ISO 2 2553-7 is an international standard on the determination of wet-film resistance of electrodeposited coatings. The standard specifies methods for measuring wet-film resistance on electrodeposited coatings to ensure coating mass and adaptability. The standard specifies experimental equipment, experimental procedures and data processing methods. Specifically, the standard requires that coatings be tested under specific conditions using a resistance meter or a conductivity detector table, and then the coating's wet-film resistance is calculated. The standard also specifies requirements for accuracy and Reliability of the measurement, as well as reporting of the test results. The standard applies to a wide range of electrodeposition coatings, including automotive parts, metal products, and electronic products.