The JJG (Transportation) 147-2020 standard specifies the technical requirements and detection methods of the intermediate coating film Adhesion Tester for water transportation engineering. The standard is suitable for the testing of film adhesion in the field of water transportation, mainly used to evaluate the film adhesion performance in water transportation engineering such as ships and port facilities. The standard describes the structure, performance requirements, calibration methods and operating procedures of the tester in detail to ensure the accuracy and Reliability of the test results. By implementing this standard, the adhesion of coatings can be effectively detected, providing a scientific basis for the quality control of film materials in water transportation engineering, and promoting the standardization and standardization of film technology in the water transportation industry.