GB/T 32065.10-2020 "Environmental Test Methods for Oceanographic Instruments—Part 10: Salt Spray Test" was implemented on June 1, 2021, and serves as an important component of the environmental test series standards for oceanographic instruments. The standard specifies test requirements, procedures, and related information, and is applicable for evaluating the resistance of oceanographic instruments and components to salt spray corrosion, as well as the impact of salt spray on their performance and functionality. The test employs a sodium chloride salt solution of specific concentration and pH value, clearly defining the temperature, humidity, and salt spray deposition rate requirements during the spray and damp heat phases. With a standard cycle of 24 hours, different numbers of cycles can be selected based on testing needs, providing a standardized inspection basis for the reliability of oceanographic instruments in high-salt-spray marine environments.