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ASTM E2744-10
Standard Test Method for Pressure Calibration of Thermal Analyzers
4 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
17.200.20 Temperature-measuring. Including thermostats / Приборы для измерения температуры. Включая термостаты
Сборник (ASTM):
14.05 Statistical Methods; Hazard Potential of Chemicals; Thermal Measurements; Manufacture of Pharmaceutical and Biopharmaceutical Products / Статистические методы; Потенциальная опасность химических веществ; Измерения теплопроводности; Производство фармацевтических изделий
Тематика:
Thermal Analysis
Описание
Значение и использование

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.

Область применения

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.

Ключевые слова:
absolute pressure; atmospheric pressure; calibration; gage pressure; pressure; thermal analysis