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NACE SP0399-2024
Plant-Applied External Coal Tar Enamel Pipe Coating Systems: Application, Performance, and Quality Control
This standard establishes minimum requirements to ensure proper application and performance of a plant-applied coal tar enamel system to the external surfaces of pipe. Included are methods for qualifying and controlling the quality of a coal tar enamel system, guidelines for its proper application, and inspection and repair techniques to ensure its long-term performance.
NACE International [nace]