This standard specifies an accelerated electrochemical test method for evaluating the corrosion resistance of steel reinforcement embedded in concrete under simulated marine chloride environments, primarily applicable to concrete structures. The core of this method involves using a specialized steel corrosion measurement system, where mortar or concrete specimens with embedded reinforcement are placed in a solution simulating marine conditions. Accelerated corrosion is induced by applying a constant current or constant potential, while electrochemical techniques such as linear polarization or electrochemical impedance spectroscopy are employed to measure the corrosion current density or polarization resistance of the reinforcement. This allows for a quantitative assessment of its corrosion resistance. Equipment such as potentiostats and data loggers are typically used during the test process.