# ISO 1657:1975 — Withdrawn and superseded ISO standards

For ISO 1657:1975, item title is Raw rubber and rubber latex — Determination of iron content — 1,10- Phenanthroline photometric method; status code is 9599; successor is ISO 1657:1986; withdrawn / published date is 1975-01-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1657:1975 _(verified: appears in the quote below)_
- **Item title:** Raw rubber and rubber latex — Determination of iron content — 1,10- Phenanthroline photometric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1657:1986
- **Withdrawn / published date:** 1975-01-01 _(verified: appears in the quote below)_

## What the source says

> 6274,IS,,ISO 1657:1975,"Raw rubber and rubber latex — Determination of iron content — 1,10- Phenanthroline photometric method","Élastomères bruts et latex d'élastomère — Dosage du fer — Méthode photométrique à la phénanthroline-1,10",1975-01-01,1,['83.040.10'],ISO/TC 45,9599,,[6275],"['en','fr']",2,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).