# ISO 7685:1998 — Withdrawn and superseded ISO standards

For ISO 7685:1998, item title is Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial specific ring stiffness; status code is 9599; successor is ISO 7685:2019; withdrawn / published date is 1998-07-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7685:1998 _(verified: appears in the quote below)_
- **Item title:** Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial specific ring stiffness _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7685:2019
- **Withdrawn / published date:** 1998-07-16 _(verified: appears in the quote below)_

## What the source says

> 14504,IS,,ISO 7685:1998,Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of initial specific ring stiffness,Systèmes de canalisation en matières plastiques — Tubes en plastiques thermodurcissables renforcés de verre (PRV) — Détermination de la rigidité annulaire spécifique initiale,1998-07-16,1,['23.040.20'],ISO/TC 138/SC 6,9599,,[71168],['en'],7,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).