ASTM E2070-00 - 10.3.2000
 
1. Scope

1.1 Test Method A determines kinetic parameters for activation energy, frequency factor and reaction order using differential scanning calorimetry from a series of isothermal experiments over a small ( 10 K) temperature range. This treatment is applicable to low nth order reactions and to autocatalyzed reactions such as thermoset curing or pyrotechnic reactions and crystallization transformations in the temperature range from 300 to 900 K (30 to 630 C). This test method is applicable only to these types of exothermic reactions when the thermal curves do not exhibit shoulders, discontinuities or shifts in baseline.

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

1.3 Electronic instrumentation or automated data analysis systems or treatments equivalent to this test method may be used.

Note 1

Since all electronic data systems are not equivalent, the user must verify the applicability of the treatment to this method.

1.4 SI units are the standard.

1.5 This test method is similar but not equivalent to ISO 11357, Part 5, and provides more information than the ISO standard.

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. Specific precautionary statements are given in Section .

 
2. Referenced Documents

E1860-23

Standard Test Method for Elapsed Time Calibration of Thermal Analyzers

E1970-23

Standard Practice for Statistical Treatment of Thermoanalytical Data

E473-23b

Standard Terminology Relating to Thermal Analysis and Rheology (Includes all amendments and changes 10/5/2023).

E698-23

Standard Test Method for Kinetic Parameters for Thermally Unstable Materials Using Differential Scanning Calorimetry and the Flynn/Wall/Ozawa Method

E967-18

Standard Test Method for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers

E968-02

Standard Practice for Heat Flow Calibration of Differential Scanning Calorimeters

D3895-19

Standard Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry

D4565-20

Standard Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable

D3350-21

Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

D5483-21

Standard Test Method for Oxidation Induction Time of Lubricating Greases by Pressure Differential Scanning Calorimetry

D6186-19

Standard Test Method for Oxidation Induction Time of Lubricating Oils by Pressure Differential Scanning Calorimetry (PDSC)

E537-20

Standard Test Method for Thermal Stability of Chemicals by Differential Scanning Calorimetry

E2046-19

Standard Test Method for Reaction Induction Time by Thermal Analysis

ISO?DIS?11357

Part 5: Determination of Temperature and/or Time of Reaction and Reaction Kinetics

E1858-23

Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry

E2041-23

Standard Test Method for Estimating Kinetic Parameters by Differential Scanning Calorimeter Using the Borchardt and Daniels Method

E1445-08(2023)

Standard Terminology Relating to Hazard Potential of Chemicals

E1142-23b

Standard Terminology Relating to Thermophysical Properties (Includes all amendments and changes 10/5/2023).