The ASTM D4587-23 standard deals with accelerated exposure testing of Coatings and related products in fluorescent UV-condensing units to evaluate their resistance to light, heat, and water. This method is used to simulate performance degradation of Coatings under actual use conditions, but does not cover deterioration caused by factors such as atmospheric pollution. Test results should include a detailed description of operating conditions to ensure repeatability of results between laboratories and consider factors such as temperature at which the equipment is operating, state of the lamp, etc., to accurately assess material Stability.