Standard Practice for Acousto-Ultrasonic Assessment of Filament-Wound Pressure Vessels
The AU method should be considered for vessels that are proven to be free of major flaws or discontinuities as determined by conventional techniques. The AU method may be used for detecting major flaws if other methods are deemed impractical. It is important to use methods such as immersion pulse-echo ultrasonics (Practice E1001) and acoustic emission (Practice E1067) to ascertain the presence of major flaws before proceeding with AU.
