GB/T 45763-2025 "Fine ceramics, ceramic sheets at room temperature flexural strength test method, three-point bending or four-point bending method" stipulates the determination method of the flexural strength of fine ceramic sheets at room temperature, and clarifies the principle, equipment, sample preparation, test steps and result calculation of the three-point bending and four-point bending tests. The standard is suitable for the detection of the flexural strength of fine ceramic sheets, which provides a unified basis for evaluating their mechanical properties and is of great significance for ensuring product mass and application Reliability.