ASTM E3101-18
(Practice)Standard Practice for Microwave Examination of Polyethylene Butt Fusion Joints
Standard Practice for Microwave Examination of Polyethylene Butt Fusion Joints
SIGNIFICANCE AND USE
5.1 Polyethylene piping has been used instead of steel alloys in the petrochemical, power, water, gas distribution, and mining industries due to its resistance to corrosion, erosion, and reliability. Recently, polyethylene pipe has also been used for nuclear safety related cooling water applications.
SCOPE
1.1 This practice covers microwave (MW) examination of butt fusion joints made entirely of polyethylene for the purpose of joining polyethylene piping or vessel parts.
Note 1: The notes in this practice are for information only and shall not be considered part of this practice.
Note 2: This practice references HDPE and MDPE for pipe applications as defined by Specification D3350.
1.2 MW examination detects differences between the dielectric constant(s) of the materials being examined. These differences may be due to material construction (expected) or flaws such as voids, cracks, or foreign material intrusion (unexpected).
1.3 The butt fusion joining process can be subject to a variety of flaws including, but not limited to, lack of fusion, particulate contamination, inclusions, and voids.
1.4 This practice is intended for use on polyethylene butt fusion joints of pipe diameters of 4 in. to 65 in. (100 mm – 1650 mm) and wall thickness of 0.5 in. to 4 in. (12 mm – 100 mm). Greater and lesser thicknesses and smaller diameters may be tested using this standard practice if the technique can be demonstrated to provide adequate detection on mockups of the same wall thickness and geometry.
1.5 This standard practice does not address microwave examination of electrofusion joints, socket joints, or saddles.
1.6 This standard details inspection requirement only. Accept/reject criteria must be established contractually and is typically done using multiple samples with mechanical test (that is, tensile test) validation.
1.7 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.8 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E3101 − 18
Standard Practice for
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Microwave Examination of Polyethylene Butt Fusion Joints
This standard is issued under the fixed designation E3101; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This practice covers microwave (MW) examination of
1.9 This international standard was developed in accor-
buttfusionjointsmadeentirelyofpolyethyleneforthepurpose
of joining polyethylene piping or vessel parts. dance with internationally recognized principles on standard-
NOTE 1—The notes in this practice are for information only and shall
ization established in the Decision on Principles for the
not be considered part of this practice.
Development of International Standards, Guides and Recom-
NOTE 2—This practice references HDPE and MDPE for pipe applica-
mendations issued by the World Trade Organization Technical
tions as defined by Specification D3350.
Barriers to Trade (TBT) Committee.
1.2 MW examination detects differences between the di-
electric constant(s) of the materials being examined. These
2. Referenced Documents
differences may be due to material construction (expected) or
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flaws such as voids, cracks, or foreign material intrusion 2.1 ASTM Standards:
(unexpected). D3350Specification for Polyethylene Plastics Pipe and Fit-
tings Materials
1.3 The butt fusion joining process can be subject to a
E543Specification forAgencies Performing Nondestructive
variety of flaws including, but not limited to, lack of fusion,
Testing
particulate contamination, inclusions, and voids.
E1316Terminology for Nondestructive Examinations
1.4 This practice is intended for use on polyethylene butt
F2620PracticeforHeatFusionJoiningofPolyethylenePipe
fusion joints of pipe diameters of 4in. to 65in. (100mm –
and Fittings
1650mm) and wall thickness of 0.5in. to 4in. (12mm –
F2634Test Method for Laboratory Testing of Polyethylene
100mm).Greaterandlesserthicknessesandsmallerdiameters
(PE) Butt Fusion Joints using Tensile-Impact Method
may be tested using this standard practice if the technique can
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be demonstrated to provide adequate detection on mockups of
2.2 ASNT Documents:
the same wall thickness and geometry.
Recommended Practice SNT-TC-1A for Nondestructive
Testing Personnel Qualification and Certification
1.5 This standard practice does not address microwave
ANSI/ASNT CP-189Standard for Qualification and Certifi-
examination of electrofusion joints, socket joints, or saddles.
cation of Nondestructive Testing Personnel
1.6 This standard details inspection requirement only.
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Accept/reject criteria must be established contractually and is 2.3 Military Standard:
typically done using multiple samples with mechanical test MIL-STD-410Nondestructive Testing Personnel Qualifica-
(that is, tensile test) validation.
tion and Certification
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1.7 Thevaluesstatedininch-poundunitsaretoberegarded
2.4 AIA Document:
as standard. The values given in parentheses are mathematical
NAS 410Certification and Qualification of Nondestructive
conversions to SI units that are provided for information only
Testing Personnel
and are not considered standard.
1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
responsibility of the user of this standard to establish appro- 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.
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AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
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This practice is under the jurisdiction of ASTM Committee E07 on Nonde- 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
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structive Testing and is the direct responsibility of Subcommittee E07.10 on AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Specialized NDT Methods. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
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Current edition approved Nov. 1, 2018. Published December 2018. DOI: Available from Aerospace Industries Association (AIA), 1000 Wilson Blvd.,
10.1520/E3101-18. Suite 1700, Arlington, VA 22209, http://www.aia-aerospace.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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