NF EN ISO 21809-1

Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)

Le présent document spécifie les exigences relatives aux revêtements externes à base de polyéthylène et polypropylène tricouches appliqués en usine pour la protection contre la corrosion des tubes en acier utilisés dans les conduites de pétrole et de gaz naturel. Il définit les informations à fournir par l''acheteur, la classification, le processus de qualification, la qualification du matériau de revêtement, les processus de qualification du revêtement et la spécification du mode opératoire d''application du revêtement, les préparations du revêtement, le marquage, la manutention et le stockage.

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