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1.1 Test Methods A, B, and C determine kinetic parameters for activation energy, pre-exponential factor and reaction order using differential scanning calorimetry from a series of isothermal experiments over a small ( 10 K) temperature range. Test Method A is applicable to low nth order reactions. Test Methods B and C are applicable to accelerating reactions such as thermoset curing or pyrotechnic reactions and crystallization transformations in the temperature range from 300 to 900 K (nominally 30 to 630°C). These test methods are applicable only to these types of exothermic reactions when the thermal curves do not exhibit shoulders, double peaks, discontinuities or shifts in baseline.

1.2 Test Methods D and E also determines the activation energy of a set of time-to-event and isothermal temperature data generated by this or other procedures

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 These test methods are similar but not equivalent to ISO DIS 11357, Part 5, and provides more information than the ISO 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 

Document History

  1. ASTM E2070-13(2018)

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    Standard Test Methods for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

    • Most Recent
  2. ASTM E2070-13


    Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

    • Historical Version
  3. ASTM E2070-08


    Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

    • Historical Version
  4. ASTM E2070-03


    Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

    • Historical Version
  5. ASTM E2070-00


    Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

    • Historical Version