GB/T 20027.1-2025 is the first part of the series of standards for the determination of Breaking strength of rubber or plastic coated fabrics. The special project specifies the measurement method of the steel ball method. The standard specifies the test principle (steel ball pressing the fabric to rupture), instrument requirements, operation steps and result calculation and representation of the method. It is suitable for the Breaking strength detection of various types of rubber or plastic coated fabrics. It can unify the detection method and ensure the accuracy of the data. It provides reliable technical support for the mass evaluation and application selection of such fabrics.