ASTM E2070-23
(Test Method)Standard Test Methods for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods
Standard Test Methods for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods
SIGNIFICANCE AND USE
6.1 These test methods are useful for research and development, quality assurance, regulatory compliance, and specification acceptance purposes.
6.2 The determination of the order of a chemical reaction or transformation at specific temperatures or time conditions is beyond the scope of these test methods.
6.3 The activation energy results obtained by these test methods may be compared with those obtained from Test Method E698 for nth order and accelerating reactions. Activation energy, pre-exponential factor, and reaction order results by these test methods may be compared to those for Test Method E2041 for nth order reactions.
SCOPE
1.1 Test Methods A, B, and C determine kinetic parameters for activation energy, pre-exponential factor and reaction order using differential scanning calorimetry (DSC) 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 K to 900 K (nominally 30 °C 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 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.
1.5 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.
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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.
Designation: E2070 − 23
Standard Test Methods for
Kinetic Parameters by Differential Scanning Calorimetry
1
Using Isothermal Methods
This standard is issued under the fixed designation E2070; 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.
1. Scope* 2. Referenced Documents
2
1.1 Test Methods A, B, and C determine kinetic parameters 2.1 ASTM Standards:
for activation energy, pre-exponential factor and reaction order D3350 Specification for Polyethylene Plastics Pipe and Fit-
using differential scanning calorimetry (DSC) from a series of tings Materials
isothermal experiments over a small (≈10 K) temperature D3895 Test Method for Oxidative-Induction Time of Poly-
range. Test Method A is applicable to low nth order reactions. olefins by Differential Scanning Calorimetry
Test Methods B and C are applicable to accelerating reactions D4565 Test Methods for Physical and Environmental Per-
such as thermoset curing or pyrotechnic reactions and crystal- formance Properties of Insulations and Jackets for Tele-
lization transformations in the temperature range from 300 K communications Wire and Cable
to 900 K (nominally 30 °C to 630 °C). These test methods are D5483 Test Method for Oxidation Induction Time of Lubri-
applicable only to these types of exothermic reactions when the cating Greases by Pressure Differential Scanning Calorim-
thermal curves do not exhibit shoulders, double peaks, discon- etry
tinuities or shifts in baseline. D6186 Test Method for Oxidation Induction Time of Lubri-
cating Oils by Pressure Differential Scanning Calorimetry
1.2 Test Methods D and E also determines the activation
(PDSC)
energy of a set of time-to-event and isothermal temperature
E473 Terminology Relating to Thermal Analysis and Rhe-
data generated by this or other procedures
ology
1.3 The values stated in SI units are to be regarded as
E537 Test Method for Thermal Stability of Chemicals by
standard. No other units of measurement are included in this
Differential Scanning Calorimetry
standard.
E698 Test Method for Kinetic Parameters for Thermally
1.4 This standard does not purport to address all of the Unstable Materials Using Differential Scanning Calorim-
safety concerns, if any, associated with its use. It is the
etry and the Flynn/Wall/Ozawa Method
responsibility of the user of this standard to establish appro- E967 Test Method for Temperature Calibration of Differen-
priate safety, health, and environmental practices and deter-
tial Scanning Calorimeters and Differential Thermal Ana-
mine the applicability of regulatory limitations prior to use. lyzers
Specific precautionary statements are given in Section 8.
E968 Practice for Heat Flow Calibration of Differential
3
1.5 This international standard was developed in accor- Scanning Calorimeters (Withdrawn 2023)
dance with internationally recognized principles on standard-
E1142 Terminology Relating to Thermophysical Properties
ization established in the Decision on Principles for the E1445 Terminology Relating to Hazard Potential of Chemi-
Development of International Standards, Guides and Recom-
cals
mendations issued by the World Trade Organization Technical E1858 Test Methods for Determining Oxidation Induction
Barriers to Trade (TBT) Committee.
Time of Hydrocarbons by Differential Scanning Calorim-
etry
1 2
These test methods are under the jurisdiction of ASTM Committee E37 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Thermal Measurements and is the direct responsibility of Subcommittee E37.01 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Calorimetry and Mass Loss. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2023. Published October 2023. Originally the ASTM website.
3
approved in 2000. Last previous edition approved in 2018 as E2070 – 13 (2018). The last approved version of this historical standard is referenced on
DOI: 10.1520/E2070-23. www.astm.org.
*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
1
---------------------- Page: 1 ----------------------
E2070 − 23
₥ n
E1860 Test Method for Elapsed Time Calibration of Ther- f α 5 α 1 2 α (3)
~ ! ~ !
2
mal Analyzers ~p 2 1!⁄p
f ~α! 5 p~1 2 α!@2 1 n ~1 2 α!# (4)
3
E1970 Practice for Statistical Treatment
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2070 − 13 (Reapproved 2018) E2070 − 23
Standard Test Methods for
Kinetic Parameters by Differential Scanning Calorimetry
1
Using Isothermal Methods
This standard is issued under the fixed designation E2070; 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.
1. Scope Scope*
1.1 Test Methods A, B, and C determine kinetic parameters for activation energy, pre-exponential factor and reaction order using
differential scanning calorimetry (DSC) from a series of isothermal experiments over a small ( ≈10 (≈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 300300 K to 900 K
(nominally 30 to 630°C).30 °C 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.
1.4 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.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials
D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
D4565 Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications
Wire and Cable
D5483 Test Method for Oxidation Induction Time of Lubricating Greases by Pressure Differential Scanning Calorimetry
1
These test methods are under the jurisdiction of ASTM Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E37.01 on Calorimetry
and Mass Loss.
Current edition approved April 1, 2018Oct. 1, 2023. Published May 2018October 2023. Originally approved in 2000. Last previous edition approved in 20132018 as
E2070 – 13.E2070 – 13 (2018). DOI: 10.1520/E2070-13R18.10.1520/E2070-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1
---------------------- Page: 1 ----------------------
E2070 − 23
D6186 Test Method for Oxidation Induction Time of Lubricating Oils by Pressure Differential Scanning Calorimetry (PDSC)
E473 Terminology Relating to Thermal Analysis and Rheology
E537 Test Method for Thermal Stability of Chemicals by Differential Scanning Calorimetry
E698 Test Method for Kinetic Parameters for Thermally Unstable Materials Using Differential Scanning Calorimetry and the
Flynn/Wall/Ozawa Method
E967 Test Method for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers
3
E968 Practice for Heat Flow Calibration of Differential Scanning Calorimeters (Withdrawn 2023)
E1142 Terminology Relating to Thermophysical Properties
E1445 Terminology Relating to Hazard Potential of Chemicals
E1858 Test Methods for Determining Oxidation Induction Time of
...
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