This standard specifies the requirements and test methods, inspection rules, marking, packaging, transportation and storage, and safety of cracked naphthalene fractions. This standard applies to the by-products obtained from the steam cracking process line to produce ethylene. After being separated by the quenching oil system of the device, the naphthalene fraction extracted from the side line or the middle of the tower is mainly used as a raw material for extracting petroleum naphthalene and methylnaphthalene, and can also be used to produce petroleum. Raw material for resin.