Standard Historical Last Updated: Dec 16, 2013 Track Document
ASTM D2671-09

Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use

Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use D2671-09 ASTM|D2671-09|en-US Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use Standard new BOS Vol. 10.02 Committee D09
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Significance and Use

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.

Variations in these test methods or alternate contemporary methods of measurement may be used 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.


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 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.

1.3 The procedures appear in the following sections:


ASTM Method
Adhesive Peel Strength98-104
Brittleness Temperature40 D746
Color55 and 56D1535
Color Stability57-62D1535
Copper Stability93
Corrosion Testing89-95
Dielectric Breakdown20-25D149
Dimensions8-13 D876
Fluid Resistance63-67
Fungus Resistance104-108
Heat Resistance49-54
Heat Shock26-30
Low-Temperature Properties36-43
Restricted Shrinkage14-19
Selection of Test Specimens6
Secant Modulus81-84D882
Storage Life31-35
Specific Gravity73 and 74D792
Stress Modulus85-88D412
Tensile Strength and Ultimate Elongation44-48D412
Thermal Endurance96 and 97
Volume Resistivity75-78D257
Water Absorption79 and 80D570
Melting Point104-108D3418

1.4 This is a fire-test-response 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 606842 (see also Note 9).

68.1 This is a fire-test-response standard. The test procedures measure the resistance of the tubing to ignition and propagation of flame after ignition under prescribed conditions of test.

68.2 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.

68.3 Fire testing is inherently dangerous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

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Book of Standards Volume: 10.02
Developed by Subcommittee: D09.07
Pages: 19
DOI: 10.1520/D2671-09
ICS Code: 29.035.20