ASTM D2671 - 13

    Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use

    Active Standard ASTM D2671 | Developed by Subcommittee: D09.07

    Book of Standards Volume: 10.02


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    ASTM D2671

    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 2Provision 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. 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 1These test methods are similar, but not identical to, those in IEC 60684–2 (see also Note 9).


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    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


    ICS Code

    ICS Number Code 29.120.99 (Other electrical accessories)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D2671

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