GB/T 2 2638.11 - 2 0 2 3 "Test Methods for Aluminum Foil, Part 11: Testing of Mechanical Properties" describes in detail the test methods for mechanical properties such as tensile test, cupping test and fracture test of aluminum foil at room temperature. This standard is suitable for evaluating the tensile performance, cupping value and Breaking strength of aluminum foil to ensure that the product meets the relevant mass standards. The standard refers to several relevant documents, including GB/T 4156 on Erickson Cupping test, and GB/T 2 2638.1 on methods for measuring the thickness of aluminum foil, etc., to ensure the accuracy and repeatability of the test.