The ISO 2360 standard specifies the nonconductive Coating thickness Measuring method on nonmagnetic conductive substrates, using the amplitude-sensitive eddy current method. This method uses the eddy current principle to measure the thickness of coatings and is suitable for various nonmagnetic conductive substrates, such as aluminum, copper and their alloys. The amplitude-sensitive eddy current method can accurately measure Coating thickness nondestructive and effectively avoid the magnetic influence of substrate materials. It is one of the commonly used techniques in coating testing. The implementation of this standard helps to ensure coating mass, especially in industries such as aviation, automotive and electronics. Coating thickness accuracy is critical to product performance and durability.