This standard applies to thermosetting powder coatings with epoxy resin and polyester resin as the main film formation substances, including pigments, fillers and additives. The standard specifies the technical requirements and test methods of the coating, including film Hardness, Gloss, adhesion, impact resistance, acid alkaline resistance, salt spray (fog) resistance and humidity resistance. The test methods cover sample preparation, film thickness determination, Color and Appearance detection, etc. The standard also refers to relevant national standards to ensure that the mass and performance of the coating meet the requirements.