GB/T 1767-1979 "Determination of weathering resistance of paint films" mainly focuses on the weathering resistance of paint films. This standard specifies the determination method of weathering resistance of paint films under natural climate and artificial climate conditions, covering test plate prepative, test conditions, test cycle and result evaluation. Provide specifications for evaluating the resistance of paint films to environmental factors erosion, and help ensure the durability and Reliability of Coating products in actual use.