GB/T 46446.1-2025 in English

This standard specifies the technical requirements for coatings and linings inside carbon steel process vessels within the petroleum, petrochemical, and natural gas industries. It outlines the necessary criteria for materials, application methods, and performance characteristics to ensure the integrity and durability of internal coatings. The document provides guidelines for the selection and use of appropriate coating systems, including testing procedures and acceptance criteria. It also addresses the environmental and operational conditions that may affect the performance of these coatings. The standard aims to promote consistency and quality in the application of internal coatings across the specified industries.