ASTM E2071-00(2015)
Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data

Standard No.
ASTM E2071-00(2015)
Release Date
2000
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM E2071-21
Latest
ASTM E2071-21
Scope

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.

ASTM E2071-00(2015) Referenced Document

  • ASTM D2879 Standard Test Method for Vapor Pressure-Temperature Relationship and Initial Decomposition Temperature of Liquids by Isoteniscope
  • ASTM E1142 Standard Terminology Relating to Thermophysical Properties
  • ASTM E1194 Standard Test Method for Vapor Pressure
  • ASTM E1719 Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
  • ASTM E1782 Standard Test Method for Determining Vapor Pressure by Thermal Analysis

ASTM E2071-00(2015) history

  • 2021 ASTM E2071-21 Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
  • 2000 ASTM E2071-00(2015) Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
  • 2000 ASTM E2071-00(2010) Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
  • 2000 ASTM E2071-00(2005) Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
  • 2000 ASTM E2071-00 Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor  Pressure Data



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