The GB/T 9286-2021 standard aims to assess the peeling performance of Paints and varnish coatings. The adhesion ability and Stability are determined by cutting the coating to form a mesh pattern and checking the coating peeling in the cutting area. This standard specifies in detail the scope of the test, methods, instruments, sampling, steps, evaluation of results and reporting requirements to ensure consistent and comparable test results in various situations. The test requires specific cutting tools, which can be manual or electric, and the choice of cutting tools and the method of use will directly affect the comparability of test results. The standard refers to several ISO standards covering coating inspection, preparation, film thickness determination, terms and definitions, etc., to ensure scientific and standardized testing. By following the guidance of this standard, the anti-peeling performance of coatings in use can be accurately evaluated, providing an important basis for product quality control and application.