ASTM E2024/E2024M-11
(Test Method)Standard Practice for Atmospheric Leaks Using a Thermal Conductivity Leak Detector
Standard Practice for Atmospheric Leaks Using a Thermal Conductivity Leak Detector
SIGNIFICANCE AND USE
These test methods are useful for locating and estimating the size of pressurized gas leaks, either as quality control tests or as field inspection procedures. Also, they are valuable as pretests before other more time consuming and more sensitive leak tests are employed. These test methods are semi-quantitative techniques used to locate leaks but cannot be used to quantify except for approximation. These test methods may be used in an accept-reject test mode.
SCOPE
1.1 This practice covers procedures for detecting the sources of gas leaking at the rate of 1 × 10–5 Pa m3/s (1 × 10–4 standard cm3/s) or greater. The tests may be conducted on any object that can be pressurized with a tracer gas that is detectable by a thermal conductivity detector. The test sensitivity will vary widely depending on the tracer gas used.
1.2 Units—The values stated in either SI or std-cc/sec units are to be regarded separately as standard. The values stated in each system may not be exact equivalents: therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 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: E2024/E2024M − 11
Standard Practice for
Atmospheric Leaks Using a Thermal Conductivity Leak
1
Detector
ThisstandardisissuedunderthefixeddesignationE2024/E2024M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2.3 AIA Standard:
NAS-410Certification and Qualification of Nondestructive
1.1 This practice covers procedures for detecting the
4
–5 3 –4 Test Personnel
sources of gas leaking at the rate of 1×10 Pa m /s (1×10
3
standard cm /s) or greater. The tests may be conducted on any
3. Terminology
object that can be pressurized with a tracer gas that is
3.1 Definitions—For definitions of terms used in these test
detectable by a thermal conductivity detector. The test sensi-
methods, see Terminology E1316, Section E.
tivity will vary widely depending on the tracer gas used.
1.2 Units—The values stated in either SI or std-cc/sec units 4. Summary of Practice
are to be regarded separately as standard. The values stated in
4.1 Scanning Method—This test method sets minimum
each system may not be exact equivalents: therefore, each
requirements for a thermal conductivity leak detector. It
system shall be used independently of the other. Combining
provides for calibration of the detector and gives procedures
values from the two systems may result in non-conformance
for pressurizing the test object, locating leaks and estimating
with the standard.
the leakage rate.
1.3 This standard does not purport to address all of the
4.2 Accumulation Method—The accumulation method is
safety concerns, if any, associated with its use. It is the
sometimes the only practical method for accessing complex
responsibility of the user of this standard to establish appro-
shaped flanges or sections of pressurized vessels to be leak
priate safety and health practices and determine the applica-
tested. It may be achieved by entrapping or enclosing an area
bility of regulatory limitations prior to use.
of a test component with a suitable covering and sampling the
buildup of tracer gas concentration with the thermal conduc-
2. Referenced Documents
tivity leak detector. The acceptance criteria is based on the
2
tracer gas concentration detected by the thermal conductivity
2.1 ASTM Standards:
detector after an accumulation time from leakage from the
E543Specification forAgencies Performing Nondestructive
leak(s) into the known sample volume.
Testing
E1316Terminology for Nondestructive Examinations
5. Significance and Use
3
2.2 ASNT Documents:
5.1 These test methods are useful for locating and estimat-
SNT-TC-1ARecommended Practice for Personnel Qualifi-
ing the size of pressurized gas leaks, either as quality control
cation and Certification in Nondestructive Testing
tests or as field inspection procedures. Also, they are valuable
ANSI/ASNT CP-189Standard for Qualification and Certifi-
as pretests before other more time consuming and more
cation of Nondestructive Testing Personnel
sensitive leak tests are employed. These test methods are
semi-quantitativetechniquesusedtolocateleaksbutcannotbe
used to quantify except for approximation. These test methods
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
may be used in an accept-reject test mode.
structive Testing and is the direct responsibility of Subcommittee E07.08 on Leak
Testing Method.
6. Basis of Application
CurrenteditionapprovedJuly1,2011.PublishedJuly2011.Originallyapproved
in 1999. Last previous edition approved in 1999 as E2024-05. DOI: 10.1520/
6.1 The following items are subject to contractual agree-
E2024_E2024M-11.
ment between the parties using or referencing these test
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
methods:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box Available fromAerospace IndustriesAssociation ofAmerica, Inc. (AIA), 1000
28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org. WilsonBlvd.,Suite1700,Arlington,VA22209-3928,http://www.aia-aerospace.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2024/E2024M − 11
6.2 Personnel Qualification 7.6 Gas Compatibility—Some gases, such as hydrogen and
ammonia,maypermanentlyaltertheinstrumentsensitivityand
6.2.1 If specified in the contractual agreement. Personn
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E2024–05
Standard Test Methods for Designation:E2024/E2024M–11
Standard Practice for
Atmospheric Leaks Using a Thermal Conductivity Leak
1
Detector
ThisstandardisissuedunderthefixeddesignationE2024/E2024M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
–9 *
1.1These test methods cover procedures for detecting the sources of gas leaking at the rate of 4.5 3 10 mol/s (1 3 10
–5
3 –4
1.1 This practice covers procedures for detecting the sources of gas leaking at the rate of 1 3 10 Pa m /s (1 3 10 standard
3
cm /s) or greater.The tests may be conducted on any object that can be pressurized with a tracer gas that is detectable by a thermal
conductivity detector. The test sensitivity will vary widely depending on the tracer gas used.
1.2
1.2 Units—The values stated in either SI or std-cc/sec units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents: therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E543 Specification for Agencies Performing Nondestructive Testing
E1316 Terminology for Nondestructive Examinations
3
2.2 ASNT Documents:
SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
ANSI/ASNT CP-189 Standard for Qualification and Certification of Nondestructive Testing Personnel
2.3 AIA Standard:
4
NAS-410 Certification and Qualification of Nondestructive Test Personnel
3. Terminology
3.1 Definitions—For definitions of terms used in these test methods, see Terminology E1316, Section E.
4. Summary of Test Method Summary of Practice
4.1 Scanning Method—This test method sets minimum requirements for a thermal conductivity leak detector. It provides for
calibration of the detector and gives procedures for pressurizing the test object, locating leaks and estimating the leakage rate.
4.2 Accumulation Method—The accumulation method is sometimes the only practical method for accessing complex shaped
flanges or sections of pressurized vessels to be leak tested. It may be achieved by entrapping or enclosing an area of a test
1
These test methods are under the jurisdiction of ASTM Committee
1
This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and areis the direct responsibility of Subcommittee E07.08 on Leak Testing
Method.
Current edition approved Dec.July 1, 2005.2011. Published December 2005.July 2011. Originally approved in 1999. Last previous edition approved in 1999 as
E2024-99.E2024 - 05. DOI: 10.1520/E2024-05.10.1520/E2024_E2024M-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the American Society for Nondestructive Testing, 1711 Arlingate Plaza, P.O. Box 28518, Columbus, OH 43228–0518.
3
Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
4
Available from the Aerospace Industries Association of America, Inc., 1250 Eye Street, N.W., Washington, DC 20005.
4
Available from Aerospace Industries Association of America, Inc. (AIA), 1000 Wilson Blvd., Suite 1700, Arlington, VA 22209-3928, http://www.aia-aerospace.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E2024/E2024M–11
component with a suitable covering and sampling the buildup of tracer gas concentration with the thermal conductivity leak
detector. The acceptance criteria is based on the tracer gas concentration detected by the thermal conductivity detector after an
accumulation time from leakage from the lea
...
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