# ISO 527-4:2021 — Withdrawn and superseded ISO standards

For ISO 527-4:2021, item title is Plastics — Determination of tensile properties — Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites; status code is 9599; successor is ISO 527-4:2023; withdrawn / published date is 2021-12-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 527-4:2021 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of tensile properties — Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 527-4:2023
- **Withdrawn / published date:** 2021-12-13 _(verified: appears in the quote below)_

## What the source says

> 80369,IS,,ISO 527-4:2021,Plastics — Determination of tensile properties — Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites,Plastiques — Détermination des propriétés en traction — Partie 4: Conditions d'essai pour les composites plastiques renforcés de fibres isotropes et orthotropes,2021-12-13,2,['83.120'],ISO/TC 61/SC 13,9599,[4595],[85809],"['en','fr']",27,"<p>This document specifies the test conditions for the determination of the tensile properties of isotropic and orthotropic fibre-reinforced plastic composites, based upon the general principles given in ISO 527-1.</p><p>NOTE 1 Unidirectional reinforced materials are covered by ISO 527-5.</p><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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).