GB/T 10125-2021 "Artificial Atmosphere Corrosion Test salt spray test" is a standard test method for evaluating the corrosion resistance performance of materials in salt fog environments. The standard evaluates the corrosion resistance of materials in harsh environments by subjecting samples to salt fog or salt fog plus steam under specific temperature and Humidity conditions to simulate marine or industrial atmospheric conditions. The standard specifies in detail the requirements of test equipment, the setting of test conditions, the test period, the evaluation criteria, and the preparation and evaluation methods of the samples. This information helps manufacturers and researchers understand how materials will perform in real-world applications, guiding product design and material selection to ensure reliable corrosion resistance for a wide range of industrial and marine applications.