ASTM-E1782:2003 Edition

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

Published By	Publication Date	Number of Pages
ASTM	2003	6

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Categories: 17.200.10 - Heat. Calorimetry, ASTM

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Description

ASTM E1782-03

Historical Standard: Standard Test Method for Determining Vapor Pressure by Thermal Analysis

ASTM E1782

Scope

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 °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 1—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.

Keywords

Antoine equation; boiling pressure; boiling temperature; differential scanning calorimetry (DSC); differential thermal analysis (DTA); vapor pressure

ICS Code

ICS Number Code 17.200.10 (Heat. Calorimetry)

DOI: 10.1520/E1782-03

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Interferences Apparatus FIG. 1 FIG. 2
3	Precautions Sampling Calibration Procedure
4	Calculation Report Precision and Bias FIG. 3
5	Keywords X1. VAPOR PRESSURE OF WATER 5 kPa TO 2 MPa TABLE X1.1
6	REFERENCES

Additional information

Standard Title	E1782-03 Standard Test Method for Determining Vapor Pressure by Thermal Analysis
Published Code	ASTM
Publication Date	2003
Pages Count	6
ICS Codes	17.200.10 - Heat. Calorimetry