ASTM E1001-99a

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 1001 – 99a
Standard Practice for
Detection and Evaluation of Discontinuities by the
Immersed Pulse-Echo Ultrasonic Method Using Longitudinal
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Waves
This standard is issued under the fixed designation E 1001; 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 E 317 Practice for Evaluating Performance Characteristics
of Ultrasonic Pulse-Echo Testing Systems Without the Use
1.1 This practice describes procedures for the ultrasonic
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of Electronic Measurement Instruments
examination of bulk materials or parts by transmitting pulsed,
E 428 Practice for Fabrication and Control of Steel Refer-
longitudinal waves through a liquid couplant into the material
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ence Blocks Used in Ultrasonic Inspection
and observing the indications of reflected waves (Fig. 1). It
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E 1316 Terminology for Nondestructive Examinations
covers only examinations in which one search unit is used as
2.2 ASNT Documents:
both transmitter and receiver (pulse-echo) and in which the part
SNT-TC-1A Recommended Practice for Personnel Qualifi-
or material being examined is totally submerged in the cou-
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cation and Certification in Nondestructive Testing
plant (immersion testing). This practice includes general re-
ANSI/ASNT-CP-189 Standard for Qualification and Certi-
quirements and procedures which may be used for detecting
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fication of Nondestructive Testing Personnel
discontinuities and for making a relative or approximate
2.3 Military Standards:
evaluation of the size of discontinuities.
MIL-STD-410E Nondestructive Testing Personnel Qualifi-
1.2 This practice complements Practice E 214 by providing
cation and Certification (Eddy-Current, Liquid Penetrant,
more detailed procedures for the selection and calibration of
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Magnetic Particle, Radiographic, and Ultrasonic)
the inspection system and for evaluation of the indications
NAS-410 Nondestructive Testing Personnel Qualification
obtained.
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and Certification
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions:
priate safety and health practices and determine the applica-
3.1.1 For definitions of terms used in this practice, see
bility of regulatory limitations prior to use.
Terminology E 1316.
2. Referenced Documents 3.2 Definitions of Terms Specific to This Standard:
3.2.1 effective beam diameter—that distance through which
2.1 ASTM Standards:
a search unit can be traversed across a calibration reflector so
C 1212 Practice for Fabricating Ceramic Reference Speci-
2 that the corresponding echo amplitude is at least one half (-6
mens Containing Seeded Voids
dB) of the maximum amplitude. The effective beam diameter is
C 1336 Practice for Fabricating Non-Oxide Ceramic Refer-
2 not a characteristic of the search unit alone, but is dependent on
ence Specimens Containing Seeded Inclusions
propagating medium, distance to the discontinuity, reflector
E 127 Practice for Fabricating and Checking Aluminum
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geometry, etc.
Alloy Ultrasonic Standard Reference Blocks
3.2.2 evaluation—the determination of the relative or ap-
E 214 Practice for Immersed Ultrasonic Examination by the
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proximate size of a discontinuity, or its indication amplitude
Reflection Method Using Pulsed Longitudinal Waves
relative to the amplitude of a reference discontinuity.
3.2.3 examination—the automatic or manual scanning of a
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part to locate discontinuities.
This practice is under the jurisdiction of ASTM Committee E-7 on Nonde-
structive Testing and is the direct responsibility of Subcommittee E07.06 on
Ultrasonic Testing Procedure.
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Current edition approved Aug. 10, 1999. Published October 1999. Originally Available from American Society for Nondestructive Testing, 1711 Arlingate
published as E 1001 – 84. Last previous edition E 1001 – 99. Plaza, P.O. Box 28518, Columbus, OH 43228-0518.
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Annual Book of ASTM Standards, Vol 15.01. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
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Annual Book of ASTM Standards, Vol 03.03. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
E 1001 – 99a
FIG. 1 Basic
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