# ISO 7684:1997 — Withdrawn and superseded ISO standards

For ISO 7684:1997, item title is Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the creep factor under dry conditions; status code is 9599; successor is ISO/WD 7684; withdrawn / published date is 1997-01-22, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7684:1997 _(verified: appears in the quote below)_
- **Item title:** Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the creep factor under dry conditions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/WD 7684
- **Withdrawn / published date:** 1997-01-22 _(verified: appears in the quote below)_

## What the source says

> 14503,IS,,ISO 7684:1997,Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the creep factor under dry conditions,Systèmes de canalisations en matières plastiques — Tubes plastiques thermodurcissables renforcés de verre (PRV) — Détermination du coefficient de fluage en condition sèche,1997-01-22,1,['23.040.20'],ISO/TC 138/SC 6,9599,,[65188],"['en','fr']",11,<p>Method for determining the dry creep factor of glass-reinforced plastics pipes. Applicable to pipes with an initial specific ring stiffness of not less than 630 N per square metres. Technically identical to EN 761:1994.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).