ASTM D2671-21

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 These test methods appear in the following sections:    
Procedure  
Section(s)  
Test
Method(s)  
Adhesive Peel Strength  
94 – 100  
Brittleness Temperature  
40  
D746  
Color  
55 and 56  
D1535  
Color Stability  
57 – 62  
D1535  
Conditioning  
7  
D618  
Copper Stability  
89  
Corrosion Testing  
85 – 91  
Dielectric Breakdown  
20 – 25  
D149  
Dimensions  
8 – 13  
D876  
Flammability  
68  
D8355
(Methods A, C, or D)  
Fluid Resistance  
63 – 67  
Fungus Resistance  
100 – 104  
Heat Resistance  
49 – 54  
Heat Shock  
26 – 30  
Low-temperature Properties  
36 – 43  
Restricted Shrinkage  
14 – 19  
Selection of Test Specimens  
6  
Secant Modulus  
77 – 80  
D882  
Storage Life  
31 – 35  
Specific Gravity  
69 and 70  
D792  
Stress Modulus  
81 – 84  
D412  
Tensile Strength and Ultimate Elongation  
44 – 48  
D412  
Thermal Endurance  
92 and 93  
Volume Resistivity  
71 – 74  
D257  
Water Absorption  
75 and 76  
D570  
Melting Point  
100 – 104  
D3418  
1.3 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.  
1.4 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 hazard statements, see Section 5 and for fire test safety caveats see Test Methods D8355.
Note 1: These test methods are similar, but not identical to, those in IEC 60684-2 (see also Note 9).  
1.5 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

• Status: Published
• Publication Date: 31-Dec-2020
• ICS: 29.120.99 - Other electrical accessories
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

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: D2671 − 21
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* responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 These test methods cover the testing of heat-shrinkable
mine the applicability of regulatory limitations prior to use.
tubing used for electrical insulation. Materials used include
For specific hazard statements, see Section 5 and for fire test
poly(vinyl chloride), polyolefins, fluorocarbon polymers, sili-
safety caveats see Test Methods D8355.
cone rubber, and other plastic or elastomeric compounds.
NOTE 1—These test methods are similar, but not identical to, those in
1.2 These test methods appear in the following sections:
IEC 60684-2 (see also Note 9).
Test
Procedure Section(s)
1.5 This international standard was developed in accor-
Method(s)
Adhesive Peel Strength 94 – 100
dance with internationally recognized principles on standard-
Brittleness Temperature 40 D746
ization established in the Decision on Principles for the
Color 55 and 56 D1535
Development of International Standards, Guides and Recom-
Color Stability 57 – 62 D1535
Conditioning 7 D618
mendations issued by the World Trade Organization Technical
Copper Stability 89
Barriers to Trade (TBT) Committee.
Corrosion Testing 85–91
Dielectric Breakdown 20 – 25 D149
Dimensions 8 – 13 D876
2. Referenced Documents
Flammability 68 D8355
2
(Methods A, C, 2.1 ASTM Standards:
or D)
D149 Test Method for Dielectric Breakdown Voltage and
Fluid Resistance 63–67
DielectricStrengthofSolidElectricalInsulatingMaterials
Fungus Resistance 100 – 104
at Commercial Power Frequencies
Heat Resistance 49–54
Heat Shock 26–30
D257 Test Methods for DC Resistance or Conductance of
Low-temperature Properties 36–43
Insulating Materials
Restricted Shrinkage 14–19
Selection of Test Specimens 6 D412 Test Methods forVulcanized Rubber andThermoplas-
Secant Modulus 77 – 80 D882
tic Elastomers—Tension
Storage Life 31–35
D570 Test Method for Water Absorption of Plastics
Specific Gravity 69 and 70 D792
Stress Modulus 81 – 84 D412 D618 Practice for Conditioning Plastics for Testing
Tensile Strength and Ultimate Elongation 44 – 48 D412
D746 Test Method for Brittleness Temperature of Plastics
Thermal Endurance 92 and 93
and Elastomers by Impact
Volume Resistivity 71 – 74 D257
Water Absorption 75 and 76 D570
D792 Test Methods for Density and Specific Gravity (Rela-
Melting Point 100 – 104 D3418
tive Density) of Plastics by Displacement
1.3 The values stated in inch-pound units are to be regarded
D876 Test Methods for Nonrigid Vinyl Chloride Polymer
as standard, except for temperature, which shall be expressed
Tubing Used for Electrical Insulation
in degrees Celsius. The values given in parentheses are
D882 Test Method for Tensile Properties of Thin Plastic
mathematical conversions to SI units that are provided for
Sheeting
information only and are not considered standard.
D1535 Practice for Specifying Color by the Munsell System
D1711 Terminology Relating to Electrical Insulation
1.4 This standard does not purport to address all of the
D3418 Test Method for Transition Temperatures and En-
safety concerns, if any, associated with its use. It is the
thalpies of Fusion and Crystallization of Polymers by
1
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
2
Subcommittee D09.07 on Electrical Insulating Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2021. Published February 2021. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1967. Last previous edition approved in 2013 as D2671 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D2671-21. the ASTM website.
*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 − 21
Differential Scanning Calorimetry 4. Significance
...

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 − 13 D2671 − 21
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 These test methods appear in the following sections:
Test
Procedure Section(s)
Method(s)
Adhesive Peel Strength 94 – 100
Brittleness Temperature 40 D746
Color 55 and 56 D1535
Color Stability 57 – 62 D1535
Conditioning 7 D618
Copper Stability 89
Corrosion Testing 85 – 91
Dielectric Breakdown 20 – 25 D149
Dimensions 8 – 13 D876
Flammability 68 D8355
(Methods A, C, or D)
Fluid Resistance 63 – 67
Fungus Resistance 100 – 104
Heat Resistance 49 – 54
Heat Shock 26 – 30
Low-temperature Properties 36 – 43
Restricted Shrinkage 14 – 19
Selection of Test Specimens 6
Secant Modulus 77 – 80 D882
Storage Life 31 – 35
Specific Gravity 69 and 70 D792
Stress Modulus 81 – 84 D412
Tensile Strength and Ultimate Elongation 44 – 48 D412
Thermal Endurance 92 and 93
Volume Resistivity 71 – 74 D257
Water Absorption 75 and 76 D570
Melting Point 100 – 104 D3418
ASTM Method
Procedure Sections Reference
Adhesive Peel Strength 98 – 104
Brittleness Temperature 40 D746
Color 55 and 56 D1535
Color Stability 57 – 62 D1535
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 Electrical Insulating Materials.
Current edition approved Nov. 1, 2013Jan. 1, 2021. Published December 2013February 2021. Originally approved in 1967. Last previous edition approved in 20092013
as D2671 – 09.D2671 – 13. DOI: 10.1520/D2671-13.10.1520/D2671-21.
*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 − 21
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.
1.3 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.
1.4 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 hazard statements, see SectionsSection 5 and 68.2for fire test safety
caveats see Test Methods D8355.
NOTE 1—These test methods are similar, but not identical to, those in IEC 60684–260684-2 (see also Note 9).
1.5 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
D257 Test Methods for DC Resistance o
...