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ASTM E831-05

Historical Revision

Standard Test Method for Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis

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1.1 This test method determines the apparent coefficient of linear thermal expansion of solid materials using thermomechanical analysis techniques. Related information can be found in Refs. (1-12)².

1.2 This test method is applicable to solid materials that exhibit sufficient rigidity over the test temperature range such that the sensing probe does not produce indentation of the specimen.

1.3 The recommended lower limit of coefficient of linear thermal expansion measured with this test method is 5 m/(mC). The test method may be used at lower (or negative) expansion levels with decreased accuracy and precision (see Section 11).

1.4 This test method is applicable to the temperature range from 120 to 900 C. The temperature range may be extended depending upon the instrumentation and calibration materials used.

1.5 Computer or electronic based instruments, techniques, or data treatment equivalent to this test method may also be used.

Note 1—Users of this test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user to determine the necessary equivalency prior to use.

1.6 SI values are the standard.

1.7 This test method is related to ISO 11359-2 but is significantly different in technical detail.

1.8 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 determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number E831
Publication Date May 1, 2005
Language en - English
Page Count 5
Revision Level 05
Supercedes
Committee E37.10
Publish Date Document Id Type View
May 1, 2024 E0831-24 Revision
April 1, 2019 E0831-19 Revision
Aug. 1, 2014 E0831-14 Revision
Nov. 1, 2013 E0831-13 Revision
March 1, 2012 E0831-12 Revision
March 15, 2006 E0831-06 Revision
May 1, 2005 E0831-05 Revision
Sept. 10, 2003 E0831-03 Revision
March 10, 2000 E0831-00 Revision