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ISO/FDIS 21809-4

Oil and gas industries including lower carbon energy — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 4: Polyethylene coatings (2-layer PE)

General information

50.00     Jul 11, 2025

ISO

ISO/TC 67/SC 2

International Standard

75.200  

Scope

ISO 21809-4:2009 specifies the requirements for qualification, application, inspection, testing, handling and storage of materials for plant application of two-layer polyethylene coatings (2-layer PE) applied externally for the corrosion protection of bare steel pipe for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 21809-4:2009

NOW

IN_DEVELOPMENT
ISO/FDIS 21809-4
50.00 Final text received or FDIS registered for formal approval
Jul 11, 2025