GB/T 6150.2-2008 is a standard for chemical analysis of tungsten concentrates. It specifies the potassium iodate volumetric method and the hydride atomic absorption spectroscopy (AAS) method for the determination of tin content. In the production and application of tungsten concentrates, tin content affects product performance. The standard details the operation procedures of the two determination methods and provides practitioners with uniform specifications. With the help of these methods, the tin content can be accurately determined, helping enterprises to effectively control the mass of tungsten concentrates, ensure that products meet relevant requirements, promote the stable and orderly development of the tungsten ore industry, and ensure the mass of downstream products.