# ISO 13968:1997 — Withdrawn and superseded ISO standards

For ISO 13968:1997, item title is Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility; status code is 9599; successor is ISO 13968:2008 | ISO/WD 13968; withdrawn / published date is 1997-10-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 13968:1997 _(verified: appears in the quote below)_
- **Item title:** Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 13968:2008 | ISO/WD 13968
- **Withdrawn / published date:** 1997-10-02 _(verified: appears in the quote below)_

## What the source says

> 23535,IS,,ISO 13968:1997,Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility,Systèmes de canalisations et de gaines en matières plastiques — Tubes en matières thermoplastiques — Détermination de la flexibilité annulaire,1997-10-02,1,['23.040.20'],ISO/TC 138/SC 5,9599,,"[43866,38767]","['en','fr']",3,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).