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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ASTM E – THERMAL EXPANSION BY TMA

Link to Active This link will always route to the current Active version of the standard. Validating the specifications, value and astj of your raw materials, products and assets. The specimen is placed in the Dilatometer at room temperature, and the height gauge is positioned and zeroed.

This test method uses a smaller specimen and substantially different apparatus axtm Test Methods E and D Alternatively, a dilatometer can be used. Active view current version of standard. Assurance Testing Inspection Certification.

Such heat treatment must be included in the report.

Other heating rates may be used but shall be aastm in the report. The test method may be used at lower or negative expansion levels with decreased accuracy and precision see Section NOTE 4—Some materials, particularly composites, may require heat treatment to condition the specimen prior to test to relieve stresses or distortions.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

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E Terminology Relating to Thermophysical Properties. A graph is produced. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

Work Item s – proposed revisions of this standard. Linear Thermal Expansion is used to determine the rate at which a material expands as a function of temperature.

Auditing Consulting Sourcing Training. The test method may be used at lower or negative expansion levels with decreased accuracy and precision see Section For the TMA, the test specimen should be between 2 and 10 mm. Depending on the compressibility of the specimen and the temperature range to be investigated, a force of between 1 and mN 0. Due to copyright restrictions, we are not able to provide copies of standards.

Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Unless effects of moisture are to be studied, use of dry purge gas is recommended and is essential for operation at subambient temperatures. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Note 1 Users of this test method are expressly advised that all such instruments or techniques may not be equivalent.

The specimen is heated at a specified rate, often ten degrees a minute, over the desired temperature range.

Coefficient of Linear Thermal Expansion ASTM E831, ASTM D696, ISO 11359

The coefficient of linear thermal expansion is calculated between the desired temperature ranges. The actual incremental force, mass, or stress above that required to make contact with zero force shall be noted in the report.

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Precision and Bias 6 In the case of dispute, only the manual procedures described in astmm test method are to be considered valid.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not aastm as part of the standard. For the dilatometer, the test sample should be approximately Influence of thermal a NOTE 3—It has been found with some materials that this level of?

This standard does not purport to address all of the safety problems, if any, associated with its use.

ASTM E Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis_百度文库

Related information can be found in Refs. E8331 is the responsibility of the user of this standard to establish appro- This test method is under the jurisdiction of ASTM Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E Retest of a specimen may be used only as reference and shall not be treated as an independent test of a new specimen.

Active view current version of standard. Summary of Test Method 4. Lateral dimensions shall not exceed 10 mm.