
Tracked Changes. Oil and gas industries including lower carbon energy. External coatings for buried or submerged pipelines used in pipeline transportation systems. Polyethylene coatings (2-layer PE).
STANDARD published on 19.2.2026
Designation standards: BS ISO 21809-4:2026-TC
Publication date standards: 19.2.2026
The number of pages: 174
Approximate weight : 553 g (1.22 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 41178 2 Status: Definitive