ASTM E1782-03
Standard Test Method for Determining Vapor Pressure by Thermal Analysis

Standard No.

ASTM E1782-03

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E1782-08

Latest

ASTM E1782-22

Scope

Vapor pressure is a fundamental thermophysical property of a liquid. Vapor pressure data are useful in process design and control, in establishing environmental regulations for safe handling and transport, for estimation of volatile organic content (VOC), and in deriving hazard assessments. Vapor pressure and boiling temperature data are required for Material Safety Data Sheets (MSDS). The enthalpy of vaporization may also be estimated from the slope of the vapor pressure curve (See Practice E 2071).

1.1 This test method describes a procedure for the determination of the vapor pressure of pure liquids or melts from boiling point measurements made using differential thermal analysis (DTA) or differential scanning calorimetry (DSC) instrumentation operated at different applied pressures.

1.2 This test method may be used for the temperature range 273 to 773 K (0 to 500 176;C) and for pressures between 5 kPa to 2 MPa. These ranges may differ depending upon the instrumentation used and the thermal stability of materials tested. Because a range of applied pressures is required by this test method, the analyst is best served by use of instrumentation referred to as high pressure differential thermal instrumentation (HPDSC or HPDTA).

1.3 Computer or electronic-based instruments, techniques, or data treatment equivalent to this test method may also be used.

Note 18212;Users of this test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user of this test method to determine the necessary equivalency prior to use. Only the manual procedures are to be considered valid.

1.4 SI value units are the standard. The customary units given in parentheses are for information only.

1.5 There is no ISO standard equivalent to this test method.

1.6 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 E1782-03 Referenced Document

• ASTM E1142 Standard Terminology Relating to Thermophysical Properties
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E2071 Standard Practice for Calculating Heat of Vaporization or Sublimation from Vapor Pressure Data*， 2024-04-19 Update
• ASTM E473 Standard Terminology Relating to Thermal Analysis
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM E967 Standard Practice for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers

ASTM E1782-03 history

• 2022 ASTM E1782-22 Standard Test Method for Determining Vapor Pressure by Thermal Analysis
• 2014 ASTM E1782-14 Standard Test Method for Determining Vapor Pressure by Thermal Analysis
• 2008 ASTM E1782-08 Standard Test Method for Determining Vapor Pressure by Thermal Analysis
• 2003 ASTM E1782-03 Standard Test Method for Determining Vapor Pressure by Thermal Analysis
• 1998 ASTM E1782-98 Standard Test Method for Determining Vapor Pressure by Thermal Analysis