Significance and Use

The kinetic parameters provided in this standard may be used to evaluate the performance of a standard, apparatus, techniques or software for the determination parameters (such as Test Methods E698 , E1641 , E2041 , or E2070 ) using thermal analysis techniques such as differential scanning calorimetry, and accelerating rate calorimetry (Guide E1981 ). The results obtained by these approaches may be compared to the values provided by this practice.

Note 4Not all reference materials are suitable for each measurement technique.

1. Scope

1.1 It is the purpose of this Practice to provide kinetic parameters for reference materials used for evaluation of thermal analysis methods, apparatus and software where enthalpy and temperature are measured. This Practice addresses both exothermic and endothermic, n th order and autocatalytic reactions.

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

1.3 There is no International Organization for Standardization (ISO) equivalent to 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E473 Terminology Relating to Thermal Analysis and Rheology

E698 Test Method for Arrhenius Kinetic Constants for Thermally Unstable Materials Using Differential Scanning Calorimetry and the Flynn/Wall/Ozawa Method

E1142 Terminology Relating to Thermophysical Properties

E1641 Test Method for Decomposition Kinetics by Thermogravimetry

E1981 Guide for Assessing Thermal Stability of Materials by Methods of Accelerating Rate Calorimetry

E2041 Test Method for Estimating Kinetic Parameters by Differential Scanning Calorimeter Using the Borchardt and Daniels Method

E2070 Test Method for Kinetic Parameters by Differential Scanning Calorimetry Using Isothermal Methods

Keywords

activation energy; kinetics; pre-exponential factor; reaction order; thermal analysis;

ICS Code

ICS Number Code 17.200.10 (Heat. Calorimetry)

DOI: 10.1520/E2781-11

ASTM International is a member of CrossRef.

ASTM E2781