This standard specifies an accelerated aging test method for evaluating the corrosion resistance of synthetic stone in a neutral salt spray atmosphere. The principle involves repeatedly cycling salt spray spraying and drying in a salt spray test chamber under specific conditions to test and calculate performance indicators such as appearance changes, mass loss rate, and gloss retention rate of the specimens after a certain period. In addition to the core equipment—a salt spray test chamber capable of precisely controlling temperature and alternating between spraying and drying cycles—the implementation of this standard typically requires equipment for preparing and monitoring the test solution, as well as auxiliary testing instruments such as a forced-air drying oven, a balance, and a gloss meter for measuring surface gloss.