GB/T 46049-2025 is a special project standard for the physical and Mechanical Properties of rubber or plastic coated fabrics, specifying the method of bending force measurement. The standard specifies the test principle, required instruments, operation steps and result calculation and representation. It is suitable for the bending force detection of various rubber or plastic coated fabrics. It can unify the detection method and ensure the accuracy of the data. It provides a reliable technical basis for the mass evaluation and application selection of such fabrics in scenarios where bending performance needs to be considered (such as tents, tarps, etc.).