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ASTM E2744-21

Current Revision

Standard Test Method for Pressure Calibration of Thermal Analyzers

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1.1 This test method describes the calibration or performance confirmation of the electronic pressure signals from thermal analysis apparatus.

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

1.3 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.

1.4 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.


5.1 Most thermal analysis experiments are conducted under ambient pressure conditions using isothermal or temperature time rate of change conditions where time or temperature is the independent parameter. Some experiments, however, are conducted under reduced or elevated pressure conditions where pressure is an independent experimental parameter (Test Method E537). Oxidation Induction Times (Test Methods D5483, D5885, D6186, and E1858), Oxidation Onset Temperature (Test Method E2009), and the Vapor Pressure (Test Method E1782) are other examples of experiments conducted under elevated or reduced pressure (vacuum) conditions. Since in these cases pressure is an independent variable, the measurement system for this parameter shall be calibrated to ensure interlaboratory reproducibility.

5.2 The dependence of experimental results on pressure is usually logarithmic rather than linear.

SDO ASTM: ASTM International
Document Number E2744
Publication Date Oct. 1, 2021
Language en - English
Page Count 4
Revision Level 21
Supercedes
Committee E37.10
Publish Date Document Id Type View
Oct. 1, 2021 E2744-21 Revision
Feb. 15, 2016 E2744-16E01 Revision
Feb. 15, 2016 E2744-16 Revision
March 15, 2010 E2744-10 Revision
March 1, 2015 E2744-10R15 Reaffirmation