GB/T 43296 - 2023 is used to determine the room temperature bending fatigue performance of fine ceramics. This standard applies to a variety of fine ceramic materials, elaborates on the principle of bending fatigue test, clarifies the technical requirements of test equipment, and standardizes the preparation method and dimensional accuracy of the sample. Strict regulations on the loading method, stress level setting, cycle number recording and other test procedures ensure the accuracy of test data. According to this standard, the fatigue characteristics of fine ceramics under room temperature cyclic bending stress can be accurately evaluated, providing key performance data for their applications in aerospace, electronics and other fields, and assisting product design and mass control.