ASTM E831 PDF
Coefficient of Linear Thermal Expansion by TMA or Dilatometer ASTM E, ASTM D, ISO Scope: Linear Thermal Expansion is used to determine . This standard is issued under the fixed designation E; the 1 This test method is under the jurisdiction of ASTM Committee E37 on Thermal. ASTM E Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis_机械/仪表_工程科技_专业资料。Designation: E
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Lateral dimensions shall not exceed 10 mm. E Terminology Relating to Thermophysical Properties. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but e83 not provided as part of the standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Send us a request Need help or have a question? It asym 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. NOTE 5—Direct readout of zero position and specimen length using the analyzer sensing element, where available, with a sufficient range has been found to be an accurate means of length determination.
ASTM E Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis_百度文库
Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply asmt and business processes. The test method may be used at lower or negative expansion levels with asmt accuracy and precision see Section The am shall not be calculated from a temperature range in which a transition point is noted.
It is the responsibility of the user to determine the necessary equivalency prior to use. E — 06 ambient temperature, accompanying a unit change in temperature identi? The test method may be used at astn or negative expansion levels with decreased accuracy and precision see Section.
Such heat treatment must be included in the report. An abrupt change in slope of the expansion curve indicates a transition f831 the material from one state to another.
Other heating rates may be used but shall be noted in the report.
Unless effects of moisture awtm to be studied, use of dry purge gas is recommended and is essential for operation at subambient temperatures. Active view current version of standard.
Coefficient of Linear Thermal Expansion ASTM E831, ASTM D696, ISO 11359
Through our network of qstm 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world.
Originally approved in Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. E83 furnace is raised and the temperature is brought to 20 degrees below the lowest temperature of interest. E Terminology Relating to Thermophysical Properties. Alternatively, a dilatometer can be used.
The effects of specimen temperature gradients may be compensated for by correction found through the use of suitable reference materials whose size and thermal conductivity are close to that of the test specimen.
Coefficient of Linear Thermal Expansion ASTM E, ASTM D, ISO
NOTE astn materials, particularly composites, may require heat treatment to condition the specimen prior to test to relieve stresses or distortions. This test can be used for design purposes and to determine if failure by thermal stress may occur.
The actual incremental force, mass, or stress above that required sstm make contact asym zero force shall be noted in the report. Link to Active This link will always route to aatm current Active version of the standard. Retest of a specimen may be used only as reference and shall not be treated as an independent test of a new specimen. Due to copyright restrictions, we are not able to provide copies of standards.
The measured Asm for the specimen should normally be corrected for this instrument baseline, especially for low expansion specimens. The observed expansion must be corrected for the difference in expansion between the specimen holder and probe obtained from a blank run in which no sample or a specimen of the material of construction of the probe is run. NOTE 7—For best results, specimen temperature gradients should be small.
Active view current version of standard. High heating rates, large specimen sizes, and low specimen thermal conductivity may lead to large specimen temperature gradients. Standards can be obtained from appropriate standards authorities. The temperature range may be extended depending upon the instrumentation and calibration materials used. This standard does not purport to address all of the safety problems, if any, associated with its use.