This standard specifies in detail the terms and definitions of accelerated weathering of exterior insulation systems, the principles of methods, test equipment, specimen preparation, test procedures, inspection tests and test reports. Its scope of application includes accelerated weathering of exterior insulation systems. A series of necessary standard documents are cited, such as rolling bearing steel balls, construction engineering veneer brick bond strength inspection standards, etc. In terms and definitions, exterior exterior insulation system weathering resistance is defined as the ability of the specimen to resist various natural environments under simulated outdoor climate conditions, while the specimen refers to the test base wall, fixed materials, insulation materials, protective materials composed of components.