ASTM D4325-20
(Test Method)Standard Test Methods for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
Standard Test Methods for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
SIGNIFICANCE AND USE
5.1 The physical and electrical properties, including break strength, elongation, dielectric strength, dissipation factor, permittivity, fusion, etc., will vary with temperature and moisture content. Control the temperature and moisture content of the sample for these test methods to yield consistent and reproducible results.
SCOPE
1.1 These test methods cover the methods and procedures for testing electrically insulating and semi-conducting rubber tapes designed for splicing, terminating, and sheath repair of electrical wire and cable.
1.2 The test methods appear in the following sections:
Section
Referenced Documents
2
Conditioning
5 – 6
Dielectric Strength
35 – 40
Dimensions
11 – 16
Dissipation Factor
22 – 26
Elongation
17 – 21
Heat Exposure
46 – 49
Fusion
7 – 10
Ozone Resistance
41 – 45
Permittivity
22 – 26
Sample Requirements
4
Tensile Strength
17 – 21
Volume Resistivity
27 – 34
Ultraviolet and Weather Resistance
50 – 54
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
Note 1: There is no IEC equivalent to these methods.
1.4 Unless otherwise stated, measurements are made on tapes from which the removable separator has been removed.
1.5 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. For specific warning statement see 43.1.
1.6 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
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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: D4325 − 20
Standard Test Methods for
Nonmetallic Semi-Conducting and Electrically Insulating
1
Rubber Tapes
This standard is issued under the fixed designation D4325; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 These test methods cover the methods and procedures
mendations issued by the World Trade Organization Technical
for testing electrically insulating and semi-conducting rubber
Barriers to Trade (TBT) Committee.
tapes designed for splicing, terminating, and sheath repair of
electrical wire and cable.
2. Referenced Documents
1.2 The test methods appear in the following sections:
2
2.1 ASTM Standards:
Section
D149 Test Method for Dielectric Breakdown Voltage and
Referenced Documents 2
Dielectric Strength of Solid Electrical Insulating Materials
Conditioning 5 – 6
Dielectric Strength 35–40
at Commercial Power Frequencies
Dimensions 11–16
D150 Test Methods forAC Loss Characteristics and Permit-
Dissipation Factor 22–26
tivity (Dielectric Constant) of Solid Electrical Insulation
Elongation 17–21
Heat Exposure 46–49
D257 Test Methods for DC Resistance or Conductance of
Fusion 7–10
Insulating Materials
Ozone Resistance 41–45
D374/D374M Test Methods for Thickness of Solid Electri-
Permittivity 22–26
Sample Requirements 4
cal Insulation
Tensile Strength 17–21
D412 Test Methods for Vulcanized Rubber and Thermoplas-
Volume Resistivity 27–34
tic Elastomers—Tension
Ultraviolet and Weather Resistance 50–54
D470 Test Methods for Crosslinked Insulations and Jackets
1.3 The values stated in SI units are to be regarded as
for Wire and Cable
standard. The values given in parentheses are mathematical
D750 Practice for Rubber Deterioration Using Artificial
conversions to inch-pound units that are provided for informa-
Weathering Apparatus
tion only and are not considered standard.
D4388 Specification for Nonmetallic Semi-Conducting and
NOTE 1—There is no IEC equivalent to these methods.
Electrically Insulating Rubber Tapes
D4496 Test Method for D-C Resistance or Conductance of
1.4 Unless otherwise stated, measurements are made on
tapes from which the removable separator has been removed. Moderately Conductive Materials
E591 Practice for Safety and Health Requirements Relating
1.5 This standard does not purport to address all of the
3
to Occupational Exposure to Ozone (Withdrawn 1990)
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
3.1 Definitions of Terms Specific to This Standard:
mine the applicability of regulatory limitations prior to use.
3.1.1 fusion, n—that property of rubber tape which causes
For specific warning statement see 43.1.
adjacent layers of tape to become bonded (amalgamated) or
1.6 This international standard was developed in accor-
adhered together when the tape is stretched and wound upon
dance with internationally recognized principles on standard-
itself in layers.
1 2
These test methods are under the jurisdiction of ASTM Committee D09 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Electrical and Electronic Insulating Materials and are the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D09.07 on Electrical Insulating Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Aug. 1, 2020. Published September 2020. Originally the ASTM website.
3
approved in 1997. Last previous edition approved in 2013 as D4325 – 13. DOI: The last approved version of this historical standard is referenced on
10.1520/D4325-20. www.astm.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
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D4325 − 20
SAMPLING device to rotate the rod to allow the specimen to be wound
thereon. Attach the fixture to a rigid support with the rod held
4. Sample and Specimen Requirements
in a horizontal position.
4.1 Unless otherwise required by the detailed product
8.
...
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: D4325 − 13 D4325 − 20
Standard Test Methods for
Nonmetallic Semi-Conducting and Electrically Insulating
1
Rubber Tapes
This standard is issued under the fixed designation D4325; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 These test methods cover the methods and procedures for testing electrically insulating and semi-nonmetallic conducting
semi-conducting rubber tapes designed for splicing, terminating, and sheath repair of electrical wire and cable.
1.2 The test methods appear in the following sections:
Section
Referenced Documents 2
Conditioning 5 – 6
Dielectric Strength 35 – 40
Dimensions 11 – 16
Dissipation Factor 22 – 26
Elongation 17 – 21
Heat Exposure 46 – 49
Fusion 7 – 10
Ozone Resistance 41 – 45
Permittivity 22 – 26
Sample Requirements 4
Tensile Strength 17 – 21
Volume Resistivity 27 – 34
Ultraviolet and Weather Resistance 50 – 54
Section
Referenced Documents 2
Conditioning 5-6
Dielectric Strength 35 – 40
Dimensions 11 – 16
Dissipation Factor 22 – 26
Elongation 17 – 21
Heat Exposure 46 – 49
Fusion 7 – 10
Ozone Resistance 41 – 45
Permittivity 22 – 26
Sample Requirements 4
Tensile Strength 17 – 21
Volume Resistivity 27 – 34
Ultraviolet and Weather Resistance 50 – 54
1
These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee
D09.07 on Flexible and Rigid Electrical Insulating Materials.
Current edition approved Nov. 1, 2013Aug. 1, 2020. Published December 2013September 2020. Originally approved in 1997. Last previous edition approved in 20082013
as D4325 – 08.D4325 – 13. DOI: 10.1520/D4325-13.10.1520/D4325-20.
*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 ----------------------
D4325 − 20
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to
inch-pound units that are provided for information only and are not considered standard.
NOTE 1—There is no IEC equivalent to these methods.
1.4 Unless otherwise stated, measurements are made on tapes from which the removable separator has been removed.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. For specific precaution statementswarning statement see 43.1.
1.6 This is a fire-test response standard.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at
Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D374D374/D374M Test Methods for Thickness of Solid Electrical Insulation (Metric) D0374_D0374M
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D470 Test Methods for Crosslinked Insulations and Jackets for Wire and Cable
D750 Practice for Rubber Deterioration Using Artificial Weathering Apparatus
D4388 Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
D4496 Test Method for D-C Resistance or Conductance of Moderately Conductive Materials
3
E591 Practice for Safety and Health Requirements Relating to Occupational Exposure to Ozone (Withdrawn 1990)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 fusion, n—that property of rubber tape which causes adjacent layers of tape to become
...
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