This test procedure defines a laboratory procedure for generating and evaluating filiform corrosion on painted aluminum wheels and painted aluminum wheel trim.

While this test was developed specifically for the testing of painted aluminum wheels and wheel trim it may be applicable to other components. The application owner will need to assess if this test generates filiform similar to that found in the relevant usage to ensure it will provide accurate data for the application.

To establish a uniform test method for the wheel and wheel trim industry when assessing the resistance of components to filiform corrosion. An objective is to reduce test procedure proliferation and thereby reduce costs for establishing and maintaining unique test facilities, test methods, measurement methods, laboratory accreditations, and operator training. The net effect is to reduce cost while improving the quality of the test data by adopting uniform and standardized test methods. The procedure does not establish performance standards for the components. Performance standards are to be established by the users of the test and/or their clients. The method and format for documenting proficiency is defined.