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ISO 21809-11:2019

Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 11: Coatings for in-field application, coating repairs and rehabilitation
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ISO 21809-11:2019

Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 11: Coatings for in-field application, coating repairs and rehabilitation

PUBLISH DATE 2019
ISO 21809-11:2019

This document specifies the criteria and requirements for the in-field application of coatings, coating repair and coating rehabilitation on buried pipelines.

This document specifies:

  • coating assessment (new and existing);
  • removal of degraded coatings;
  • surface preparation;
  • on site or in situ application of external coatings.

It is applicable to petroleum or natural gas pipelines, with or without a cathodic protection system.

The pipelines could be operational during the removal, preparation and application process.

This document states qualification/testing for field contractors and site applied coatings to all of the pipeline components, including bends, tees, fittings, valves and interfaces between different coatings in soil-to-air pipeline sections.

Technical and performance characteristics of the repair and rehabilitation coating materials are referenced to ISO 21809-3.

The coating of field joints is outside the scope of this document. Field joint coatings are dealt with in ISO 21809-3.

This document excludes the application of coatings when the pipeline is immersed (submerged).

SDO ISO: International Organization for Standardization
Document Number ISO 21809
Publication Date April 1, 2019
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 67/SC 2
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