ASTM D6604-00
(Practice)Standard Practice for Glass Transition Temperatures of Hydrocarbon Resins by Differential Scanning Calorimetry
Standard Practice for Glass Transition Temperatures of Hydrocarbon Resins by Differential Scanning Calorimetry
SIGNIFICANCE AND USE
Thermal analysis provides a rapid method for determining transition temperatures in HC resins that possess them.
This practice is useful for both quality assurance and research.
SCOPE
1.1 This practice covers determination of glass transition temperatures of hydrocarbon (HC) resins by differential scanning calorimetry (DSC).
1.2 This practice is applicable to HC resins as defined in Terminology D6440. The normal operating temperature range is from the cryogenic region to approximately 180oC. The temperature range can be extended.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.4 Further discussion of glass transition can be found in Test Method D3418, and Test Method E1356.
1.5 This standard does not purport to address all of the safety concerns, 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.
General Information
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Standards Content (Sample)
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Designation:D6604–00
Standard Practice for
Glass Transition Temperatures of Hydrocarbon Resins by
Differential Scanning Calorimetry
This standard is issued under the fixed designation D 6604; 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 and a reference material is measured as a function of tempera-
ture, while the substance and reference material are subjected
1.1 This practice covers determination of glass transition
to a controlled temperature program.
temperatures of hydrocarbon (HC) resins by differential scan-
3.1.1.1 Discussion—The record is the DSC curve. Two
ning calorimetry (DSC).
modes, power-compensation DSC and heat-flux DSC, can be
1.2 This practice is applicable to HC resins as defined in
distinguished, depending on the method of measurement used.
Terminology D 6440. The normal operating temperature range
3.2 For other definitions of terms relating to thermal analy-
is from the cryogenic region to approximately 180°C. The
sis, see Terminology E 473.
temperature range can be extended.
1.3 The values stated in SI units are to be regarded as
4. Summary of Practice
standard. The values given in parentheses are for information
4.1 This practice consists of heating or cooling the test
only.
material at a controlled rate, in a controlled atmosphere, and
1.4 Further discussion of glass transition can be found in
continuously monitoring with a suitable sensing device, the
Test Method D 3418, and Test Method E 1356.
difference in heat input between a reference material and a test
1.5 This standard does not purport to address all of the
material due to energy changes in the material. Absorption or
safety concerns, if any, associated with its use. It is the
release of energy marks a transition in the specimen resulting
responsibility of the user of this standard to establish appro-
in a corresponding baseline shift in the heating or cooling
priate safety and health practices and determine the applica-
curve.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
5.1 Thermal analysis provides a rapid method for determin-
2.1 ASTM Standards:
ing transition temperatures in HC resins that possess them.
D 3418 Test Method for Transition Temperatures of Poly-
2 5.2 This practice is useful for both quality assurance and
mers by Differential Scanning Calorimetry
3 research.
D 6440 Terminology Relating to Hydrocarbon Resins
E 473 Terminology Relating to Thermal Analysis
6. Apparatus
E 1356 Test Method for Glass Transition Temperatures by
6.1 Differential Scanning Calorimeter —An instrument ca-
Differential Scanning Calorimetry or Differential Thermal
pable of heating or cooling at rates up to 20 6 1°C/minute and
Analysis
automatically recording the difference in input between the
sample and a reference material to the required sensitivity and
3. Terminology
precision.
3.1 Definitions:
6.2 Sample Tubes or Pans—Borosilicate glass tubes are
3.1.1 differential scanning calorimetry (DSC)— A tech-
used for certain applications and aluminum or other metal pans
nique in which the difference in energy inputs into a substance
of high thermal conductivity for other applications.
6.3 Reference Material— Glass beads, indium, alumina,
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
silicon carbide, or mercury in a hermetically sealed sample
Related Coatings, Materials, and Applications and is the direct responsibility of
pan, or a material known to be unaffected by repeated heating
Subcommittee D01.38 on Hydrocarbon Resins.
Current edition approved Nov. 10, 2000. Published January 2001.
and cooling and free from interfering transitions may be used.
Annual Book of ASTM Standards, Vol 08.02.
The thermal diffusivity should be as close as possible to that of
Annual Book of ASTM Standards, Vol 06.03.
4 the sample.
Annual Book of ASTM Standards, Vol 14.02.
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