ASTM E114-95(2001)
(Practice)Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Examination by the Contact Method
Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Examination by the Contact Method
SCOPE
1.1 This practice covers ultrasonic examination of materials by the pulse-echo method using straight-beam longitudinal waves introduced by direct contact of the search unit with the material being examined.
1.2 This practice shall be applicable to development of an examination procedure agreed upon by the users of the document.
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 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.
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Designation:E114–95 (Reapproved 2001)
Standard Practice for
Ultrasonic Pulse-Echo Straight-Beam Examination by the
1
Contact Method
This standard is issued under the fixed designation E 114; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope NAS-410 NASCertification&QualificationofNondestruc-
5
2 tive Test Personnel
1.1 This practice covers ultrasonic examination of materi-
als by the pulse-echo method using straight-beam longitudinal
3. Terminology
waves introduced by direct contact of the search unit with the
3.1 Refer to Terminology E 1316 for definitions of terms
material being examined.
used in this practice.
1.2 This practice shall be applicable to development of an
examination procedure agreed upon by the users of the
4. Basis of Application
document.
4.1 Purchaser-Supplier Agreements:
1.3 The values stated in inch-pound units are to be regarded
The following items require agreement between the using
as the standard.
parties for this practice to be used effectively:
1.4 This standard does not purport to address all of the
4.1.1 Qualification of Nondestructive Testing Agencies—
safety concerns, if any, associated with its use. It is the
Agreement is required as to whether the nondestructive testing
responsibility of the user of this standard to establish appro-
agency, as defined in Practice E 543 must be formally evalu-
priate safety and health practices and determine the applica-
ated and qualified to perform the examination. If such evalu-
bility of regulatory limitations prior to use.
ation and qualification is specified, a documented procedure
2. Referenced Documents such as Practice E 543 shall be used as the basis for evaluation.
4.1.2 Personnel Qualification—Nondestructive testing
2.1 ASTM Standards:
(NDT) personnel shall be qualified in accordance with a
E 317 Practice for Evaluating Performance Characteristics
nationally recognized NDT personnel qualification practice or
of Ultrasonic Pulse-Echo Examination Systems Without
3 standardsuchasANSI/ASNT-CP-189,SNT-TC-1A,NAS-410,
the Use of Electronic Measurement Instruments
or a similar document. The practice or standard used and its
E 543 Practice for Agencies Performing Nondestructive
3 applicable revision shall be specified in the contractual agree-
Testing
3 ment between the using parties.
E 1316 Terminology for Nondestructive Examinations
4.1.3 Extent of Examination—The extent of the examina-
2.2 ASNT Standards:
tion shall be determined by agreement of the using parties.
SNT-TC-1A Recommended Practice for Personnel Qualifi-
4 4.1.4 Time of Examination—The time of examination shall
cation and Certification in Nondestructive Testing
be determined by agreement of the using parties.
ANSI/ASNT CP-189 ASNT Standard for Qualification and
4 4.1.5 Interpretation Criteria—The criteria by which the
Certification of Nondestructive Testing Personnel
ultrasonic signals and part acceptability will be evaluated and
2.3 Other Documents:
shall be determined by agreement of the using parties.
5. Significance and Use
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
structive Testing and is the direct responsibility of Subcommittee E07.06 on 5.1 A series of electrical pulses is applied to a piezoelectric
Ultrasonic Method.
element (transducer) which converts these pulses to mechani-
Current edition approved May 15, 1995. Published July 1995. Originally
cal energy in the form of pulsed waves at a nominal frequency.
published as E 114 – 55 T. Last previous edition E 114 – 90.
2
This transducer is mounted in a holder so it can transmit the
For ASME Boiler and Pressure Vessel Code applications see related Practice
SE-114 in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 03.03.
4 5
Available from American Society for Nondestructive Testing, 1711 Arlingate Available fromAerospace IndustriesAssociation ofAmerica, 1250 Eye Street,
Plaza, P.O. Box 28518, Columbus, OH 43228-0518. N.W., Suite 1200, Washington, D.C. 20005-3924 .
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E114–95 (2001)
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waves into the material through a suitable wear surface and from ⁄8 in. (3.2 mm) in diameter to 1 ⁄8 in. (28.6 mm) in
couplant. The assembly of transducer, holder, wearface, and diameter with both smaller and larger sizes available for
electrical connnector comprise the search unit. specific applications. Search units may be fitted with spec
...
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