Xylene is categorized as a Class 3 dangerous substance and is recognized as a flammable liquid.
As stipulated by the “Classification and Nomenclature of Dangerous Goods” (GB6944-86) and the “Classification and Labeling of Common Hazardous Chemicals” (GB13690-92), chemical hazards are classified into eight categories. Xylene, serving as a diluent, is designated as a hazardous material and specifically identified as a Class 3 flammable liquid.