# ISO 7685:2019 — Withdrawn and superseded ISO standards

For ISO 7685:2019, item title is Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial ring stiffness; status code is 9599; successor is ISO 7685:2026; withdrawn / published date is 2019-07-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7685:2019 _(verified: appears in the quote below)_
- **Item title:** Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial ring stiffness _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7685:2026
- **Withdrawn / published date:** 2019-07-11 _(verified: appears in the quote below)_

## What the source says

> 71168,IS,,ISO 7685:2019,Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial ring stiffness,Tubes en plastiques thermodurcissables renforcés de verre (PRV) — Détermination de la rigidité annulaire initiale,2019-07-11,2,['23.040.20'],ISO/TC 138/SC 6,9599,[14504],[89596],['en'],8,"<p>This document specifies methods for determining the initial ring stiffness of glass-reinforced thermosetting plastics (GRP) pipes. Two methods are given (constant load and constant deflection), and within the specified deflection limits, each is equally valid and can be used for any diameter.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).