GB/T 10125-2021 "Artificial Atmosphere Corrosion Test Salt spray test" is a standard test method for evaluating the corrosion performance of metals and other materials in a salt fog environment. The standard simulates the corrosion environment in the marine or industrial atmosphere, and is evaluated by the time the sample is exposed to salt fog or salt fog and steam environment under specific temperature and Humidity conditions in the laboratory. The standard describes in detail the requirements of the test equipment, the setting of the test conditions, the test period, the evaluation criteria, and the preparation and evaluation methods of the specimen. This information helps manufacturers, researchers and engineers evaluate the actual performance of materials in harsh environments, guide product design and material selection, and ensure reliable corrosion performance during use.