ASTM E2092 - 13

    Standard Test Method for Distortion Temperature in Three-Point Bending by Thermomechanical Analysis

    Active Standard ASTM E2092 | Developed by Subcommittee: E37.10

    Book of Standards Volume: 14.02


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    Significance and Use

    5.1 Data obtained by this test method shall not be used to predict the behavior of materials at elevated temperatures except in applications in which the conditions of time, temperature, method of loading, and stress are similar to those specified in the test.

    5.2 This standard is particularly suited for quality control and development work. The data are not intended for use in design or predicting endurance at elevated temperatures.

    1. Scope

    1.1 This test method describes the determination of the temperature at which the specific modulus of a test specimen is realized by deflection in three-point bending. This temperature is identified as the distortion temperature. The distortion temperature is that temperature at which a test specimen of defined geometry deforms to a level of strain under applied stress of 0.455 MPa (66 psi) (Method A) and 1.82 MPa (264 psi) (Method B) equivalent to those used in Test Method D648. The test may be performed over the range of temperature from ambient to 300°C.

    Note 1This test method is intended to provide results similar to those of Test Method D648 but are performed on a thermomechanical analyzer using a smaller test specimen. Equivalence of results to those obtained by Test Method D648 has been demonstrated on a limited number of materials. The results of this test method shall be considered to be independent and unrelated to those of Test Method D648 unless the user demonstrates equivalence.

    1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

    1.4 There is no ISO standard equivalent to this test method.


    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

    D648 Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position

    E473 Terminology Relating to Thermal Analysis and Rheology

    E1142 Terminology Relating to Thermophysical Properties

    E1363 Test Method for Temperature Calibration of Thermomechanical Analyzers

    E2113 Test Method for Length Change Calibration of Thermomechanical Analyzers

    E2206 Test Method for Force Calibration of Thermomechanical Analyzers


    ICS Code

    ICS Number Code 83.080.01 (Plastics in general)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/E2092

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E2092-13, Standard Test Method for Distortion Temperature in Three-Point Bending by Thermomechanical Analysis, ASTM International, West Conshohocken, PA, 2013, www.astm.org

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