GB/T 18426-2001 specifies the method of low temperature bending test for rubber or plastic coated fabrics. The standard specifies the equipment required for the test, including low temperature environment control devices and bending manipulators. It describes in detail how to prepare the sample, set the low temperature conditions and perform the bending operation process. By observing the surface condition of the coated fabric after bending at low temperature, such as whether there is crazing, coating flaking and other phenomena, the flexibility and coating adhesion in the low temperature environment are evaluated, which provides a key basis for product quality control and application scene selection.