GB/T 18825-2024 "Cyclic pentane for industrial use" specifies the classification, requirements, test methods, inspection rules, marking, Encasement, transportation and storage conditions of cyclic pentane in industrial applications. This standard applies to cyclic pentane obtained by hydrodistillation of petroleum-based or coal-based carbon 5 feedstock. The molecular formula of cyclic pentane is C5H10, and the relative molecular mass is 70.13 (according to the 2022 international relative atomic mass). The standard details the physical and chemical properties of cyclopentane detection methods, including density determination, Moisture content analysis, trace sulfur determination, etc., to ensure product mass compliance, and provides appropriate Encasement and transportation requirements to ensure safety and Stability.