GB/T 6730.49-1986 specifies the method for the determination of sodium and potassium content in iron ore by Atomic absirption spectroscopy-tometry, AAS. It is based on the absorption principle of sodium and potassium elements for specific wavelengths of light. Detailed description of the required instruments and equipment, such as the key parameters of the atomic absorption spectrophotometer. Specifications are given for the collection and preparation of iron ore samples, including the steps of crushing and dissolving. Standardize the test process, covering instrument preheating, calibrating, and the selection and data processing of the measured wavelength. Through this standard, the amount of sodium and potassium in iron ore can be accurately determined, providing important data support for iron ore mass assessment and related industrial production.