The document emphasizes and warns users that although it specifies the product classification, requirements, test methods, inspection rules, labels, Encasement, transportation and storage of acrylic acid for industrial use, it does not exhaust all possible safety issues. It is the responsibility of the user to take appropriate safety and health measures and ensure compliance with the conditions stipulated by national regulations. The document applies to acrylic acid obtained by catalytic oxidation of propylene. The molecular formula, structural formula and relative molecular mass of acrylic acid are clarified in the text. Several normative documents are cited, including the Dangerous Goods Encasement Mark, Encasement Storage and Transportation Illustration Mark, Determination of Water Content in Chemical Products Gas chromatography, CG, Determination of Moisture content in Chemical Products Carl Fischer Method, etc. In the specification, terms and definitions are not specifically defined, and the product classification of industrial acrylic acid is clarified, which is divided into refined acrylic acid type and acrylic acid type.