NORSOK M-501 is a worldwide used standard on offshore steel structure protective coatings,representing the strictest technical specifications for corrosion testing of heavy-duty protective coatings.This article,based on the new version of NORSOK M501:2022(7th edition)and combined with its main modification points,discusses the requirements for protective coating of subsea manifold to provide certain guidance for the coating design of subsea structures.
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