# ISO/TR 20432:2007 — Withdrawn and superseded ISO standards

For ISO/TR 20432:2007, item title is Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement; status code is 9599; successor is ISO/TS 20432:2022; withdrawn / published date is 2007-11-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TR 20432:2007 _(verified: appears in the quote below)_
- **Item title:** Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/TS 20432:2022
- **Withdrawn / published date:** 2007-11-21 _(verified: appears in the quote below)_

## What the source says

> 39423,TR,,ISO/TR 20432:2007,Guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement,Lignes directrices pour la détermination de la résistance à long terme des géosynthétiques pour le renforcement du sol,2007-11-21,1,['59.080.70'],ISO/TC 221,9599,,[78712],['en'],31,"<p>ISO/TR 20432:2007 provides guidelines for the determination of the long-term strength of geosynthetics for soil reinforcement.</p><p>ISO/TR 20432:2007 describes a method of deriving reduction factors for geosynthetic soil reinforcement materials to account for creep and creep rupture, installation damage and weathering, and chemical and biological degradation. It is intended to provide

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).