ASTM-E664 2005

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E664-93(2005) Standard Practice for the Measurement of the Apparent Attenuation of Longitudinal Ultrasonic Waves by Immersion Method

Published By	Publication Date	Number of Pages
ASTM	2005	3

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Categories: 17.140.01 - Acoustic measurements and noise abatement in general, ASTM

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Description

ASTM E664-93-Reapproved2005

Historical Standard: Standard Practice for the Measurement of the Apparent Attenuation of Longitudinal Ultrasonic Waves by Immersion Method

ASTM E664

Scope

1.1 This practice describes a procedure for measuring the apparent attenuation of ultrasound in materials or components with flat, parallel surfaces using conventional pulse-echo ultrasonic flaw detection equipment in which reflected indications are displayed in an A-scan presentation.

1.2 The measurement procedure is readily adaptable for the determination of relative attenuation between materials. For absolute (true) attenuation measurements, indicative of the intrinsic nature of the material, it is necessary to correct for specimen geometry, sound beam divergence, instrumentation, and procedural effects. These results can be obtained with more specialized ultrasonic equipment and techniques.

1.3 The values stated in inch-pound units are to be regarded as the standard.

1.4 This standard does not purport to address all of the safety problems, 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.

Keywords

apparent attenuation; attenuation; immersion method; nondestructive examination; ultrasonic examination

ICS Code

ICS Number Code 17.140.01 (Acoustic measurements and noise abatement in general)

DOI: 10.1520/E0664-93R05

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Practice Significance and Use
2	Apparatus Specimen Procedure FIG. 1
3	Report Precision and Bias Keywords

Additional information

Standard Title	E664-93(2005) Standard Practice for the Measurement of the Apparent Attenuation of Longitudinal Ultrasonic Waves by Immersion Method
Published Code	ASTM
Publication Date	2005
Pages Count	3
ICS Codes	17.140.01 - Acoustic measurements and noise abatement in general