ASTM International - ASTM E2958-19

Standard Test Methods for Kinetic Parameters by Factor Jump/Modulated Thermogravimetry

active
Buy Now
Organization: ASTM International
Publication Date: 1 September 2019
Status: active
Page Count: 6
ICS Code (Chemical analysis): 71.040.40
significance And Use:

5.1 The activation energy may be used to calculate thermal endurance and an estimate of the lifetime of the material at specified temperatures using Test Method E1877.

5.2 The kinetic... View More

scope:

1.1 These test methods describe the model-free determination of Arrhenius activation energy by thermogravimetry using the factor jump (1)2 (Test Method A) or modulated thermogravimetry (2) (Test Methods B and C) techniques. With the assumption of a first-order kinetic model, the pre-exponential factor is additionally determined.

1.2 These test methods are applicable to materials with well-defined decomposition profiles, namely, a smooth, continuous mass change.

1.3 These test methods are applicable to decomposition occurring in the range from 400 K to 1200 K (nominally 100 °C to 900 °C). The temperature range may be extended depending on the instrumentation and material used.

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

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM E2958-19
September 1, 2019
Standard Test Methods for Kinetic Parameters by Factor Jump/Modulated Thermogravimetry
1.1 These test methods describe the model-free determination of Arrhenius activation energy by thermogravimetry using the factor jump (1)2 (Test Method A) or modulated thermogravimetry (2) (Test...
April 1, 2014
Standard Test Methods for Kinetic Parameters by Factor Jump/Modulated Thermogravimetry
1.1 These test methods describe the model-free determination of Arrhenius activation energy by thermogravimetry using the factor jump (1)2 (Method A) or modulated thermogravimetry (2) (Method B)...
Advertisement