GB/T 45473-2025 "Determination of composite and reinforced fibers, carbon fiber reinforced plastics (CFRPs) and metal components, cross tensile strength" is a national standard to be implemented on October 1, 2025, and is suitable for evaluating the interface bonding performance of CFRPs and metal components. The standard specifies the test principle of cross tensile strength, sample preparation, test conditions, equipment requirements and data calculation methods, focusing on sample geometry, loading rate, environment temperature Humidity control and other parameters to ensure the conformity and comparability of test results. Compared with traditional methods, new requirements such as digital image correlation (DIC) technology assisted deformation monitoring and high-precision Sensors dynamic data collection are added, and the interface failure mode determination criteria are optimized to improve Test accuracy.