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Significance and Use
5.1 Thermogravimetry provides a rapid method for determining the temperature-decomposition profile of a material.
5.2 This test method can be used for estimating lifetimes of materials, using Test Method provided that a relationship has been established between the thermal endurance test results and actual lifetime tests.
1.1 This test method describes the determination of the kinetic parameters, Arrhenius activation energy, and pre-exponential factor by thermogravimetry, based on the assumption that the decomposition obeys first-order kinetics using the Ozawa/Flynn/Wall isoconversional method (. , )
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 1300 K (nominally 100 to 1000°C). The temperature range may be extended depending on the instrumentation used.
1.4 This test method is similar to ISO 11358-2 but differs in its mathematical treatment.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
ICS Number Code 71.040.40 (Chemical analysis)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E1641-16, Standard Test Method for Decomposition Kinetics by Thermogravimetry Using the Ozawa/Flynn/Wall Method, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top