Standard Test Method for Transition Temperatures of Polymers by Differential Scanning Calorimetry
|Publication Date:||10 April 1999|
|ICS Code (Plastics in general):||83.080.01|
1. Scope *
1.1 This test method covers determination of transition temperatures of polymers (Note 1) by 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 Methods D 789.
NOTE 2--This test method may be used in conjunction with Test Methods D 3417 or E 793 to simultaneously determine the enthalpies of melting and crystallization.
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 specimens 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 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 3--This standard is similar but not equivalent to ISO 11357-1 and ISO 11357-2. The ISO procedures provide additional information not supplied by this test method.