The GB/T 2404-2023 standard specifies requirements, safety information, sampling, test methods, inspection rules, as well as marking, labeling, Encasement, transportation and storage requirements for chlorobenzene. This standard applies to the quality control of chlorobenzene products to ensure that they meet safety and mass requirements during production, storage and transportation. The chemical structural formula of chlorobenzene is C6H5Cl, and the relative molecular mass is 112.56. The standard refers to a series of relevant documents, including the dangerous goods Encasement mark, Encasement storage and transportation diagram mark, dyestuff moisture determination method, etc., to ensure that the product meets the specification requirements.