ASTM-E698 › Historical Revision Information
Standard Test Method for Arrhenius Kinetic Constants for Thermally Unstable Materials
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This method covers the determination of the overall kinetic parameters for exothermic reactions using the Flynn/Wall/Ozawa method and differential scanning calorimetry.
1.2 This technique is applicable to reactions whose behavior can be described by the Arrhenius equation and the general rate law.
1.3 LimitationsThere are cases where this technique is not applicable. Limitations may be indicated by curves departing from a straight line (see ) or the isothermal aging test not closely agreeing with the results predicted by the calculated kinetic values. In particular, this method is not applicable to reactions that are partially inhibited. The technique may not work with reactions that include simultaneous or consecutive reaction steps. This method may not apply to materials that undergo phase transitions if the reaction rate is significant at the transition temperature.
1.4 SI units are the standard.
This standard may involve hazardous materials, operations, and equipment. 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.
Significance and Use
The Arrhenius parameters combined with the general rate law and the reaction enthalpy can be used for the determination of thermal explosion hazards (1).3
Keywords
Arrhenius kinetic parameters; differential scanning calorimetry; hazard potential; kinetics; thermal analysis; thermal hazad; thermal stability; ICS Number Code 19.040 (Environmental testing)
To find similar documents by ASTM Volume:
14.01 (Healthcare Informatics)
To find similar documents by classification:
19.040 (Environmental testing Including testing equipment)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-E698-05
Revision Level
2005 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
March 1, 2005
Document Type
Test Method
Page Count
8 pages
Committee Number
E27.02