This part of GB/T 4074 specifies the following test methods: - Test method 6: Elongation; - Test method 7: Resilience; - Test method 8: Flexibility and adhesion; - Test method 11: Scratch resistance; Test Method 18: Thermal Bonding. See GB/T 4074.1 for definitions, general principles of test methods and a list of test methods for winding wires.