ASTM E 494 - 95. Standard Practice for Measuring Ultrasonic Velocity in Materials

American Society for Testing and Materials (ASTM). 1995, 13 pages.
This practice covers a test procedure for measuring ultrasonic velocities in materials with conventional ultrasonic pulse echo flaw detection equipment in which results are displayed in an A-scan display. This practice describes a method whereby unknown ultrasonic velocities in a material
sample are determined by comparative measurements using a reference material whose ultrasonic velocities are accurately known.