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Standard Test Method for Pressure Calibration of Thermal Analyzers
Automatische name übersetzung:
Standard Test Method for Druckkalibrierung des Thermal Analyzers
NORM herausgegeben am 15.3.2010
Bezeichnung normen: ASTM E2744-10
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 15.3.2010
SKU: NS-45963
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
absolute pressure, atmospheric pressure, calibration, gage pressure, pressure, thermal analysis, ICS Number Code 17.200.20 (Temperature-measuring instruments)
Significance and Use | ||||||||||||||||||||||
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. The dependence of experimental results on pressure is usually logarithmic rather than linear. |
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1. Scope | ||||||||||||||||||||||
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 There is no ISO standard equivalent to this test method. 1.4 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. |
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2. Referenced Documents | ||||||||||||||||||||||
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