GB/T 16415-2008 stipulates a method for the determination of selenium content in coal by hydride generation atomic absorption spectrometry. The determination of selenium content in coal is of great significance for comprehensive utilization of coal and environmental assessment. The standard specifies the operation process in detail and provides unified specifications for relevant personnel. Through this method, the selenium content in coal can be accurately determined, which helps coal enterprises to rationally plan the use of products. It also provides data basis for environmental protection departments to evaluate the impact of coal combustion on selenium release in the environment, and promotes green and scientific development of the coal industry.