ASTM E2744-21
(Test Method)Standard Test Method for Pressure Calibration of Thermal Analyzers
Standard Test Method for Pressure Calibration of Thermal Analyzers
SIGNIFICANCE AND USE
5.1 Most thermal analysis experiments are conducted under ambient pressure conditions using isothermal or temperature time rate of change conditions where time or temperature is the independent parameter. Some experiments, however, are conducted under reduced or elevated pressure conditions where pressure is an independent experimental parameter (Test Method E537). Oxidation Induction Times (Test Methods D5483, D5885, D6186, and E1858), Oxidation Onset Temperature (Test Method E2009), and the Vapor Pressure (Test Method E1782) are other examples of experiments conducted under elevated or reduced pressure (vacuum) conditions. Since in these cases pressure is an independent variable, the measurement system for this parameter shall be calibrated to ensure interlaboratory reproducibility.
5.2 The dependence of experimental results on pressure is usually logarithmic rather than linear.
SCOPE
1.1 This test method describes the calibration or performance confirmation of the electronic pressure signals from thermal analysis apparatus.
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 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.
1.4 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.
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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: E2744 − 21
Standard Test Method for
1
Pressure Calibration of Thermal Analyzers
This standard is issued under the fixed designation E2744; 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* olefin Geosynthetics by High-Pressure Differential Scan-
ning Calorimetry
1.1 This test method describes the calibration or perfor-
E473 Terminology Relating to Thermal Analysis and Rhe-
mance confirmation of the electronic pressure signals from
ology
thermal analysis apparatus.
E537 Test Method for Thermal Stability of Chemicals by
1.2 The values stated in SI units are to be regarded as
Differential Scanning Calorimetry
standard. No other units of measurement are included in this
E1142 Terminology Relating to Thermophysical Properties
standard.
E1782 Test Method for Determining Vapor Pressure by
1.3 This standard does not purport to address all of the
Thermal Analysis
safety concerns, if any, associated with its use. It is the E1858 Test Methods for Determining Oxidation Induction
responsibility of the user of this standard to establish appro-
Time of Hydrocarbons by Differential Scanning Calorim-
priate safety, health, and environmental practices and deter- etry
mine the applicability of regulatory limitations prior to use.
E2009 Test Methods for Oxidation Onset Temperature of
1.4 This international standard was developed in accor- Hydrocarbons by Differential Scanning Calorimetry
dance with internationally recognized principles on standard-
E2161 Terminology Relating to Performance Validation in
ization established in the Decision on Principles for the Thermal Analysis and Rheology
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3. Terminology
Barriers to Trade (TBT) Committee.
3.1 Definitions:
3.1.1 The technical terms used in this test method are
2. Referenced Documents
defined in Terminologies E473, E1142, and E2161, including
2
2.1 ASTM Standards:
calibration, Celsius, differential scanning calorimetry, high
D5483 Test Method for Oxidation Induction Time of Lubri-
pressure, linearity, oxidative induction time, thermal analysis,
catingGreasesbyPressureDifferentialScanningCalorim-
and vapor pressure.
etry
3.2 Definitions of Terms Specific to This Standard:
D6186 Test Method for Oxidation Induction Time of Lubri-
3.2.1 absolute pressure, n—pressure measured relative to
cating Oils by Pressure Differential Scanning Calorimetry
zero pressure corresponding to empty space.
(PDSC)
3.2.1.1 Discussion—Absolute pressure is atmospheric pres-
D5720 Practice for Static Calibration of Electronic
sure plus gage pressure.
Transducer-Based Pressure Measurement Systems for
3
Geotechnical Purposes (Withdrawn 2018)
3.2.2 atmospheric pressure, n—the pressure due to the
D5885 Test Method for Oxidative Induction Time of Poly-
weight of the atmosphere.
3.2.2.1 Discussion—Atmospheric pressure varies with el-
evation above sea level, acceleration due to gravity and
1 weather conditions. Standard atmospheric pressure is
ThistestmethodisunderthejurisdictionofASTMCommitteeE37onThermal
Measurements and is the direct responsibility of Subcommittee E37.10 on
101.325 kPa.
Fundamental, Statistical and Mechanical Properties.
3.2.3 barometer, n—an instrument for measuring atmo-
Current edition approved Oct. 1, 2021. Published November 2021. Originally
ɛ1
approved in 2010. Last previous edition approved in 2016 as E2744 – 16 .
spheric pressure.
DOI:101520/E2744-21.
2 3.2.4 gage pressure, n—pressure measured relative to atmo-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
spheric pressure.
Standards volume information, refer to the standard’s Document Summary page on
3.2.4.1 Discussion—Zero gage pressure is equal to atmo-
the ASTM website.
3
spheric pressure. Gage pressure is the difference between
The last approved version of this historical standard is referenced on
www.astm.org. absolute pressure and atmospheric pressure.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2744 − 21
3.2.5 pressure, n—the force exerted to a surface per unit 6.4 Barometer capable of measuring atmospheric pressure
area. readable to 60.01
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: E2744 − 16 E2744 − 21
Standard Test Method for
1
Pressure Calibration of Thermal Analyzers
This standard is issued under the fixed designation E2744; 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
ε NOTE—Research report information was editorially added to 13.1 in January 2018.
1. Scope*
1.1 This test method describes the calibration or performance confirmation of the electronic pressure signals from thermal analysis
apparatus.
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 test method.
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.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D5483 Test Method for Oxidation Induction Time of Lubricating Greases by Pressure Differential Scanning Calorimetry
D6186 Test Method for Oxidation Induction Time of Lubricating Oils by Pressure Differential Scanning Calorimetry (PDSC)
D5720 Practice for Static Calibration of Electronic Transducer-Based Pressure Measurement Systems for Geotechnical Purposes
3
(Withdrawn 2018)
D5885 Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential Scanning
Calorimetry
E473 Terminology Relating to Thermal Analysis and Rheology
E537 Test Method for Thermal Stability of Chemicals by Differential Scanning Calorimetry
E1142 Terminology Relating to Thermophysical Properties
E1782 Test Method for Determining Vapor Pressure by Thermal Analysis
E1858 Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
E2009 Test Methods for Oxidation Onset Temperature of Hydrocarbons by Differential Scanning Calorimetry
1
This test method is under the jurisdiction of ASTM Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E37.10 on Fundamental,
Statistical and Mechanical Properties.
Current edition approved Feb. 15, 2016Oct. 1, 2021. Published March 2016November 2021. Originally approved in 2010. Last previous edition approved in 20152016
ɛ1
as E2744 – 1016 (2015). DOI:101520/E2744-16E01. DOI:101520/E2744-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2744 − 21
E2161 Terminology Relating to Performance Validation in Thermal Analysis and Rheology
3. Terminology
3.1 Definitions:
3.1.1 The technical terms used in this test method are defined in Terminologies E473, E1142, and E2161, including calibration,
Celsius, differential scanning calorimetry, high pressure, linearity, oxidative induction time, thermal analysis, and vapor pressure.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 absolute pressure, n—pressure measured relative to zero pressure corresponding to empty space.
3.2.1.1 Discussion—
Absolute pressure is atmospheric pressure plus gage pressure.
3.2.2 atmospheric pressure, n—the pressure due to the weight of the atmosphere.
3.2.2.1 Discussion—
Atmospheric pressure varies with elevation above sea level, acceleration due to gravity and weather conditions. Standard
atmospheric pressure is 101.325 kPa.
3.2.3 barometer, n—an instrument for measuring atmospheric pressure.
3.2.4 gage pressure, n—pressure measured rel
...
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