MIL-STD-202/220, DEPARTMENT OF DEFENSE TEST METHOD STANDARD: METHOD 220, ULTRASONIC INSPECTION (11-SEP-2017)

MIL-STD-202/220, DEPARTMENT OF DEFENSE TEST METHOD STANDARD: METHOD 220, ULTRASONIC INSPECTION (11-SEP-2017)., Ultrasonic imaging is a nondestructive method for detecting internal physical defects in components which are not otherwise visible. Ultrasonic imaging techniques are intended to reveal such flaws as delamination, voids and crack