The ASTM F941-99 (2019) standard procedure provides systematic guidance for the inspection of marine surface preparation and coating applications. The standard covers quality control and inspection requirements for surface pretreatment, coating application and curing to ensure that coating performance meets the stringent requirements of design specifications and the operating environment. It includes specific steps such as inspection equipment selection, detection methods, Coating thickness measurement, adhesion assessment, and defect identification, as well as detailed requirements for documentation of operating procedures and compliance inspections. The implementation of this regulation can improve the anti-corrosion performance and service life of marine coatings, reduce maintenance costs, and provide important technical support and reference for ship manufacturers, inspection agencies and coating suppliers.