GB/T 6730.60-2022 focuses on the determination of nickel content in iron ore. It uses flame atomic absorption spectroscopy (AAS) method, which is suitable for natural iron ore, iron concentrate, etc. The standard details the determination principle, clarifies the accuracy and wavelength range of the instrument and equipment, and standardizes the selection and preparation of reagents. Each step from collection, processing to analysis and determination of the sample is clearly specified, and the determination range is precisely set, providing a reliable method for accurately determining the nickel content in iron ore, helping to evaluate the quality of iron ore, serving the steel production and other related industries.