This standard specifies the technical requirements, test methods, inspection rules, packaging and marking, storage and transportation of ultraviolet sunlight patterning computer direct plate making plates (this plate is also called UV-CTP plate). This standard is applicable to computer-to-plate-making plates whose surface has been roughened and anodized with an aluminum plate base as the support; it is applicable to plates for computer-to-plate making machines using ultraviolet light sources with a wavelength of 320 nm to 450 nm.