# ISO/R 458:1965 — Withdrawn and superseded ISO standards

For ISO/R 458:1965, item title is Plastics — Determination of stiffness in torsion as a function of temperature; status code is 9599; successor is ISO 458-2:1985 | ISO 458-1:1985; withdrawn / published date is 1965-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO/R 458:1965 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of stiffness in torsion as a function of temperature _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 458-2:1985 | ISO 458-1:1985
- **Withdrawn / published date:** 1965-11-01 _(verified: appears in the quote below)_

## What the source says

> 4481,R,,ISO/R 458:1965,Plastics — Determination of stiffness in torsion as a function of temperature,Matières plastiques — Détermination de la rigidité en torsion en fonction de la température,1965-11-01,1,['83.080.01'],ISO/TC 61/SC 2,9599,,"[4483,4482]","['en','fr']",6,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).