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ASTM E1719-97

(Test Method)

Standard Test Method for Vapor Pressure of Liquids by Ebulliometry

Standard Test Method for Vapor Pressure of Liquids by Ebulliometry

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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.

General Information

Status
Historical
Publication Date
09-Mar-1997
ICS
17.100 - Measurement of force, weight and pressure
Technical Committee
E37 - Thermal Measurements
Drafting Committee
E37.01 - Calorimetry and Mass Loss
Current Stage
Ref Project

Relations

Replaced By
ASTM E1719-05 - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
Effective Date
01-Mar-2005
Referred By
ASTM E2071-21 - Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data
Effective Date
10-Mar-1997

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ASTM E1719-97 - Standard Test Method for Vapor Pressure of Liquids by EbulliometryASTM E1719-97 - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
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ASTM E1719-97 - Standard Test Method for Vapor Pressure of Liquids by Ebulliometry
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E1719–97
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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
6
1. Scope E1194 Test Method for Vapor Pressure
1.1 Thistestmethodcoversproceduresfordeterminationof
3. Terminology
the vapor pressure of liquids by ebulliometry (boiling point
3.1 Definitions:
measurements). It is applicable to pure liquids and azeotropes
3.1.1 The following terms are applicable to this test method
thathaveanatmosphericboilingpointbetween285and575K
and can be found in Terminology E1142; boiling temperature
and that can be condensed completely and returned to the
and vapor pressure.
ebulliometer boiler, that is, all materials must be condensable
3.1.2 For definitions of other terms used in this test method
at total reflux. Liquid mixtures may be studied if they do not
refer to Terminology E1142.
contain non-condensable components. Liquid mixtures that
3.2 Definitions of Terms Specific to This Standard:
contain trace amounts of volatile but completely condensable
3.2.1 ebulliometer—a one-stage, total-reflux boiler de-
components may also be studied, but they will produce vapor
signed to minimize superheating of the boiling liquid.
pressuredataofgreateruncertainty.Boilingpointtemperatures
3.2.2 superheating—the act of heating a liquid above the
are measured at applied pressures of 1.0 to 101.33 kPa (7.5 to
equilibrium boiling temperature for a particular applied pres-
760.0 torr).
sure.
1.2 The values stated in SI units are to be regarded as the
3.3 Symbols:Symbols:
standard. The values given in parentheses are for information
A,B,C =Antoinevaporpressureequationconstants(log ,
10
only.
kPa, K) for the Antoine vapor pressure equation: log P
10
1.3 This standard does not purport to address all of the
=A−B/(T+C).
safety concerns, if any, associated with its use. It is the
P =vapor pressure, kPa.
responsibility of the user of this standard to establish appro-
T =Kelvin temperature, K.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For specific hazard
4. Summary of Test Method
statements, see Section 8.
4.1 A specimen is charged to the ebulliometer boiler. The
ebulliometer is connected to a manostat, and coolant is
2. Referenced Documents
circulatedthroughtheebulliometercondenser.Themanostatis
2.1 ASTM Standards:
2 set at a low pressure, and the specimen is heated to the boiling
D1193 Specification for Reagent Water
temperature. The boiling temperature and manostat pressure
D2879 Test Method for Vapor Pressure-Temperature Rela-
are recorded upon reaching a steady-state, and the manostat
tionshipandInitialDecompositionTemperatureofLiquids
3 pressure is raised to a higher value.Asuitable number (usually
by Isoteniscope
4 five or more) of boiling temperature points are recorded at
E1 Specification for ASTM Thermometers
successively higher controlled pressures. The pressure-
E1142 Terminology Relating to Thermophysical Proper-
5 temperature data are fitted to the Antoine vapor pressure
ties
equation. Vapor pressure values required for specific reports
are then computed from the derived equation.
4.2 The capability of the entire apparatus (ebulliometer,
1
thermometer, manostat, etc.) is checked periodically by the
ThistestmethodisunderthejurisdictionofASTMCommitteeE37onThermal
Measurements and is the direct responsibility of Subcommittee E37.01 on Test
procedure described in Annex A1. This procedure consists of
Methods and Recommended Practices.
measuring the boiling temperature data for a pure reference
CurrenteditionapprovedMarch10,1997.PublishedNovember1997.Originally
substance such as water and comparing the derived vapor
published as E1719–95. Last previous edition E1719–95.
2
Annual Book of ASTM Standards, Vol 11.01. pressure data to the known reference values.
3
Annual Book of ASTM Standards, Vol 05.02.
4
Annual Book of ASTM Standards, Vol 14.03.
5 6
Annual Book of ASTM Standards, Vol 14.02. Annual Book of ASTM Standards, Vol 11.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E1719–97
5. Significance and Use
5.1 Vapor pressure is a fundamental thermodynamic prop-
erty of a liquid. Vapor pressure and boiling temperature data
are required for material safety data sheets (MSDS), the
estimation of volatile organic compounds (VOC), and other
needs related to product safety. Vapor pressures are important
for prediction of t
...

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SCOPE
1.1 This guide covers the use of oil spill dispersants to assist in the control of oil spills. The guide is written with the goal of minimizing the environmental impacts of oil spills; this goal is the basis on which the recommendations are made. Aesthetic and socioeconomic factors are not considered, although these and other factors are often important in spill response.  
1.2 Spill responders have available several means to control or clean up spilled oil. Chemical dispersants should be given equal consideration with other spill countermeasures.  
1.3 This is a general guide only. Oil, as used in this guide, includes crude oils and refined petroleum products. Differences between individual dispersants or between different oil products are not considered. The dispersibility of the oil with the chosen dispersant should be evaluated.  
1.4 The guide is organized by habitat type, for example, small ponds and lakes, rivers and streams, and land. It considers the use of dispersants primarily to protect habitats from impact (or to minimize impacts).  
1.5 This guide applies only to freshwater and other inland environments. It does not consider the direct application of dispersants to subsurface waters.  
1.6 In making dispersant use decisions, appropriate government authorities should be consulted as required by law.  
1.7 This guide does not address getting regulatory approval.  
1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.9 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.  
1.10 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.

  • Guide
    3 pages
    English language
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  • Guide
    3 pages
    English language
    sale 15% off