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ASTM E 494 : 2015 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Measuring Ultrasonic Velocity in Materials
Available format(s)

PDF

Superseded date

21-01-2021

Language(s)

English

Published date

01-12-2015

CONTAINED IN VOL. 03.03, 2017 Defines 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.

1.1This 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.

1.2This procedure is intended for solid materials 5 mm (0.2 in.) thick or greater. The surfaces normal to the direction of energy propagation shall be parallel to at least ±3°. Surface finish for velocity measurements shall be 3.2 μm (125 μin.) root-mean-square (rms) or smoother.

Note 1:Sound wave velocities are cited in this practice using the fundamental units of metres per second, with inches per second supplied for reference in many cases. For some calculations, it is convenient to think of velocities in units of millimetres per microsecond. While these units work nicely in the calculations, the more natural units were chosen for use in the tables in this practice. The values can be simply converted from m/s to mm/μs by moving the decimal point three places to the left, that is, 3500 m/s becomes 3.5 mm/μs.

1.3Ultrasonic velocity measurements are useful for determining several important material properties. Young's modulus of elasticity, Poisson's ratio, acoustic impedance, and several other useful properties and coefficients can be calculated for solid materials with the ultrasonic velocities if the density is known (see Appendix X1).

1.4More accurate results can be obtained with more specialized ultrasonic equipment, auxiliary equipment, and specialized techniques. Some of the supplemental techniques are described in Appendix X2. (Material contained in Appendix X2 is for informational purposes only.)

Note 2:Factors including techniques, equipment, types of material, and operator variables will result in variations in absolute velocity readings, sometimes by as much as 5 %. Relative results with a single combination of the above factors can be expected to be much more accurate (probably within a 1 % tolerance).

1.5The values stated in SI units are to be regarded as standard.

1.6This 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.

Committee
E 07
DocumentType
Redline
Pages
19
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM E 1106 :2012 Standard Test Method for Primary Calibration of Acoustic Emission Sensors
ASTM E 1544 : 1999 : R2004 : EDT 1 Standard Practice for Construction of a Stepped Block and Its Use to Estimate Errors Produced by Speed-of-Sound Measurement Systems for Use on Solids (Withdrawn 2012)
ASTM E 1781/E1781M : 2013 : REDLINE PRACTICE FOR SECONDARY CALIBRATION OF ACOUSTIC EMISSION SENSORS
ASTM C 1331 : 2018 : REDLINE Standard Practice for Measuring Ultrasonic Velocity in Advanced Ceramics with Broadband Pulse-Echo Cross-Correlation Method
ASTM E 2479 : 2016 : REDLINE Standard Practice for Measuring the Ultrasonic Velocity in Polyethylene Tank Walls Using Lateral Longitudinal (L<inf>CR</inf>) Waves
ASTM C 1175 : 1999 : REV A : R2004 Standard Guide to Test Methods and Standards for Nondestructive Testing of Advanced Ceramics
ASTM E 543 : 2015 : REDLINE Standard Specification for Agencies Performing Nondestructive Testing
ASTM E 797/E797M : 2015 : REDLINE Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
ASTM E 1544 : 1999 Standard Practice for Construction of a Stepped Block and Its Use to Estimate Errors Produced by Speed-of-Sound Measurement Systems for Use on Solids
ASTM A 880 : 1995 Standard Practice for Criteria for Use in Evaluation of Testing Laboratories and Organizations for Examination and Inspection of Steel, Stainless Steel, and Related Alloys (Withdrawn 2004)
ASTM E 797 : 2005 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
MIL-P-46199 Base Document:1989 PLATE: ALUMINUM OXIDE CERAMIC (FOR USE IN ARMOR COMPOSITES)
ASTM E 1106 : 2012 : R2017 Standard Test Method for Primary Calibration of Acoustic Emission Sensors
ASTM C 1175 : 1999 : REV A : R2010 Standard Guide to Test Methods and Standards for Nondestructive Testing of Advanced Ceramics (Withdrawn 2018)
ABS 0014 : 2018 GUIDE FOR NONDESTRUCTIVE INSPECTION OF HULL WELDS
ISO 12713:1998 Non-destructive testing Acoustic emission inspection Primary calibration of transducers
ASTM C 1175 : 1999 : REV A Standard Guide to Test Methods and Standards for Nondestructive Testing of Advanced Ceramics

ASNT SNT TC 1A : 2016 TOPICAL OUTLINES FOR QUALIFICATION OF NONDESTRUCTIVE TESTING PERSONNEL
ISO 9712:2012 Non-destructive testing Qualification and certification of NDT personnel
NAS410:2003 NAS CERTIFICATION & QUALIFICATION OF NONDESTRUCTIVE TEST PERSONNEL
ASNT CP 189 : 2016 QUALIFICATION AND CERTIFICATION OF NONDESTRUCTIVE TESTING PERSONNEL
ASTM E 797 : 2005 Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
ASTM C 597 : 2016 : REDLINE Standard Test Method for Pulse Velocity Through Concrete
ASTM E 543 : 2015 : REDLINE Standard Specification for Agencies Performing Nondestructive Testing
ASTM E 317 : 2016 : REDLINE Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments

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