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ASTM E698-04

Historical Revision

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

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1.1 This method covers the determination of the overall kinetic parameters for exothermic reactions.

1.2 The kinetic parameters are obtained from differential scanning calorimetry (DSC) curves (see Section 3).

1.3 This technique is applicable to reactions whose behavior can be described by the Arrhenius equation and the general rate law.

1.4 Limitations—There are cases where this technique is not applicable. Limitations may be indicated by curves departing from a straight line (see 11.2) 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.

1.5 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number E698
Publication Date Nov. 1, 2004
Language en - English
Page Count 8
Revision Level 04
Supercedes
Committee E27.02
Publish Date Document Id Type View
Aug. 1, 2023 E0698-23 Revision
June 1, 2018 E0698-18 Revision
April 15, 2016 E0698-16 Revision
March 1, 2011 E0698-11 Revision
March 1, 2005 E0698-05 Revision
Nov. 1, 2004 E0698-04 Revision
April 10, 2001 E0698-99 Revision
April 10, 2001 E0698-01 Revision