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Significance and Use
5.1 Differing temperature rates-of-change may be required for different measurements (for example, Test Method ). Temperature calibration changes as a function of temperature rate-of-change. The use of the known thermal lag of an apparatus may be used to adjust the temperature calibration of the apparatus obtained at one temperature rate-of-change with that at another required for a given applications. This adjustment procedure for temperature calibration is described in .
5.2 This test method may be used in research, quality assurance, and specification acceptance.
1.1 This test method addresses the dependence of temperature calibration on the temperature rate-of-change. This test method describes the determination of the thermal lag of thermal analysis apparatus and its application to the modification of the temperature calibration for that apparatus obtained at alternative linear temperature rates-of-change.
1.2 This test method is applicable, but not limited to, the temperature calibration of differential thermal analyzers (DTAs), differential scanning calorimeters (DSCs), thermogravimetric analyzers (TGAs), thermomechanical analyzers (TMAs), and dynamic mechanical analyzers (DMAs).
1.3 This test method is applicable only to apparatus demonstrating a linear relationship between indicated temperature and temperature rate-of-change.
1.4 The values stated in SI units are to be regarded as the 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E473 Terminology Relating to Thermal Analysis and Rheology
E698 Test Method for Kinetic Parameters for Thermally Unstable Materials Using Differential Scanning Calorimetry and the Flynn/Wall/Ozawa Method
E967 Test Method for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers
E1142 Terminology Relating to Thermophysical Properties
E1363 Test Method for Temperature Calibration of Thermomechanical Analyzers
E1582 Test Method for Temperature Calibration of Thermogravimetric Analyzers
E1867 Test Methods for Temperature Calibration of Dynamic Mechanical Analyzers
E1970 Practice for Statistical Treatment of Thermoanalytical Data
E2069 Test Method for Temperature Calibration on Cooling of Differential Scanning Calorimeters
ICS Number Code 17.200.20 (Temperature-measuring instruments)
UNSPSC Code 11101601(Iron ore)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E3142-18a, Standard Test Method for Thermal Lag of Thermal Analysis Apparatus, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top