This standard establishes comprehensive technical specifications for lithium-ion battery cathode materials, systematically defining the terminology classification, physicochemical properties, and electrochemical testing methods for carbon composite lithium iron phosphate. The standard focuses on controlling the material's tap density, carbon content, and impurity content to ensure high safety in applications such as power batteries and energy storage. During the testing phase, Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) is typically used to accurately determine the content of elements such as lithium and iron, as well as trace metal impurities. A laser particle size analyzer is employed to monitor particle size distribution, while the Brunauer-Emmett-Teller (BET) method is utilized with a surface area and porosity analyzer to assess powder activity. Additionally, for the material's conductive performance, the standard specifies the method of measuring conductivity under pressure using a four-point probe resistivity tester.