# ISO 4591:1979 — Withdrawn and superseded ISO standards

For ISO 4591:1979, item title is Plastics — Film and sheeting — Determination of average thickness of a sample and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness); status code is 9599; successor is ISO 4591:1992; withdrawn / published date is 1979-10-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4591:1979 _(verified: appears in the quote below)_
- **Item title:** Plastics — Film and sheeting — Determination of average thickness of a sample and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4591:1992
- **Withdrawn / published date:** 1979-10-01 _(verified: appears in the quote below)_

## What the source says

> 10526,IS,,ISO 4591:1979,"Plastics — Film and sheeting — Determination of average thickness of a sample and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness)","Plastiques — Film et feuille — Détermination de l'épaisseur moyenne d'un échantillon, et de l'épaisseur moyenne d'un rouleau, ainsi que de sa surface par unité de masse, par mesures gravimétriques (épaisseur gravimétrique)",1979-10-01,1,['83.140.10'],ISO/TC 61/SC 11,9599,,[10527],"['en','fr']",3,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).