ASTM E 214 - 68. Standard Practice for Immersed Ultrasonic Examination by the Reflection Method Using Pulsed Longitudinal Waves

American Society for Testing and Materials (ASTM). Reapproved 1996. 3 pages.
This practice describes in general terms an ultrasonic test procedure for detecting discontinuities in material using testing instruments which have been designed to transmit and receive pulsed longitudinal ultrasonic waves introduced into the material to be inspected through a liquid coupling agent.