ASTM E127-04

Standard Practice for Fabricating and Checking Aluminum Alloy Ultrasonic Standard Reference Blocks

SCOPE
1.1 This practice covers a procedure for fabricating aluminum alloy ultrasonic standard reference blocks that can be used for checking performance of ultrasonic testing equipment and for standardization and control of ultrasonic tests of aluminum alloy products using pulsed longitudinal waves introduced into test material either by the direct-contact method or by the immersion method. A recommended procedure for checking blocks is described and calibration data for a number of reference blocks are tabulated. Statements concerning procedures are provided without a discussion of the technical background for the preference. The necessary technical background can be found in Refs. (1-15).Note 1Practice E 428 and Guide E 1158 also describe procedures for selecting material, fabricating blocks, and checking response. Unlike this practice, there is no requirement for evaluation relative to a specified standard target.
1.2 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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2004
• ICS: 77.040.01 - Testing of metals in general
• ICS: 77.120.10 - Aluminium and aluminium alloys
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.06 - Ultrasonic Method

Relations

• Replaces: ASTM E127-98 - Standard Practice for Fabricating and Checking Aluminum Alloy Ultrasonic Standard Reference Blocks
• Effective Date: 01-Jul-2004
• Replaced By: ASTM E127-05 - Standard Practice for Fabricating and Checking Aluminum Alloy Ultrasonic Standard Reference Blocks
• Effective Date: 01-Apr-2005
• Referred By: ASTM E1774-17(2022) - Standard Guide for Electromagnetic Acoustic Transducers (EMATs)
• Effective Date: 01-Jul-2004
• Referred By: ASTM B999-15(2022) - Standard Specification for Titanium and Titanium Alloys Plating, Electrodeposited Coatings of Titanium and Titanium Alloys on Conductive and Non-Conductive Substrate
• Effective Date: 01-Jul-2004
• Referred By: ASTM B594-19e1 - Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products
• Effective Date: 01-Jul-2004
• Referred By: ASTM E2375-22 - Standard Practice for Ultrasonic Testing of Wrought Products
• Effective Date: 01-Jul-2004
• Referred By: ASTM E1901-23 - Standard Guide for Detection and Evaluation of Discontinuities by Contact Pulse-Echo Straight-Beam Ultrasonic Methods
• Effective Date: 01-Jul-2004
• Referred By: ASTM A531/A531M-18(2023) - Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
• Effective Date: 01-Jul-2004
• Referred By: ASTM E317-21 - Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments
• Effective Date: 01-Jul-2004
• Referred By: ASTM E3370-23 - Standard Practice for Matrix Array Ultrasonic Testing of Composites, Sandwich Core Constructions, and Metals
• Effective Date: 01-Jul-2004
• Referred By: ASTM A1-00(2018) - Standard Specification for Carbon Steel Tee Rails
• Effective Date: 01-Jul-2004
• Referred By: ASTM E543-21 - Standard Specification for Agencies Performing Nondestructive Testing
• Effective Date: 01-Jul-2004
• Referred By: ASTM E1001-21 - Standard Practice for Detection and Evaluation of Discontinuities by the Immersed Pulse-Echo Ultrasonic Method Using Longitudinal Waves
• Effective Date: 01-Jul-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 127 – 04
Standard Practice for
Fabricating and Checking Aluminum Alloy Ultrasonic
1
Standard Reference Blocks
This standard is issued under the fixed designation E127; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This specification has been approved for use by agencies of the Department of Defense.
1. Scope E428 Practice for Fabrication and Control of Steel Refer-
ence Blocks Used in Ultrasonic Inspection
1.1 This practice covers a procedure for fabricating alumi-
E1158 Guide for Material Selection and Fabrication of
numalloyultrasonicstandardreferenceblocksthatcanbeused
Reference Blocks for the Pulsed LongitudinalWave Ultra-
for checking performance of ultrasonic testing equipment and
sonic Examination of Metal and Metal Alloy Production
for standardization and control of ultrasonic tests of aluminum
Material
alloy products using pulsed longitudinal waves introduced into
E1316 Terminology for Nondestructive Examinations
test material either by the direct-contact method or by the
E1324 Guide for Measuring Some Electronic Characteris-
immersion method. A recommended procedure for checking
3
tics of Ultrasonic Examination Instruments
blocks is described and calibration data for a number of
reference blocks are tabulated. Statements concerning proce-
3. Terminology
dures are provided without a discussion of the technical
3.1 Definitions—For definitions of terms not specific to this
background for the preference. The necessary technical back-
2 practice, refer to Terminology E1316.
ground can be found in Refs. (1-15).
3.2 Definitions of Terms Specific to This Standard:
NOTE 1—PracticeE428andGuideE1158alsodescribeproceduresfor
3.2.1 angular error—the condition observed in ultrasonic
selecting material, fabricating blocks, and checking response. Unlike this
tests of reference blocks when the response from the hole
practice, there is no requirement for evaluation relative to a specified
bottom is not maximum while the search unit is positioned to
standard target.
obtain either a maximum number of back reflections from a
1.2 This standard does not purport to address all of the
reference block or a maximum indication from its entry
safety concerns, if any, associated with its use. It is the
surface. Angular error results when the entry surface, hole
responsibility of the user of this standard to establish appro-
bottom, and back surface are not parallel to each other.
priate safety and health practices and determine the applica-
3.2.2 area-amplitude response curve—a curve showing the
bility of regulatory limitations prior to use.
relationshipbetweendifferentareasofreflectingtargetslocated
ataconstantdistanceinanultrasonictransmittingmediumand
2. Referenced Documents
their respective amplitudes of ultrasonic response.
3
2.1 ASTM Standards:
3.2.3 back reflection—the indication, observed on the dis-
E317 Practice for Evaluating Performance Characteristics
play screen of a test instrument, that represents the ultrasonic
ofUltrasonicPulse-EchoTestingSystemsWithouttheUse
energy reflected from the back surface of a reference block.
of Electronic Measurement Instruments
3.2.4 back surface—the end of a reference block that is
opposite the entry surface.
1 3.2.5 entry surface—the end of a reference block through
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
which ultrasonic energy must pass when reflections from the
structive Testing and is the direct responsibility of Subcommittee E07.06 on
Ultrasonic Method.
hole bottom are obtained.
CurrenteditionapprovedJuly1,2004.PublishedJuly2004.Originallyapproved
3.2.6 hole bottom—the flat reflecting surface in a reference
in 1958. Last previous edition approved in 1998 as E127-98.
2
blockthatisobtainedbymakingtheentireendofadrilledhole
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof
this practice. smooth and flat using best machining practices. The hole
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
bottom is parallel to the entry surface of the block.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.2.7 hole size—the diameter of the hole in a reference
Standards volume information, refer to the standard’s Document Summary page on
block that determines the area of the hole bottom.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E127–04
3.2.8 metal distance—thedistanceinareferenceblockfrom standardize ultrasonic tests at any frequen
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