Non-destructive testing. Ultrasonic testing of austenitic and austentitic-ferritic stainless steels flat products of thickness equal to or greater than 6 mm (reflection method)— 20 стр.
Railway applications. Infrastructure. Non-destructive testing on rails in track. Requirements for ultrasonic inspection and evaluation principles— 44 стр.
Railway applications. Infrastructure. Non-destructive testing on rails in track. Requirements for identifying internal and surface rail defects— 34 стр.