This standard specifies the terms and definitions, basic requirements, models and uses, technical requirements, test methods, inspection rules and signs, packaging, storage and transportation, and quality commitments of vinylidene chloride copolymer resin. This standard applies to resins made by suspension copolymerization of vinylidene chloride as the main raw material and other monomers (PVDC resin for short). This resin is mainly used for the processing of high-barrier product packaging materials.