# ISO 4658:1999 — Withdrawn and superseded ISO standards

For ISO 4658:1999, item title is Acrylonitrile-butadiene rubber (NBR) —  Evaluation procedure; status code is 9599; successor is ISO 4658:2020 | ISO/DIS 4658; withdrawn / published date is 1999-12-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4658:1999 _(verified: appears in the quote below)_
- **Item title:** Acrylonitrile-butadiene rubber (NBR) —  Evaluation procedure _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4658:2020 | ISO/DIS 4658
- **Withdrawn / published date:** 1999-12-02 _(verified: appears in the quote below)_

## What the source says

> 27917,IS,,ISO 4658:1999,Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure,Caoutchouc acrylonitrile-butadiène (NBR) — Méthode d'évaluation,1999-12-02,3,['83.060'],ISO/TC 45/SC 3,9599,[10629],"[77458,55618]","['en','fr']",9,"<p>This International Standard specifies, for acrylonitrile-butadiene rubbers (NBRs):</p><p>_ physical and chemical tests on raw rubbers;</p><p>_ standard materials, a standard test formulation, equipment and processing methods for evaluating the</p><p>vulcanization characteristics.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).