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ASTM E1719-97
Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
7 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
17.100 Measurement. Including measuring and weighing instruments / Измерения силы, веса и давления. Включая измерительные приборы
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
Область применения

1.1 This test method covers procedures for determination of the vapor pressure of liquids by ebulliometry (boiling point measurements). It is applicable to pure liquids and azeotropes that have an atmospheric boiling point between 285 and 575 K and that can be condensed completely and returned to the ebulliometer boiler, that is, all materials must be condensable at total reflux. Liquid mixtures may be studied if they do not contain non-condensable components. Liquid mixtures that contain trace amounts of volatile but completely condensable components may also be studied, but they will produce vapor pressure data of greater uncertainty. Boiling point temperatures are measured at applied pressures of 1.0 to 101.33 kPa (7.5 to 760.0 torr).

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.

Ключевые слова:
Vapor Pressure; Liquids; Ebulliometry