ISO 21809-1:2018

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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)

ISO 21809-1:2018 is an international standard that specifies requirements for coatings on buried or submerged pipelines. The standard applies to the petroleum and natural gas industries.