ASTM D3418-99
(Test Method)Standard Test Method for Transition Temperatures of Polymers By Differential Scanning Calorimetry
Standard Test Method for Transition Temperatures of Polymers By Differential Scanning Calorimetry
SCOPE
1.1 This test method covers determination of transition temperatures of polymers (Note 1) by differential thermal analysis or differential scanning calorimetry.
Note 1-First-order transition temperatures or melting points of semicrystalline polymers may also be determined or approximated by the procedures found in Test Method D 2117 and Test Methods D 789.
1.2 This test method is applicable to polymers in granular form (below 60 mesh preferred, avoiding grinding if possible) or to any fabricated shape from which appropriate samples can be cut.
1.3 The normal operating temperature range is from the cryogenic region to 600°C. With special equipment, the temperature range can be extended.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 This standard may involve hazardous materials, operations, and equipment. 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.
Note 2- To date, there is no similar or equivalent approved ISO standard.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: D 3418 – 99
Standard Test Method for
Transition Temperatures of Polymers By Differential
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Scanning Calorimetry
This standard is issued under the fixed designation D 3418; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* lization of Polymers by Differential Scanning Calorimetry
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E 473 Terminology Relating to Thermal Analysis
1.1 This test method covers determination of transition
E 563 Practice for Preparation and Use of Freezing Point
temperatures of polymers (Note 1) by differential scanning
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Reference Baths
calorimetry.
E 793 Test Method for Heats of Fusion and Crystallization
NOTE 1—First-order transition temperatures or melting points of semi- 3
by Differential Scanning Calorimetry
crystalline polymers may also be determined or approximated by the
E 794 Test Method for Melting and Crystallization Tem-
procedures found in Test Methods D 789D 789.
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perature by Thermal Analysis
NOTE 2—This test method may be used in conjunction with Test
E 967 Practice for Temperature Calibration of Differential
Methods D 3417D 3417 or E 793E 793 to simultaneously determine the
Scanning Calorimeters and Differential Thermal Analyz-
enthalpies of melting and crystallization.
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ers
1.2 This test method is applicable to polymers in granular
E 1142 Terminology Relating to Thermophysical Proper-
form (below 60 mesh preferred, avoiding grinding if possible)
3
ties
or to any fabricated shape from which appropriate specimens
E 1356 Test Method for Glass Transition Temperatures by
can be cut.
Differential Scanning Calorimetry or Differential Thermal
1.3 The normal operating temperature range is from the
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Analysis
cryogenic region to 600°C. With special equipment, the tem-
E 1953 Practice for Description of ThermalAnalysisAppa-
perature range can be extended.
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ratus
1.4 The values stated in SI units are to be regarded as the
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2.2 ISO Standards:
standard.
11357-1 Plastics—Differential Scanning Calorimetry
1.5 This standard does not purport to address all of the
(DSC)—Part 1: General Principles
safety concerns, if any, associated with its use. It is the
11357-2 Plastics—Differential Scanning Calorimetry
responsibility of the user of this standard to establish appro-
(DSC)—Part 2: Determination of Glass Transition Tem-
priate safety and health practices and determine the applica-
perature
bility of regulatory limitations prior to use.
3. Terminology
NOTE 3—ThisstandardissimilarbutnotequivalenttoISO11357-1and
ISO 11357-2. The ISO procedures provide additional information not
3.1 Specialized terms used in this test method are defined in
supplied by this test method.
Terminologies E 473E 473 and E 1142E 1142.
2. Referenced Documents
4. Summary of Test Method
2.1 ASTM Standards:
4.1 This test method consists of heating or cooling the test
D 789 Test Methods for Determination of Relative Viscos-
material at a controlled rate in a specified purge gas at a
ity, Melting Point, and Moisture Content of Polyamide
controlled flow rate and continuously monitoring with a
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(PA)
suitable sensing device the difference in temperature or the
D 3417 Test Method for Enthalpies of Fusion and Crystal-
difference in heat input between a reference material and a test
material due to energy changes in the material. A transition is
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ThistestmethodisunderthejurisdictionofASTMCommitteeD-20onPlastics
and is the direct responsibility of Subcommittee D20.30 on Thermal Properties
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(Section D20.30.07). Annual Book of ASTM Standards, Vol 14.02.
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Current edition approved April 10, 1999. Published July 1999. Originally Annual Book of ASTM Standards, Vol 14.03.
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published as D 3418 – 75. Last previous edition D 3418 – 97. Available from American National Standards Institute, 11 W. 42nd St., 13th
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Annual Book of ASTM Standards, Vol 08.01. Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D3418–99
marked by absorption or release of energy by the specimen 7.1.1.2 Temperature Sensor, to provide an indication of the
resulting in a corresponding endothermic or exothermic peak specimen temperature to 610 mK (0.01°C).
or baseline shift in the heating or cooling curve.
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