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ISO 21809-4:2009

Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 4: Polyethylene coatings (2-layer PE)

Publication date:   Nov 5, 2009

95.99   Withdrawal of Standard   Feb 6, 2026

General information

95.99   Withdrawal of Standard   Feb 6, 2026

ISO

ISO/TC 67/SC 2 Pipeline transportation systems

International Standard

75.200   Petroleum products and natural gas handling equipment

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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

NOW

WITHDRAWN
ISO 21809-4:2009
95.99 Withdrawal of Standard
Feb 6, 2026

REVISED BY

PUBLISHED
ISO 21809-4:2026