GB/T 1965-2023 Specifies the room temperature flexural strength test of porous ceramics. It is suitable for all kinds of porous ceramics, detailing the test principle, specifying the required equipment, such as loading device, support device, etc. It puts forward requirements for the preparation, dimensional accuracy, surface state, etc., and strictly standardizes the test process, including loading rate, data recording, etc. According to this standard, the flexural strength of porous ceramics at room temperature can be accurately determined, providing a key basis for mass detection and performance evaluation, helping its rational application in the fields of filtrating, heat insulation, etc., and ensuring the mass and Reliability of related products.