Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use

SIGNIFICANCE AND USE
4.1 These test methods include most of the important tests used to characterize heat-shrinkable tubing. They are intended primarily for, but not limited to, extruded heat-shrinkable tubing.  
4.2 It is acceptable to use variations in these test methods or alternate contemporary methods of measurement to determine the values for the properties in this standard provided such methods ensure quality levels and measurement accuracy equal to or better than those prescribed herein. It is the responsibility of the organizations using alternate test methods to be able to demonstrate this condition. In cases of dispute, the methods specified herein shall be used.Note 2—Provision for alternate methods is necessary because of (1) the desire to simplify procedures for specific applications without altering the result, and (2) the desire to eliminate redundant testing and use data generated during manufacturing process control, including that generated under Statistical Process Control (SPC) conditions, using equipment and methods other than those specified herein. An example would be the use of laser micrometers or optical comparators to measure dimensions.
SCOPE
1.1 These test methods cover the testing of heat-shrinkable tubing used for electrical insulation. Materials used include poly(vinyl chloride), polyolefins, fluorocarbon polymers, silicone rubber, and other plastic or elastomeric compounds.  
1.2 The procedures appear in the following sections:    
Procedure  
Sections  
ASTM Method
Reference  
Adhesive Peel Strength  
98 – 104  
Brittleness Temperature  
40  
D746  
Color  
55 and 56  
D1535  
Color Stability  
57 – 62  
D1535  
Conditioning  
7  
D618  
Copper Stability  
93  
Corrosion Testing  
89 – 95  
Dielectric Breakdown  
20 – 25  
D149  
Dimensions  
8 – 13  
D876  
Flammability  
68 – 72  
D876  
Fluid Resistance  
63 – 67  
Fungus Resistance  
104 – 108  
Heat Resistance  
49 – 54  
Heat Shock  
26 – 30  
Low-Temperature Properties  
36 – 43  
Restricted Shrinkage  
14 – 19  
Selection of Test Specimens  
6  
Secant Modulus  
81 – 84  
D882  
Storage Life  
31 – 35  
Specific Gravity  
73 and 74  
D792  
Stress Modulus  
85 – 88  
D412  
Tensile Strength and Ultimate Elongation  
44 – 48  
D412  
Thermal Endurance  
96 and 97  
Volume Resistivity  
75 – 78  
D257  
Water Absorption  
79 and 80  
D570  
Melting Point  
104 – 108  
D3418
1.3 This is a fire-test-response standard.  
1.4 The values stated in inch-pound units are to be regarded as standard, except for temperature, which shall be expressed in degrees Celsius. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Sections 5 and 68.2.Note 1—These test methods are similar, but not identical to, those in IEC 60684–2 (see also Note 9).

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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: D2671 − 13
Standard Test Methods for
1
Heat-Shrinkable Tubing for Electrical Use
This standard is issued under the fixed designation D2671; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 These test methods cover the testing of heat-shrinkable
bility of regulatory limitations prior to use. For specific hazard
tubing used for electrical insulation. Materials used include
statements, see Sections 5 and 68.2.
poly(vinyl chloride), polyolefins, fluorocarbon polymers, sili-
cone rubber, and other plastic or elastomeric compounds.
NOTE 1—These test methods are similar, but not identical to, those in
IEC 60684–2 (see also Note 9).
1.2 The procedures appear in the following sections:
ASTM Method
2. Referenced Documents
Procedure Sections Reference
Adhesive Peel Strength 98 – 104
2
Brittleness Temperature 40 D746 2.1 ASTM Standards:
Color 55 and 56 D1535
D149Test Method for Dielectric Breakdown Voltage and
Color Stability 57 – 62 D1535
DielectricStrengthofSolidElectricalInsulatingMaterials
Conditioning 7 D618
Copper Stability 93 at Commercial Power Frequencies
Corrosion Testing 89–95
D257Test Methods for DC Resistance or Conductance of
Dielectric Breakdown 20 – 25 D149
Insulating Materials
Dimensions 8 – 13 D876
Flammability 68 – 72 D876
D412TestMethodsforVulcanizedRubberandThermoplas-
Fluid Resistance 63–67
tic Elastomers—Tension
Fungus Resistance 104 – 108
D570Test Method for Water Absorption of Plastics
Heat Resistance 49–54
Heat Shock 26–30
D618Practice for Conditioning Plastics for Testing
Low-Temperature Properties 36–43
D746Test Method for Brittleness Temperature of Plastics
Restricted Shrinkage 14–19
and Elastomers by Impact
Selection of Test Specimens 6
Secant Modulus 81 – 84 D882
D792Test Methods for Density and Specific Gravity (Rela-
Storage Life 31–35
tive Density) of Plastics by Displacement
Specific Gravity 73 and 74 D792
Stress Modulus 85 – 88 D412 D876Test Methods for Nonrigid Vinyl Chloride Polymer
Tensile Strength and Ultimate Elongation 44 – 48 D412
Tubing Used for Electrical Insulation
Thermal Endurance 96 and 97
D882Test Method for Tensile Properties of Thin Plastic
Volume Resistivity 75 – 78 D257
Water Absorption 79 and 80 D570
Sheeting
Melting Point 104 – 108 D3418
D1535Practice for Specifying Color by the Munsell System
1.3 This is a fire-test-response standard.
D1711Terminology Relating to Electrical Insulation
D3418Test Method for Transition Temperatures and En-
1.4 The values stated in inch-pound units are to be regarded
thalpies of Fusion and Crystallization of Polymers by
as standard, except for temperature, which shall be expressed
Differential Scanning Calorimetry
in degrees Celsius. The values given in parentheses are
E176Terminology of Fire Standards
mathematical conversions to SI units that are provided for
information only and are not considered standard.
2.2 Other Documents:
3
MIL-STD 104Limits for Electrical Insulation Color
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
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 Nov. 1, 2013. Published December 2013. Originally the ASTM website.
3
approved in 1967. Last previous edition approved in 2009 as D2671–09. DOI: AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
10.1520/D2671-13. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
*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 ----------------------
D2671 − 13
NOTE2—Provisionforalternatemethodsisnecessarybecauseof(1)the
IEC Publication 216 Guide for the Determination of Ther-
desire to simplify procedures for specific applications without altering the
mal Endurance Properties of Electrical Insulating Materi-
result, and (2) the desire to eliminate redundant testing and use data
4
...

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: D2671 − 09 D2671 − 13 An American National Standard
Standard Test Methods for
1
Heat-Shrinkable Tubing for Electrical Use
This standard is issued under the fixed designation D2671; 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 testing of heat-shrinkable tubing used for electrical insulation. Materials used include
poly(vinyl chloride), polyolefins, fluorocarbon polymers, silicone rubber, and other plastic or elastomeric compounds.
1.2 The procedures appear in the following sections:
ASTM Method
Procedure Sections Reference
Adhesive Peel Strength 98 – 104
Brittleness Temperature 40 D746
Color 55 and 56 D1535
Color Stability 57 – 62 D1535
Conditioning 7 D618
Copper Stability 93
Corrosion Testing 89 – 95
Dielectric Breakdown 20 – 25 D149
Dimensions 8 – 13 D876
Flammability 68 – 72 D876
Fluid Resistance 63 – 67
Fungus Resistance 104 – 108
Heat Resistance 49 – 54
Heat Shock 26 – 30
Low-Temperature Properties 36 – 43
Restricted Shrinkage 14 – 19
Selection of Test Specimens 6
Secant Modulus 81 – 84 D882
Storage Life 31 – 35
Specific Gravity 73 and 74 D792
Stress Modulus 85 – 88 D412
Tensile Strength and Ultimate Elongation 44 – 48 D412
Thermal Endurance 96 and 97
Volume Resistivity 75 – 78 D257
Water Absorption 79 and 80 D570
Melting Point 104 – 108 D3418
1.3 This is a fire-test-response standard.
1.4 The values stated in inch-pound units are to be regarded as standard, except for temperature, which shall be expressed in
degrees Celsius. The values given in parentheses are mathematical conversions to SI units that are provided for information only
and are not considered standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use. For specific hazard statements, see Sections 5 and 68.2.
NOTE 1—These test methods are similar, but not identical to, those in IEC 60684–2 (see also Note 9).
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 Insulating Materials.
Current edition approved Oct. 1, 2009Nov. 1, 2013. Published November 2009December 2013. Originally approved in 1967. Last previous edition approved in 20072009
ε1
as D2671 – 00D2671 – 09.(2007) . DOI: 10.1520/D2671-09.10.1520/D2671-13.
*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 ----------------------
D2671 − 13
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
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D570 Test Method for Water Absorption of Plastics
D618 Practice for Conditioning Plastics for Testing
D746 Test Method for Brittleness Temperature of Plastics and Elastomers by Impact
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D876 Test Methods for Nonrigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation
D882 Test Method for Tensile Properties of Thin Plastic Sheeting
D1535 Practice for Specifying Color by the Munsell System
D1711 Terminology Relating to Electrical Insulation
D3418 Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential
Scanning Calorimetry
E176 Terminology of Fire Standards
2.2 Other Documents:
3
MIL-STD 104 Limits for Electrical Insulation Color
4
IEC Publication 216 Guide for the Determination of Thermal Endurance Properties of Electrical Insulating Materials
4
IEC Publication 60684 Specification for Flexible Insulating Sleeving
4
ISO 846 Plastics—Evaluation of the Action of Microorganisms
3. Terminology
3.1
...

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