Optional · 1 of 3
Methods that open doors
Ultrasonic testing
Sound waves through metal. The most useful method to hold.
Radiographic testing
X-rays and radioactive sources. The most regulated method, usually worked at night.
Electromagnetic testing
Eddy current work, heavily used in aerospace and on heat exchanger tubes.
Magnetic particle and liquid penetrant testing
The two simplest methods. Nearly everyone starts here and stacks others on top.