ASTM E 2092 Standard Test Method for Distortion Temperature in Three-Point Bending by Thermomechanical Analysis
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ASTM E 2092 Document Information:
Title
Standard Test Method for Distortion Temperature in Three-Point Bending by Thermomechanical Analysis
ASTM International
Publication Date:
Mar 1, 2004
Scope:
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 measured. 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 (Method A)
and 1.82 MPa (Method B) (66 and 264 psi) equivalent to those used in
Test Method D 648. The test
may be performed over the range of temperature from ambient to
300°C.
NOTE 1 - This test method is intended to provide results similar to
those of Test Method D 648 but
are performed on a thermomechanical analyzer using a smaller test
specimen. Equivalence of results
to those obtained by Test Method D 648 has been demonstrated on a
limited number of materials.
Until the user demonstrates equivalence, the results of this test
method shall be considered to be
independent and unrelated to those of Test Method D 648.
Electronic instrumentation or automated data analysis and reduction
systems or treatments
equivalent to this test method may be used.
NOTE 2 - Since all electronic data treatments are not equivalent, the
user shall verify equivalency
to this test method.
SI values are the standard.
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.
There is no ISO standard equivalent to this test method.
Keywords:
- deflection
- deflection temperature under load
- heat distortion temperature
- strain
- stress
- temperature
- thermomechanical analysis (TMA)
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