GB/T 20027.2 - 2017 is a standard for the determination of the Breaking strength of rubber or plastic-coated fabrics, focusing on the second part of the hydraulic method. The standard specifies the specific process for measuring the Breaking strength of such fabrics by hydraulic means, covering equipment parameters, sample prepative, operation details and result processing. Through standardized hydraulic testing, the fracture resistance of fabrics can be accurately quantified, providing a scientific basis for product mass control and performance evaluation. It is widely used in related fabric production, Quality control and other fields to ensure product quality and application safety.