ASTM-E1641:2007 Edition

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E1641-07 Standard Test Method for Decomposition Kinetics by Thermogravimetry

Published By	Publication Date	Number of Pages
ASTM	2007	6

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Categories: 71.040.40 - Chemical analysis, ASTM

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Description

ASTM E1641-07

Historical Standard: Standard Test Method for Decomposition Kinetics by Thermogravimetry

ASTM E1641

Scope

1.1 This test method describes the determination of the kinetic parameters, Arrhenius activation energy, and preexponential factor by thermogravimetry, based on the assumption that the decomposition obeys first-order kinetics.

1.2 This test method is generally applicable to materials with well-defined decomposition profiles, namely, a smooth, continuous mass change with a single maximum rate.

1.3 This test method is normally applicable to decomposition occurring in the range from 400 to 1300K (100 to 1000 °C). The temperature range may be extended depending on the instrumentation used.

1.4 Computer or electronic-based instruments, techniques, or data treatment equivalent to this test method may also be used.

Note 1—Users of this test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user of this test method to determine the necessary equivalency prior to use.

1.5 SI units are the standard.

1.6 This method is similar to ISO 11358-2 but differs in its mathematical treatment.

1.7 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.

Keywords

Arrhenius activation energy; Arrhenius pre-exponential factor; kinetic parameters; thermal decomposition; thermo gravimetric analysis

ICS Code

ICS Number Code 71.040.40 (Chemical analysis)

DOI: 10.1520/E1641-07

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use Apparatus
2	Precautions Sampling Procedure
3	Calculation FIG. 1 FIG. 2
4	TABLE 1
5	Report Precision and Bias Keywords
6	X1. ESTIMATING THE UNCERTAINTY IN THE ACTIVATION ENERGY AND PRE-EXPONENTIAL FACTOR X1.1 X1.2 X1.3 REFERENCES

Additional information

Standard Title	E1641-07 Standard Test Method for Decomposition Kinetics by Thermogravimetry
Published Code	ASTM
Publication Date	2007
Pages Count	6
ICS Codes	71.040.40 - Chemical analysis