GB/T 22092-2008 Focused electronic digital display micrometer and depth micrometer. It defines the type and basic size of the two types of measuring tools and determines their Measurement range. It sets strict requirements on the accuracy, Stability, and mass aspects of product manufacturing process and material. Through specific tests and inspection rules, ensure product performance up to standard. At the same time standardize product labels and Encasement details to provide unified standards for production, Quality control, sales and use, and help achieve high-precision measurement operations.