# ISO 2506:1981 — Withdrawn and superseded ISO standards

For ISO 2506:1981, item title is Polyethylene pipes (PE) — Longitudinal reversion — Test methods and specification; status code is 9599; successor is ISO 2505-1:1994 | ISO 2505-2:1994; withdrawn / published date is 1981-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2506:1981 _(verified: appears in the quote below)_
- **Item title:** Polyethylene pipes (PE) — Longitudinal reversion — Test methods and specification _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 2505-1:1994 | ISO 2505-2:1994
- **Withdrawn / published date:** 1981-12-01 _(verified: appears in the quote below)_

## What the source says

> 7437,IS,,ISO 2506:1981,Polyethylene pipes (PE) — Longitudinal reversion — Test methods and specification,Tubes en polyéthylène (PE) — Retrait longitudinal à chaud — Méthodes d'essai et spécification,1981-12-01,2,['23.040.20'],ISO/TC 138/SC 5,9599,,"[7435,7436]","['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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).