# ISO 4574:1978 — Withdrawn and superseded ISO standards

For ISO 4574:1978, item title is Plastics — PVC resins for general use — Determination of hot plasticizer absorption; status code is 9599; successor is ISO 4574:2019; withdrawn / published date is 1978-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4574:1978 _(verified: appears in the quote below)_
- **Item title:** Plastics — PVC resins for general use — Determination of hot plasticizer absorption _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4574:2019
- **Withdrawn / published date:** 1978-09-01 _(verified: appears in the quote below)_

## What the source says

> 10497,IS,,ISO 4574:1978,Plastics — PVC resins for general use — Determination of hot plasticizer absorption,Plastiques — Résines de polychlorure de vinyle à usages généraux — Détermination de la prise de plastifiant à chaud,1978-09-01,1,['83.080.20'],ISO/TC 61/SC 9,9599,,[70417],"['en','fr']",7,"<p>Conditioning of 200 parts of plasticiser in the bowl of a planetary mixer at a temperature of 75 C. Addition of 100 parts of the resin to be tested and mixing with the plasticizer. Taking of samples of this mixture at various times, removal of excess of plasticizer by centrifuging and determining the quantity of plasticizer absorbed by the polymer. Plotting a graph, from which can be determined fo

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).