Temperature Measurement Standards - Standards Products - Standards & Publications - Products & Services

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ASTM's temperature measurement standards provide the material and property specifications, as well as guides for the testing, calibration, and use of laboratory, industrial, and clinical instruments used in the determination of thermal variables, particularly temperature. These include thermoelement materials, hydrometers, liquid-in-glass thermometers, thermocouples, resistance thermometers, and thermistor sensors. These instruments quantify thermal parameters by measuring some physical property of a working material that varies with temperature. They are then calibrated either by comparing their results with that of certified thermometers, or by checking them against known fixed points on the temperature scale. These temperature measurement standards are useful to medical and industrial supplies manufacturers, laboratories, and other producers and users of such thermal instruments in helping them fabricate quality equipments towards their safe and accurate utilisation.

Temperature Measurement Standards

ASTM's temperature measurement standards provide the material and property specifications, as well as guides for the testing, calibration, and use of laboratory, industrial, and clinical instruments used in the determination of thermal variables, particularly temperature. These include thermoelement materials, hydrometers, liquid-in-glass thermometers, thermocouples, resistance thermometers, and thermistor sensors. These instruments quantify thermal parameters by measuring some physical property of a working material that varies with temperature. They are then calibrated either by comparing their results with that of certified thermometers, or by checking them against known fixed points on the temperature scale. These temperature measurement standards are useful to medical and industrial supplies manufacturers, laboratories, and other producers and users of such thermal instruments in helping them fabricate quality equipments towards their safe and accurate utilisation.

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Digital Contact Thermometers

E2877-12(2019) Standard Guide for Digital Contact Thermometers

Editorial and Terminology

E1594-22 Standard Guide for Expression of Temperature

E344-23 Terminology Relating to Thermometry and Hydrometry

Fundamentals in Thermometry

E3186-19 Standard Guide for Use and Testing of Dry-Block Temperature Calibrators

E2623-14(2021) Standard Practice for Reporting Thermometer Calibrations

E563-22 Standard Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature

E2488-22 Standard Guide for the Preparation and Evaluation of Liquid Baths Used for Temperature Calibration by Comparison

E1750-23 Standard Guide for Use of Water Triple Point Cells

E1502-24 Standard Guide for Use of Fixed-Point Cells for Reference Temperatures

Radiation Thermometry

E2847-21 Standard Test Method for Calibration and Accuracy Verification of Wideband Infrared Thermometers

E1256-17(2022) Standard Test Methods for Radiation Thermometers (Single Waveband Type)

E2758-22 Standard Guide for Selection and Use of Infrared Thermometers

Resistance Thermometers

E1137/E1137M-08(2020) Standard Specification for Industrial Platinum Resistance Thermometers

E879-20 Standard Specification for Thermistor Sensors for General Purpose and Laboratory Temperature Measurements

E2821-20 Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed Cable Used in Industrial Resistance Thermometers

E2593-17(2023) Standard Guide for Accuracy Verification of Industrial Platinum Resistance Thermometers

E644-11(2025) Standard Test Methods for Testing Industrial Resistance Thermometers

Thermocouples - Calibration

E601-20 Standard Guide for Measuring Electromotive Force (EMF) Stability of Base-Metal Thermoelement Materials With Time in Air

E1751/E1751M-20 Standard Guide for Temperature Electromotive Force (emf) Tables for Non-Letter Designated Thermocouple Combinations

E207-21 Standard Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison With Reference Thermoelement of Similar EMF-Temperature Properties

E220-19 Standard Test Method for Calibration of Thermocouples By Comparison Techniques

E452-02(2023) Standard Test Method for Calibration of Refractory Metal Thermocouples Using a Radiation Thermometer

E230/E230M-23a Standard Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples

Thermocouples - Materials and Accessories Specifications

E1159-15(2020)e1 Standard Specification for Thermocouple Materials, Platinum-Rhodium Alloys, and Platinum

E1652-21 Standard Specification for Magnesium Oxide and Aluminum Oxide Powder and Crushable Insulators Used in the Manufacture of Base Metal Thermocouples, Metal-Sheathed Platinum Resistance Thermometers, and Noble Metal Thermocouples

E696-23 Standard Specification for Tungsten-Rhenium Alloy Thermocouple Wire

E2820-13(2024) Standard Test Method for Evaluating Thermal EMF Properties of Base-Metal Thermocouple Connectors

E1129/E1129M-19(2024) Standard Specification for Thermocouple Connectors

E1684/E1684M-19(2024) Standard Specification for Miniature Thermocouple Connectors

Thermocouples - Specifications

E574-23 Standard Specification for Duplex, Base Metal Thermocouple Wire With Glass Fiber or Silica Fiber Insulation

E235/E235M-23 Standard Specification for Type K and Type N Mineral-Insulated, Metal-Sheathed Thermocouples for Nuclear or for Other High-Reliability Applications

E585/E585M-23 Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed, Base Metal Thermocouple Cable

E608/E608M-24 Standard Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples

E2181/E2181M-24 Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal Thermocouples and Thermocouple Cable

Thermocouples - Testing

E2846-20 Standard Guide for Thermocouple Verification

E780-17(2021) Standard Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples and Mineral-Insulated, Metal-Sheathed Cable at Room Temperature

E2730-22 Standard Guide for Calibration and Use of Thermocouple Reference Junction Probes in Evaluation of Electronic Reference Junction Compensation Circuits

E1350-18(2023) Standard Guide for Testing Sheathed Thermocouples, Thermocouple Assemblies, and Connecting Wires Prior to, and After Installation or Service

E839-23 Standard Test Methods for Sheathed Thermocouples and Sheathed Thermocouple Cable

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