The document emphasizes and warns the user that although it specifies the requirements, test methods, inspection rules, marking, Encasement, transportation and storage of n-butyl acrylate for industrial use, it does not cover all possible safety issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated by national regulations. The document applies to n-butyl acrylate for industrial use prepared by esterification reaction of acrylic acid and n-butanol. The document refers to several normative documents, including the parcel marking of dangerous goods, the graphic marking of Encasement storage and transportation, and the determination of Moisture content in chemical products. The molecular formula, structural formula and relative molecular mass of n-butyl acrylate are clarified in the specification. There are no terms or definitions in the document that need to be defined.