ASTM E1953-02

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Designation:E1953–02
Standard Practice for
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Description of Thermal Analysis Apparatus
This standard is issued under the fixed designation E 1953; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope inputs specifically established for each test method (for ex-
ample, sensitivity of temperature sensor).
1.1 This practice covers generic descriptions of apparatus
4.3 Additionalcomponentsandaccessoriesmaybeaddedas
used for thermal analysis measurements and its purpose is to
needed, with the appropriate performance requirements speci-
achieve uniformity in description of thermal analysis instru-
fied. Items listed in these descriptions but not used in a test
mentation throughout standard test methods. These descrip-
method (for example, vacuum system) may be deleted.
tions should be incorporated into any test method where the
thermal analysis instrumentation described herein is cited.
5. Apparatus
1.2 Each description contains quantifiable instrument per-
5.1 Differential Scanning Calorimeter (DSC)—The essen-
formance requirements to be specified for each test method.
tial instrumentation required to provide the minimum differen-
1.3 This standard does not purport to address all of the
tial scanning calorimetric capability for this method includes:
safety concerns, if any, associated with its use. It is the
5.1.1 DSC Test Chamber composed of:
responsibility of the user of this standard to establish appro-
5.1.1.1 A furnace(s) to provide uniform controlled heating
priate safety and health practices and determine the applica-
or cooling of a specimen and reference to a constant tempera-
bility of regulatory limitations prior to use.
ture or at a constant rate within the applicable temperature
2. Referenced Documents range of this method.
5.1.1.2 Atemperature sensor to provide an indication of the
2.1 ASTM Standards:
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specimen temperature to 6 ______ K.
E 473 Terminology Relating to Thermal Analysis
5.1.1.3 Differential sensors to detect a heat flow (power)
E 1142 Terminology Relating to Thermophysical Proper-
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difference between the specimen and reference with a range of
ties
______ mW and a sensitivity of 6 _______ µW.
SI 10 Standard for Use of the International System of Units
2 5.1.1.4 Ameansofsustainingatestchamberenvironmentof
(SI): The Modern Metric System
______ at a purge rate of mL/min 6 ______ mL/min.
3. Terminology
NOTE 1—Typically, ______ % pure nitrogen, argon, or helium is
3.1 Technical terms used in this document are found in
employed when oxidation in air is a concern. Unless effects of moisture
are to be studied, use of dry purge gas is recommended and is essential for
Terminologies E 473 and E 1142 and Practice SI 10.
operation at subambient temperatures.
4. Significance and Use
5.1.2 A temperature controller , capable of executing a
4.1 Section 5 identifies essential instrumentation and acces-
specific temperature program by operating the furnace(s)
sories required to perform thermal analysis for a variety of
between selected temperature limits at a rate of temperature
different instruments. The appropriate generic instrument de-
change of ______ K/min constant to 6 ______ K/min (list
scription should be included in any test method describing use
coolingrequirementsseparatelyifdifferent)oratanisothermal
or application of the thermal analysis instrumentation de-
temperature constant to 6 ______ K.
scribed herein.
5.1.3 A recording device, capable of recording and display-
4.2 Units included in these descriptions are used to identify
ing on the Y-axis any fraction of the heat flow signal (DSC
needed performance criteria and are considered typical. Other
curve) including the signal noise as a function of any fraction
units may be used when including these descriptions in a
of the temperature (or time) signal on the X-axis including the
specific test method. Items underlined constitute required
signal noise.
5.1.4 Containers (pans, crucibles, vials, lids, closures, seals,
etc.) that are inert to the specimen and reference materials and
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This practice is under the jurisdiction of Committee E37 on Thermal Measure-
that are of suitable structural shape and integrity to contain the
ments and is the direct responsibility of Subcommittee E37.01 on Test Methods and
specimenandreferenceinaccordancewiththespecificrequire-
Recommended Practices.
Current edition approved May 10, 2002. Published August 2002.
ments of this test method including:
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Annual Book of ASTM Standards, Vol 14.02.
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