GB/T 7702.1-1997 stipulates the method for measuring the moisture content of activated carbon coal particles. In the production and application fields of activated carbon, the moisture content affects its adsorption performance and other indicators. This standard clarifies the specific operation process and provides unified specifications for relevant enterprises and testing institutions. With this method, the moisture of activated carbon coal particles can be accurately measured, help control the product mass, optimize the production process, ensure that activated carbon plays an excellent role in environmental protection, chemical industry and other industries, and promote the standardization of activated carbon industry.