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ASTM E2071-00(2015)
Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
Automaticky preložený názov:
Štandardná prax pre výpočet výparného tepla alebo sublimácie z tlaku pár dát
NORMA vydaná dňa 1.5.2015
Informácie o norme:
Označenie normy: ASTM E2071-00(2015)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2015
Kód tovaru: NS-588527
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM E2071-00(2015) :
Keywords:
Antoine equation, Clausius-Clapeyron equation, enthalpy of sublimation, enthalpy of vaporization, Haggenmacher equation, heat of sublimation, heat of vaporization, vapor pressure,, ICS Number Code 27.040 (Gas and steam turbines. Steam engines)
Doplňujúce informácie
| 1. Scope | ||||||||||
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1.1 This practice describes the calculation of the heat of vaporization of a liquid or the heat of sublimation of a solid from measured vapor pressure data. It is applicable to pure liquids, azeotropes, pure solids, and homogenous solid solutions over the temperature range for which the vapor pressure equation fitted to the measured data is applicable. Note 1: This practice is generally not applicable to liquid
mixtures. For a pure liquid or azeotrope, composition does not
change upon vaporization so that the integral heat of vaporization
is identical to the differential heat of vaporization.
Non-azeotropic liquid mixtures change composition upon vaporizing.
Heat of vaporization data computed from this practice for a liquid
mixture are valid only as an approximation to the mixture
differential heat of vaporization; it is not a valid approximation
to the mixture integral heat of vaporization.
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 practice. 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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