# ISO 2303:1990 — Withdrawn and superseded ISO standards

For ISO 2303:1990, item title is Isoprene rubber (IR) — Non-oil-extended, solution-polymerized types — Evaluation procedure; status code is 9599; successor is ISO 2303:2003; withdrawn / published date is 1990-05-03, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2303:1990 _(verified: appears in the quote below)_
- **Item title:** Isoprene rubber (IR) — Non-oil-extended, solution-polymerized types — Evaluation procedure _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 2303:2003
- **Withdrawn / published date:** 1990-05-03 _(verified: appears in the quote below)_

## What the source says

> 7133,IS,,ISO 2303:1990,"Isoprene rubber (IR) — Non-oil-extended, solution-polymerized types — Evaluation procedure",Caoutchouc isoprène (IR) — Types polymérisés en solution et non étendus à l'huile — Méthode d'évaluation,1990-05-03,3,['83.060'],ISO/TC 45/SC 3,9599,[7132],[29382],"['en','fr']",3,"<p>Defines standard materials, equipment and processing methods for evaluating the vulcanization characteristics of polyisopren rubber. Replaces the first edition (ISO 2302-1975).</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).