Terminology Relating to Thermometry and Hydrometry

SCOPE
1.1 This terminology is a compilation of definitions of terms used by ASTM Committee E20 on Temperature Measurement.  
1.2 Terms with definitions generally applicable to the fields of thermometry and hydrometry are listed in 3.1.  
1.3 Terms with definitions applicable only to the indicated standards in which they appear are listed in 3.2.  
1.4 Information about the International Temperature Scale of 1990 is given in Appendix X1.  
1.5 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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Publication Date
30-Nov-2023
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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: E344 − 23
Terminology Relating to
1
Thermometry and Hydrometry
This standard is issued under the fixed designation E344; 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 E574 Specification for Duplex, Base Metal Thermocouple
Wire With Glass Fiber or Silica Fiber Insulation
1.1 This terminology is a compilation of definitions of terms
E585/E585M Specification for Compacted Mineral-
used by ASTM Committee E20 on Temperature Measurement.
Insulated, Metal-Sheathed, Base Metal Thermocouple
1.2 Terms with definitions generally applicable to the fields
Cable
of thermometry and hydrometry are listed in 3.1.
E601 Guide for Measuring Electromotive Force (EMF) Sta-
1.3 Terms with definitions applicable only to the indicated bility of Base-Metal Thermoelement Materials With Time
in Air
standards in which they appear are listed in 3.2.
E608/E608M Specification for Mineral-Insulated, Metal-
1.4 Information about the International Temperature Scale
Sheathed Base Metal Thermocouples
of 1990 is given in Appendix X1.
E644 Test Methods for Testing Industrial Resistance Ther-
1.5 This international standard was developed in accor-
mometers
dance with internationally recognized principles on standard-
E667 Specification for Mercury-in-Glass, Maximum Self-
ization established in the Decision on Principles for the 3
Registering Clinical Thermometers (Withdrawn 2022)
Development of International Standards, Guides and Recom-
E696 Specification for Tungsten-Rhenium Alloy Thermo-
mendations issued by the World Trade Organization Technical
couple Wire
Barriers to Trade (TBT) Committee.
E710 Test Method for Comparing EMF Stabilities of Base-
Metal Thermoelements in Air Using Dual, Simultaneous,
2. Referenced Documents
3
Thermal-EMF Indicators (Withdrawn 2006)
2
2.1 ASTM Standards:
E780 Test Method for Measuring the Insulation Resistance
E1 Specification for ASTM Liquid-in-Glass Thermometers
of Mineral-Insulated, Metal-Sheathed Thermocouples and
E77 Test Method for Inspection and Verification of Ther-
Mineral-Insulated, Metal-Sheathed Cable at Room Tem-
mometers
perature
E100 Specification for ASTM Hydrometers
E825 Specification for Phase Change-Type Disposable Fe-
E126 Test Method for Inspection, Calibration, and Verifica-
ver Thermometer for Intermittent Determination of Hu-
tion of ASTM Hydrometers
man Temperature
E207 Test Method for Thermal EMF Test of Single Thermo-
E839 Test Methods for Sheathed Thermocouples and
element Materials by Comparison With Reference Ther-
Sheathed Thermocouple Cable
moelement of Similar EMF-Temperature Properties
E879 Specification for Thermistor Sensors for General Pur-
E220 Test Method for Calibration of Thermocouples By
pose and Laboratory Temperature Measurements
Comparison Techniques
E1061 Specification for Direct-Reading Liquid Crystal Fore-
E230/E230M Specification for Temperature-Electromotive
head Thermometers
Force (emf) Tables for Standardized Thermocouples
E1104 Specification for Clinical Thermometer Probe Covers
E452 Test Method for Calibration of Refractory Metal Ther-
and Sheaths
mocouples Using a Radiation Thermometer
E1112 Specification for Electronic Thermometer for Inter-
mittent Determination of Patient Temperature
E1129/E1129M Specification for Thermocouple Connectors
1
This terminology is under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and is the direct responsibility of Subcommittee E20.91 E1137/E1137M Specification for Industrial Platinum Resis-
on Editorial and Terminology.
tance Thermometers
Current edition approved Dec. 1, 2023. Published December 2023. Originally
E1159 Specification for Thermocouple Materials, Platinum-
approved in 1968. Last previous edition approved in 2020 as E344 – 20. DOI:
Rhodium Alloys, and Platinum
10.1520/E0344-23.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E344 − 23
E1256 Test Methods for Radiation Thermometers (Single NIST Monograph 175 Temperature-Electromotive Force
Waveband Type) Reference Functions and
...

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.
Designation: E344 − 20 E344 − 23
Terminology Relating to
1
Thermometry and Hydrometry
This standard is issued under the fixed designation E344; 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
1.1 This terminology is a compilation of definitions of terms used by ASTM Committee E20 on Temperature Measurement.
1.2 Terms with definitions generally applicable to the fields of thermometry and hydrometry are listed in 3.1.
1.3 Terms with definitions applicable only to the indicated standards in which they appear are listed in 3.2.
1.4 Information about the International Temperature Scale of 1990 is given in Appendix X1.
1.5 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:
E1 Specification for ASTM Liquid-in-Glass Thermometers
E77 Test Method for Inspection and Verification of Thermometers
E100 Specification for ASTM Hydrometers
E126 Test Method for Inspection, Calibration, and Verification of ASTM Hydrometers
E207 Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison With Reference Thermoelement
of Similar EMF-Temperature Properties
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230/E230M Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
E452 Test Method for Calibration of Refractory Metal Thermocouples Using a Radiation Thermometer
E574 Specification for Duplex, Base Metal Thermocouple Wire With Glass Fiber or Silica Fiber Insulation
E585/E585M Specification for Compacted Mineral-Insulated, Metal-Sheathed, Base Metal Thermocouple Cable
E601 Guide for Measuring Electromotive Force (EMF) Stability of Base-Metal Thermoelement Materials With Time in Air
E608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
E644 Test Methods for Testing Industrial Resistance Thermometers
3
E667 Specification for Mercury-in-Glass, Maximum Self-Registering Clinical Thermometers (Withdrawn 2022)
1
This terminology is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.91 on Editorial
and Terminology.
Current edition approved Nov. 1, 2020Dec. 1, 2023. Published November 2020December 2023. Originally approved in 1968. Last previous edition approved in 20192020
ε1
as E344 – 19E344 – 20. . DOI: 10.1520/E0344-20.10.1520/E0344-23.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E344 − 23
E696 Specification for Tungsten-Rhenium Alloy Thermocouple Wire
E710 Test Method for Comparing EMF Stabilities of Base-Metal Thermoelements in Air Using Dual, Simultaneous,
3
Thermal-EMF Indicators (Withdrawn 2006)
E780 Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples and
Mineral-Insulated, Metal-Sheathed Cable at Room Temperature
E825 Specification for Phase Change-Type Disposable Fever Thermometer for Intermittent Determination of Human
Temperature
E839 Test Methods for Sheathed Thermocouples and Sheathed Thermocouple Cable
E879 Specification for Thermistor Sensors for General Purpose and Laboratory Temperature Measurements
E1061 Specification for Direct-Reading Liquid Crystal Forehead Thermometers
E1104 Specification for Clinical Thermometer Probe Covers and Sheaths
E1112 Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature
E1129/E1129M Specification for Thermocouple Connectors
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
E1159 Specification for Thermocouple Materials, Platinum-Rhodium Alloys, and P
...

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