GB/T 6609.2 - 2009 Focus on the determination of aluminum oxide characteristics. This part specifies the method for measuring the mass loss of aluminum oxide at 300 ° C and 1000 ° C. The standard details the sample preparation process to ensure that the sample meets the test requirements. Specify the accuracy and temperature control ability of the high temperature furnace and other equipment used in the test, and specify the operation points such as heating rate and holding time. Through this standard, the mass change data of aluminum oxide at a specific temperature can be accurately obtained. These data are of great significance for evaluating the mass of aluminum oxide, controlling the production process and its application in ceramics, refractory materials and other fields, and help enterprises optimize product mass.