GB/T 6150.13-2008 is an important standard for chemical analysis of tungsten concentrates. For the determination of arsenic content in tungsten concentrates, two methods are provided: hydride atomic absorption spectroscopy (AAS) method and DDTC-Ag Spectrophotometric method, spec-trophotometry method. In tungsten concentrate processing and related product production, arsenic content affects product mass and application safety. The standard details the operation procedures of the two measurement methods, providing practitioners with unified specifications for accurate measurement of arsenic content, helping enterprises control tungsten concentrate mass, ensuring downstream product performance, and promoting the healthy and orderly development of the tungsten ore industry.