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ASTM E2040-03

Historical Revision

Standard Test Method for Mass Scale Calibration of Thermogravimetric Analyzers

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1.1 This test method covers the calibration or performance confirmation of the mass (or weight) scale of thermogravimetric analyzers and is applicable to commercial and custom-built apparatus.

1.2 Electronic instrumentation or automated data analysis and reduction systems or treatments equivalent to this test method may be used.

1.3 The values stated in SI units are to be regarded as the 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 and health practices and to determine the applicability of regulatory limitations prior to use.


This test method calibrates or demonstrates conformity of thermogravimetric apparatus at ambient conditions. Most thermogravimetry analysis experiments are carried out under temperature ramp conditions or at isothermal temperatures distant from ambient conditions. This test method does not address the temperature effects on mass calibration.

In most thermogravimetry experiments, the mass change is reported as weight percent in which the observed mass at any time during the course of the experiment is divided by the original mass of the test specimen. This method of reporting results assumes that the mass scale of the apparatus is linear with increasing mass. In such cases, it may be necessary only to confirm the performance of the instrument by comparison to a suitable reference.

When the actual mass of the test specimen is recorded, the use of a calibration factor to correct the calibration of the apparatus may be required, on rare occasions.

SDO ASTM: ASTM International
Document Number E2040
Publication Date Sept. 10, 2003
Language en - English
Page Count 3
Revision Level 03
Supercedes
Committee E37.01
Publish Date Document Id Type View
Dec. 1, 2019 E2040-19 Revision
Sept. 1, 2008 E2040-08 Revision
Sept. 10, 2003 E2040-03 Revision
Sept. 10, 1999 E2040-99 Revision
March 15, 2014 E2040-08R14 Reaffirmation