GB/T 23141-2008 "Photochemistry, Optical Aging Long Arc xenon arc" stipulates the model, main size, technical requirements, test methods, inspection rules and signs, Encasement, transportation and storage conditions of long arc xenon arc. The xenon arc in this standard is widely used in photochemistry and photoaging testing fields because its optical radiation energy distribution is very similar to natural sunlight, and is often used as a daylight analog Light source. The standard refers to a number of domestic and foreign normative documents to ensure that the product meets mass requirements and provides reliable technical support for related industries.