ASTM E344-01

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 .

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• ICS: 01.040.17 - Metrology and measurement. Physical phenomena (Vocabularies)
• ICS: 17.200.20 - Temperature-measuring instruments
• Technical Committee: E20 - Temperature Measurement
• Drafting Committee: E20.91 - Editorial and Terminology

Relations

• Replaces: ASTM E344-00 - Terminology Relating to Thermometry and Hydrometry
• Effective Date: 10-Oct-2001
• Referred By: ASTM E1684/E1684M-19 - Standard Specification for Miniature Thermocouple Connectors
• Effective Date: 10-Oct-2001
• Referred By: ASTM E3186-19 - Standard Guide for Use and Testing of Dry-Block Temperature Calibrators
• Effective Date: 10-Oct-2001
• Referred By: ASTM E574-23 - Standard Specification for Duplex, Base Metal Thermocouple Wire With Glass Fiber or Silica Fiber Insulation
• Effective Date: 10-Oct-2001
• Referred By: ASTM E1-14(2020) - Standard Specification for ASTM Liquid-in-Glass Thermometers
• Effective Date: 10-Oct-2001
• Referred By: ASTM E77-14(2021) - Standard Test Method for Inspection and Verification of Thermometers
• Effective Date: 10-Oct-2001
• Referred By: ASTM E1142-23a - Standard Terminology Relating to Thermophysical Properties
• Effective Date: 10-Oct-2001
• Referred By: ASTM E2877-12(2019) - Standard Guide for Digital Contact Thermometers
• Effective Date: 10-Oct-2001
• Referred By: ASTM E644-11(2019) - Standard Test Methods for Testing Industrial Resistance Thermometers
• Effective Date: 10-Oct-2001
• Referred By: ASTM E207-21 - Standard Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison With Reference Thermoelement of Similar EMF-Temperature Properties
• Effective Date: 10-Oct-2001
• Referred By: ASTM E2593-17(2023) - Standard Guide for Accuracy Verification of Industrial Platinum Resistance Thermometers
• Effective Date: 10-Oct-2001
• Referred By: ASTM E879-20 - Standard Specification for Thermistor Sensors for General Purpose and Laboratory Temperature Measurements
• Effective Date: 10-Oct-2001
• Referred By: ASTM D909-22 - Standard Test Method for Supercharge Rating of Spark-Ignition Aviation Gasoline
• Effective Date: 10-Oct-2001
• Referred By: ASTM E1350-18(2023) - Standard Guide for Testing Sheathed Thermocouples, Thermocouple Assemblies, and Connecting Wires Prior to, and After Installation or Service
• Effective Date: 10-Oct-2001
• Referred By: ASTM E1750-10(2016) - Standard Guide for Use of Water Triple Point Cells
• Effective Date: 10-Oct-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 344 – 01
Terminology Relating to
1
Thermometry and Hydrometry
This standard is issued under the fixed designation E 344; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 696 Specification for Tungsten-Rhenium Alloy Thermo-
2
couple Wire
1.1 This terminology is a compilation of definitions of terms
E 710 Test Method for Comparing EMF Stabilities of Base-
used by ASTM Committee E20 on Temperature Measurement.
Metal Thermoelements in Air Using Dual, Simultaneous,
1.2 Terms with definitions generally applicable to the fields
2
Thermal-EMF Indicators
of thermometry and hydrometry are listed in 3.1.
E 825 Specification for Phase Change-Type Disposable Fe-
1.3 Terms with definitions applicable only to the indicated
ver Thermometer for Intermittent Determination of Human
standards in which they appear are listed in 3.2.
2
Temperature
1.4 Information about the International Temperature Scale
E 839 Test Methods for Sheathed Thermocouples and
of 1990 is given in Appendix X1.
2
Sheathed Thermocouple Material
2. Referenced Documents E 879 Specification for Thermistor Sensors for Clinical
2
Laboratory Temperature Measurements
2.1 ASTM Standards:
2
E 1061 Specification for Direct-Reading Liquid Crystal
E 1 Specification for ASTM Thermometers
2
Forehead Thermometers
E 77 Test Method for Inspection and Verification of Ther-
2
E 1104 Specification for Clinical Thermometer Probe Cov-
mometers
2
2
ers and Sheaths
E 100 Specification for ASTM Hydrometers
E 1112 Specification for Electronic Thermometer for Inter-
E 126 Test Method for Inspection and Verification of Hy-
2
2
mittent Determination of Patient Temperature
drometers
E 1129/E 1129M Specification for Thermocouple Connec-
E 207 Test Method for Thermal EMF Test of Single Ther-
2
tors
moelement Materials by Comparison with a Reference
3
E 1137 Specification for Industrial Platinum Resistance
Thermoelement of Similar EMF-Temperature Properties
2
Thermometers
E 220 Test Method for Calibration of Thermocouples by
2
E 1159 Specification for Thermocouple Materials,
Comparison Techniques
2
Platinum-Rhodium Alloys, and Platinum
E 230 Specification and Temperature-Electromotive Force
2
E 1256 Test Methods for Radiation Thermometers (Single
(EMF) Tables for Standardized Thermocouples
2
Waveband Type)
E 452 Test Method for Calibration of Refractory Metal
2
E 1299 Specification for Reusable Phase-Change-Type Fe-
Thermocouples Using a Radiation Thermometer
ver Thermometer for Intermittent Determination of Human
E 574 Specification for Duplex, Base Metal Thermocouple
2
2
Temperature
Wire with Glass Fiber or Silica Fiber Insulation
2
E 1350 Guide for Testing Sheathed Thermocouples Prior to,
E 585/E 585M Specification for a Radiation Thermometer
2
During, and After Installation
E 601 Test Method for Comparing EMF Stability of Single-
2
E 1502 Guide for Use of Freezing-Point Cells for Reference
Element Base-Metal Thermocouple Materials in Air
2
Temperatures
E 608 Specification for Metal-Sheathed Base-Metal Ther-
2
2
E 1594 Guide for Expression of Temperature
mocouples
2
E 1750 Guide for Use of Water Triple Point Cells
E 644 Test Methods for Testing Industrial Resistance Ther-
2
E 1965 Specification for Infrared Thermometers for Inter-
mometers
2
mittent Determination of Patient Temperature
E 667 Specification for Maximum Self-Registering
2
Mercury-in-Glass Clinical Thermometers
3. Terminology
3.1 Definitions:
1
This terminology is under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and is the direct responsibility of Subcommittee E20.91
accuracy, n—of a temperature measurement, closeness of
on Editorial and Terminology.
agreement between the result of a temperature measurement
Current edition approved June 10, 2001. Published October 2001. Originally
and a true value of the temperature.
published as E 344–68. Last previous edition E 344–00.
2
Annual Book of ASTM Standards, Vol 14.03.
3
DISCUSSION—Accuracy is a qualitative concept.
Annual Book of ASTM Standards, Vol 06.03.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

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E 344
base metal thermocouple, n—thermocouple whose thermo- from the thermocouple.
elements are composed primarily of base metals and their
DISCUSSION—They have similar thermoelectric properties and within
alloys. (See also noble metal thermocouple; refractory
a stated temperature range effectively transfer the reference junction to
metal thermocouple.)
the other end of the wires.
DISCUSSION—Base metals used in thermoelements include nickel,
...