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ASTM E1719-24

(Test Method)

Standard Test Method for Vapor Pressure of Liquids by Ebulliometry

Standard Test Method for Vapor Pressure of Liquids by Ebulliometry

SIGNIFICANCE AND USE
5.1 Vapor pressure is a fundamental thermodynamic property of a liquid. Vapor pressure and boiling temperature data are required for safety data sheets (SDS), the estimation of volatile organic compounds (VOC), and other needs related to product safety. Vapor pressures are important for prediction of the transport of a chemical in the environment; see Test Method E1194.
SCOPE
1.1 This test method describes procedures for determination of the vapor pressure of liquids by ebulliometry (boiling point measurements). It applies to pure liquids and azeotropes with an atmospheric boiling point between 285 K and 575 K, which 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 kPa to 100 kPa (7.5 torr to 760 torr).  
1.2 SI units are the standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
29-Feb-2024
Technical Committee
E37 - Thermal Measurements
Drafting Committee
E37.01 - Calorimetry and Mass Loss
Current Stage
Ref Project

Relations

Replaces
ASTM E1719-12(2018) - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry (Withdrawn 2023)
Effective Date
01-Mar-2024
Referred By
ASTM E2071-21 - Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
Effective Date
01-Mar-2024

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ASTM E1719-24 - Standard Test Method for Vapor Pressure of Liquids by EbulliometryASTM E1719-24 - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
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ASTM E1719-24 - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E1719 − 24
Standard Test Method for
1
Vapor Pressure of Liquids by Ebulliometry
This standard is issued under the fixed designation E1719; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2879 Test Method for Vapor Pressure-Temperature Rela-
tionship and Initial Decomposition Temperature of Liq-
1.1 This test method describes procedures for determination
uids by Isoteniscope
of the vapor pressure of liquids by ebulliometry (boiling point
E1 Specification for ASTM Liquid-in-Glass Thermometers
measurements). It applies to pure liquids and azeotropes with
E177 Practice for Use of the Terms Precision and Bias in
an atmospheric boiling point between 285 K and 575 K, which
ASTM Test Methods
can be condensed completely and returned to the ebulliometer
E691 Practice for Conducting an Interlaboratory Study to
boiler, that is, all materials must be condensable at total reflux.
Determine the Precision of a Test Method
Liquid mixtures may be studied if they do not contain
E1142 Terminology Relating to Thermophysical Properties
non-condensable components. Liquid mixtures that contain
E1194 Test Method for Vapor Pressure
trace amounts of volatile but completely condensable compo-
E1970 Practice for Statistical Treatment of Thermoanalytical
nents may also be studied, but they will produce vapor pressure
Data
data of greater uncertainty. Boiling point temperatures are
measured at applied pressures of 1.0 kPa to 100 kPa (7.5 torr to
3. Terminology
760 torr).
3.1 Definitions:
1.2 SI units are the standard. No other units of measurement
3.1.1 The following terms apply to this test method and can
are included in this standard.
be found in Terminology E1142; boiling temperature and
vapor pressure.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1.2 For definitions of other terms used in this test method,
refer to Terminology E1142.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 3.2 Definitions of Terms Specific to This Standard:
3.2.1 ebulliometer—a one-stage, total-reflux boiler designed
mine the applicability of regulatory limitations prior to use.
For specific hazard statements, see Section 8. to minimize superheating of the boiling liquid.
1.4 This international standard was developed in accor-
3.2.2 manostat—a device for maintaining constant vacuum
dance with internationally recognized principles on standard-
or pressure.
ization established in the Decision on Principles for the
3.2.3 superheating—act of heating a liquid above the equi-
Development of International Standards, Guides and Recom-
librium boiling temperature for a particular applied pressure.
mendations issued by the World Trade Organization Technical
3.3 Symbols:
Barriers to Trade (TBT) Committee.
A, B, C = Antoine vapor pressure equation constants (log ,
10
2. Referenced Documents
kPa, K) for the Antoine vapor pressure equation:
2
2.1 ASTM Standards:
log P = A − B /(T + C),
10
D1193 Specification for Reagent Water
P = vapor pressure, kPa, and
T = absolute temperature, K.
4. Summary of Test Method
1
This test method is under the jurisdiction of ASTM Committee E37 on Thermal
Measurements and is the direct responsibility of Subcommittee E37.01 on Calo-
4.1 A specimen is charged to the ebulliometer boiler. The
rimetry and Mass Loss.
ebulliometer is connected to a manostat, and coolant is
Current edition approved March 1, 2024. Published March 2024. Originally
circulated through the ebulliometer condenser. The manostat is
approved in 1995. Last previous edition approved in 2018 as E1719 – 12 (2018)
set at a low pressure, and the specimen is heated to the boiling
which was withdrawn in April 2023 and reinstated in March 2024. DOI: 10.1520/
E1719-24.
temperature. The boiling temperature and manostat pressure
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
are recorded upon reaching a steady-state, and the manostat
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
pressure is raised to a higher value. A suitable number (usually
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. five or more) of boiling temperature points are recorded at
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United State
...

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