# ISO 4577:1983 — Withdrawn and superseded ISO standards

For ISO 4577:1983, item title is Plastics — Polypropylene and propylene-copolymers — Determination of thermal oxidative stability in air — Oven method; status code is 9599; successor is ISO 4577:2019; withdrawn / published date is 1983-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4577:1983 _(verified: appears in the quote below)_
- **Item title:** Plastics — Polypropylene and propylene-copolymers — Determination of thermal oxidative stability in air — Oven method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4577:2019
- **Withdrawn / published date:** 1983-08-01 _(verified: appears in the quote below)_

## What the source says

> 10501,IS,,ISO 4577:1983,Plastics — Polypropylene and propylene-copolymers — Determination of thermal oxidative stability in air — Oven method,Plastiques — Polypropylène et copolymères de propylène — Détermination de la stabilité à l'oxydation à chaud dans l'air — Méthode à l'étuve,1983-08-01,1,['83.080.20'],ISO/TC 61/SC 9,9599,,[70407],"['en','fr']",4,"<p>Specifies a method for the determination of the resistance of moulded test specimens of propylene and propylene-copolymers to acclerated ageing at specified temperatures in the range from 100 to 150oC in a forced draught oven. Rotating specimen holders are recommended.- The time to failure is determined by visual examination and taken as th

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).