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Description / Abstract:
This guide describes a procedure for detecting defects in
metallic and non-metallic parts using the resonant ultrasound
spectroscopy method. The procedure is intended for use with
instruments capable of exciting and recording whole body resonant
states within parts which exhibit acoustical or ultrasonic ringing.
It is used to distinguish acceptable parts from those containing
defects, such as cracks, voids, chips, density defects, tempering
changes, and dimensional variations that are closely correlated
with the parts' mechanical system dynamic response.
The values stated in SI units are to be regarded as standard. No
other units of measurement are included in this standard.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
*A Summary of Changes section appears at the end of this
standard