The JJG (Traffic) 147-2020 standard specifies the technical requirements and detection methods of the intermediate coating film Adhesion Tester for water transportation engineering. The standard is applicable to the film Adhesion Tester used in the field of water transportation to ensure the long-term durability and Reliability of the film in water transportation projects such as ships and port facilities. The standard describes the structure, performance, calibration method and operation specifications of the tester in detail to ensure the accuracy and conformity of the test results. By implementing this standard, the adhesion performance of films used in water transportation projects can be effectively evaluated, the scientific basis is provided to ensure the coating mass, and the standardization and standardization of water transportation engineering film technology can be promoted.