ASTM E2070-13
(Test Method)Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods
Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods
SIGNIFICANCE AND USE
6.1 This test method is 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 this test method.
6.3 The activation energy results obtained by this test method 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 this test method 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 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). This test method is 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 test method is 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2070 − 13
Standard Test Method 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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3350Specification for Polyethylene Plastics Pipe and Fit-
tings Materials
1.1 Test MethodsA, B, and C determine kinetic parameters
D3895Test Method for Oxidative-Induction Time of Poly-
for activation energy, pre-exponential factor and reaction order
olefins by Differential Scanning Calorimetry
usingdifferentialscanningcalorimetryfromaseriesofisother-
D4565Test Methods for Physical and Environmental Per-
mal experiments over a small (≈10 K) temperature range.Test
formance Properties of Insulations and Jackets for Tele-
Method A is applicable to low nth order reactions. Test
communications Wire and Cable
Methods B and C are applicable to accelerating reactions such
asthermosetcuringorpyrotechnicreactionsandcrystallization D5483Test Method for Oxidation Induction Time of Lubri-
transformations in the temperature range from 300 to 900 K catingGreasesbyPressureDifferentialScanningCalorim-
(nominally30to630°C).Thistestmethodisapplicableonlyto
etry
thesetypesofexothermicreactionswhenthethermalcurvesdo
D6186Test Method for Oxidation Induction Time of Lubri-
not exhibit shoulders, double peaks, discontinuities or shifts in
cating Oils by Pressure Differential Scanning Calorimetry
baseline.
(PDSC)
E473Terminology Relating to Thermal Analysis and Rhe-
1.2 Test Methods D and E also determines the activation
ology
energy of a set of time-to-event and isothermal temperature
data generated by this or other procedures E537Test Method for The Thermal Stability of Chemicals
by Differential Scanning Calorimetry
1.3 The values stated in SI units are to be regarded as
E698Test Method for Arrhenius Kinetic Constants for
standard. No other units of measurement are included in this
Thermally Unstable Materials Using Differential Scan-
standard.
ning Calorimetry and the Flynn/Wall/Ozawa Method
1.4 This test method is similar but not equivalent to
E967Test Method for Temperature Calibration of Differen-
ISODIS11357,Part5,andprovidesmoreinformationthanthe
tial Scanning Calorimeters and Differential ThermalAna-
ISO standard.
lyzers
1.5 This standard does not purport to address all of the
E968Practice for Heat Flow Calibration of Differential
safety concerns, if any, associated with its use. It is the
Scanning Calorimeters
responsibility of the user of this standard to establish appro-
E1142Terminology Relating to Thermophysical Properties
priate safety and health practices and determine the applica-
E1445Terminology Relating to Hazard Potential of Chemi-
bility of regulatory limitations prior to use. Specific precau-
cals
tionary statements are given in Section 8.
E1858Test Methods for Determining Oxidation Induction
Time of Hydrocarbons by Differential Scanning Calorim-
2. Referenced Documents
2 etry
2.1 ASTM Standards:
E1860Test Method for Elapsed Time Calibration of Ther-
mal Analyzers
1
ThistestmethodisunderthejurisdictionofASTMCommitteeE37onThermal
E1970PracticeforStatisticalTreatmentofThermoanalytical
Measurements and is the direct responsibility of Subcommittee E37.01 on Calo-
Data
rimetry and Mass Loss.
Current edition approved Sept. 15, 2013. Published October 2013. Originally
approved in 2000. Last previous edition approved in 2008 as E2070–08. DOI:
10.1520/E2070-13.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2070 − 13
E2041Test Method for Estimating Kinetic Parameters by where:
Differential Scanning Calorimeter Using the Borchardt
n, ₥, and p = partial reaction order terms.
and Daniels Method
NOTE 1—There are a large number of conversion function expressions
4
for[f(α)]. Thosedescribedherearethemostcommonbutarenottheonly
E2046TestMethodforReactionInductionTimebyThermal
functions suitable for this test method. Eq 1 is known as the general rate
Analysis
5,6
3 equation while Eq 3 is the accelerating (or Sestak-Berggren) equation.
2.2 ISO Standard:
Eq 4 is the accelerating Avrami equation. Eq 2 is used for nth order
ISODIS11357Part5:DeterminationofTemperatureand/or
reactions while Eq 3 or Eq 4 are used for
...
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 − 08 E2070 − 13
Standard Test Method 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
1.1 Test Method A determines 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( ≈10 K)
temperature range. This treatment Test Method A is applicable to low nth order reactions and to autocatalyzedreactions. 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 (30 to 630 °C). (nominally 30 to 630°C). This test method is 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 Method B 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.procedures
1.3 Test Method C determines the activation energy and initial heat flow from a series of isothermal experiments over a small
temperature range. Because this approach only determines kinetic parameter of activation energy, no knowledge of the kinetic
model is required. Therefore it is considered to be “model free”. This approach is broadly applicable to a variety of complicated
reactions including those not well understood.
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 test method is similar but not equivalent toISO DIS 11357, 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 and health practices and determine the applicability of regulatory
limitations prior to use. Specific precautionary statements are given in Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:
D3550D3350 Practice for Thick Wall, Ring-Lined, Split Barrel, Drive Sampling of SoilsSpecification 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
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 The Thermal Stability of Chemicals by Differential Scanning Calorimetry
E698 Test Method for Arrhenius Kinetic Constants 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
1
This test method is 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 Feb. 1, 2008Sept. 15, 2013. Published March 2008October 2013. Originally approved in 2000. Last previous edition approved in 20032008 as
E2070 – 03.E2070 – 08. DOI: 10.1520/E2070-08.10.1520/E2070-13.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2070 − 13
E968 Practice for Heat Flow Calibration of Differential Scanning Calorimeters
E1142 Terminology Relating to Therm
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.