The GB/T 684-2023 standard specifies the technical requirements and test methods for the chemical reagents of toluene. As an important organic solvent, toluene is widely used in the fields of chemical industry, medicine and laboratories. The standard mainly includes the requirements and test methods for the physical and chemical properties of toluene, purity inspection, impurity content, moisture, acid alkalinity and organic impurities. Through the quality control of toluene carried out in accordance with this standard, its safety, Stability and Reliability in various industrial and laboratory applications can be ensured, while promoting its compliance and mutual recognition in domestic and foreign trade.