NF ISO 21809-4
NF ISO 21809-4

NF ISO 21809-4

February 2026
Standard Current

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)

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Main informations

Collections

National standards and national normative documents

Publication date

February 2026

Number of pages

79 p.

Reference

NF ISO 21809-4

ICS Codes

75.200   Petroleum products and natural gas handling equipment

International kinship

ISO 21809-4:2026
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