The ISO 3882 standard provides an overview of various methods for metal and Miscellaneous inorganic Coating thickness measurement. The standard provides users with detailed information on evaluating and selecting an appropriate Coating thickness measurement technique, covering many common nondestructive Measuring methods including eddy current method, X-Rays fluorescence method, laser scanning method, Microscope method, etc. The standard not only helps users understand the scope of application and advantages and disadvantages of each method, but also emphasizes Measurement accuracy, Measurement conditions and the choice of required equipment. ISO 3882 is designed to provide guidance on coating mass control, Coating thickness monitoring in R & D and production to ensure that coatings meet international standards for functionality and durability.