ISO 21809-4
Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 4: Polyethylene coatings (2-layer PE)
Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in Transportsystemen - Teil 4: Polyethylenumhüllungen (2-Lagen-PE)
Responsible national committee
NA 109-00-02 AA - Pipeline transportation systems - Mirror committee of ISO/TC 67/SC 2
Responsible international committee
ISO/TC 67/SC 2/WG 14 - External pipeline protective coatings