DIN EN ISO 21809-3

English -- Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings (ISO 21809-3:2016); English version EN ISO 21809-3:2016;
German -- Erdoel- und Erdgasindustrie - Umhuellungen fuer erd- und wasserverlegte Rohrleitungen in Transportsystemen - Teil 3: Nachumhuellung der Schweissverbindungen (ISO 21809-3:2016); Englische Fassung EN ISO 21809-3:2016

Year: 2016

Abstract: Scope: This part of ISO 21809 specifies requirements for field joint coating of seamless or welded steel pipes for buried and submerged sections of pipeline transportation systems used in the petroleum, petrochemical and natural gas industries as defined in ISO 13623. This part of ISO 21809 specifies the qualification, application and testing of the corrosion protection coatings applied to steel surfaces left bare after the joining of pipes and fittings (components) by welding. This part of ISO 21809 defines and codifies in Table 1 the different types of field joint coatings for pipelines. This part of ISO 21809 does not address requirements for additional mechanical protection, for thermal insulation or for joint infills of concrete weight-coated pipes. NOTE Field joints of pipes and fittings coated in accordance with this part of ISO 21809 are considered suitable for further protection by means of cathodic protection.
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