The GB/T 9757-1988 standard was proposed by the General Administration of mass Supervision, Inspection & Quarantine of the People's Republic of China, which defines the product classification, technical requirements, test methods, inspection rules, signs, Encasement, storage and transportation requirements of solvent-type exterior coatings. The Coating is mainly used for decoration and protection of the outer surface of buildings and structures to ensure that the mass and performance of the Coating meet the actual application requirements.