# ISO 21809-1:2011 — Withdrawn and superseded ISO standards

For ISO 21809-1:2011, item title is Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP); status code is 9599; successor is ISO 21809-1:2018; withdrawn / published date is 2011-06-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 21809-1:2011 _(verified: appears in the quote below)_
- **Item title:** Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21809-1:2018
- **Withdrawn / published date:** 2011-06-21 _(verified: appears in the quote below)_

## What the source says

> 35997,IS,,ISO 21809-1:2011,Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP),Industries du pétrole et du gaz naturel — Revêtements externes des conduites enterrées ou immergées utilisées dans les systèmes de transport par conduites — Partie 1: Revêtements à base de polyoléfines (PE tricouche et PP tricouche),2011-06-21,1,['75.200'],ISO/TC 67/SC 2,9599,,[65345],"['en','fr']",54,<p>ISO 21809-1:2011 specifies requirements of plant-applied external three-layer polyethylene- and polypropylene-based coatings for corrosion protection of welded and seamless steel

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).