals in processed photographic materials — Methods using iodine-amylose, methylene blue and silver sulfide","Photographie — Détermination du thiosulfate résiduel et d'autres produits chimiques dans les produits photographiques traités — Méthodes à l'iode-amylose, au bleu de méthylène et au sulfure d'argent",1993-04-29,2,"['37.040.20','37.040.30']",ISO/TC 42,9599,[4424],[28235],['en'],18,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).