Standard Practice for Measuring Ultrasonic Velocity in Materials by Comparative Pulse-Echo Method
STANDARD published on 1.12.2020
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Designation standards: ASTM E494-20
Publication date standards: 1.12.2020
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: American technical standard
Category: Technical standards ASTM
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, and 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. The ultrasonic testing system that shall be used shall consist of the test instrument, search unit, couplant, and the standard reference blocks. The test procedure shall include both longitudinal and transverse wave velocity measurements, which should conform to the theoretical values of the parameters.
Keywords:
measure of ultrasonic velocity, nondestructive testing, ultrasonic properties of materials, ultrasonic thickness gauges, ultrasonic velocity,, ICS Number Code 77.040.20 (Non-destructive testing of metals)