ASTM E2758-15
(Guide)Standard Guide for Selection and Use of Wideband, Low Temperature Infrared Thermometers
Standard Guide for Selection and Use of Wideband, Low Temperature Infrared Thermometers
SIGNIFICANCE AND USE
4.1 This guide provides guidelines and basic test methods for the use of infrared thermometers. The purpose of this guide is to provide a basis for users of IR thermometers to make more accurate measurements, to understand the error in measurements, and reduce the error in measurements.
SCOPE
1.1 This guide covers electronic instruments intended for measurement of temperature by detecting intensity of thermal radiation exchanged between the subject of measurement and the sensor.
1.2 The devices covered by this guide are referred to as IR thermometers.
1.3 The IR thermometers covered in this guide are instruments that are intended to measure temperatures below 1000 °C and measure a wide band of thermal radiation in the infrared region.
1.4 This guide covers best practice in using IR thermometers. It addresses concerns that will help the user make better measurements. It also provides graphical tables to help determine the accuracy of measurements.
1.5 Details on the design and construction of IR thermometers are not covered in this guide.
1.6 This guide does not cover medium- and high-temperature IR thermometry (above 1000 °C). It does not address the use of narrowband IR thermometers.
1.7 The values of quantities stated in SI units are to be regarded as the standard. The values of quantities in parentheses are not in SI and are optional.
1.8 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.
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Designation: E2758 − 15
StandardGuide for
Selection and Use of Wideband, Low Temperature Infrared
1
Thermometers
This standard is issued under the fixed designation E2758; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This guide covers electronic instruments intended for
E1256Test Methods for Radiation Thermometers (Single
measurement of temperature by detecting intensity of thermal
Waveband Type)
radiation exchanged between the subject of measurement and
E1862Practice for Measuring and Compensating for Re-
the sensor.
flected Temperature Using Infrared Imaging Radiometers
1.2 The devices covered by this guide are referred to as IR
E1897Practice for Measuring and Compensating for Trans-
thermometers.
mittance of anAttenuating Medium Using Infrared Imag-
ing Radiometers
1.3 The IR thermometers covered in this guide are instru-
E1933Practice for Measuring and Compensating for Emis-
ments that are intended to measure temperatures below 1000
sivity Using Infrared Imaging Radiometers
°Candmeasureawidebandofthermalradiationintheinfrared
3
2.2 IEC Standards:
region.
IEC 62492-1 TS Industrial Process Control Devices—
1.4 This guide covers best practice in using IR thermom-
Radiation Thermometers—Part 1: Technical Data for
eters. It addresses concerns that will help the user make better
Radiation Thermometers
measurements. It also provides graphical tables to help deter-
2.3 BIPM Standards:
mine the accuracy of measurements.
JCGM 200:2012International Vocabulary of Metrology—
1.5 Details on the design and construction of IR thermom-
Basic and General Concepts andAssociatedTerms (VIM)
eters are not covered in this guide.
3. Terminology
1.6 This guide does not cover medium- and high-
temperature IR thermometry (above 1000 °C). It does not 3.1 Definitions:
address the use of narrowband IR thermometers. 3.1.1 absolute zero, n—a temperature of 0 K (-273.15 °C).
3.1.2 atmospheric attenuation, n—a ratio showing how
1.7 The values of quantities stated in SI units are to be
muchthermalradiationinagivenspectralrangeisabsorbedor
regarded as the standard. The values of quantities in parenthe-
scattered in air over a given distance.
ses are not in SI and are optional.
3.1.3 atmospheric transmission, n—a ratio showing how
1.8 This standard does not purport to address all of the
well thermal radiation in a given spectral range at a given
safety concerns, if any, associated with its use. It is the
distance travels through a certain distance of air.
responsibility of the user of this standard to establish appro-
3.1.4 attenuating medium, n—a semi-transparent solid, liq-
priate safety and health practices and determine the applica-
uid or gas, such as a window, filter, external optics, or an
bility of regulatory limitations prior to use.
atmosphere that reduces thermal radiation, or combinations
thereof.
3.1.5 background radiation—see reflected radiation.
1 2
This guide is under the jurisdiction ofASTM Committee E20 on Temperature For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Measurement and is the direct responsibility of Subcommittee E20.02 on Radiation contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Thermometry. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2015. Published March 2015. Originally the ASTM website.
3
approved in 2010. Last previous edition approved in 2010 as E2758–10. Available from International Electrotechnical Commission (IEC), 3, Rue de
DOI:10.1520/E2758-15. Varembé, CH-1211 Geneva 20, Switzerland, www.iec.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2758 − 15
3.1.6 blackbody, n—the perfect or ideal source of thermal 3.1.23 infrared sensing device, n—one of a wide class of
radiant power having a spectral distribution described by instruments used to display or record (or both) information
Planck’s Law. related to the thermal radiation received from any object
surfaces viewed by the instrument.
3.1.7 blackbody simulator, n—a device with an emissivity
close to unity that can be heated or cooled to a stable 3.1.24 infrared (IR) thermometer, n—optoelectronic instru-
temperature. ment adapted for noncontact measurement of temperature of a
subject by utilizing thermal radiation exchange between the
3.1.8 calibration adjustment, n—the correction to an IR
subject and the sensor.
thermometer based on its ca
...
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: E2758 − 10 E2758 − 15
Standard Guide for
Selection and Use of Wideband, Low Temperature Infrared
1
Thermometers
This standard is issued under the fixed designation E2758; 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 guide covers electronic instruments intended for measurement of temperature by detecting intensity of thermal
radiation exchanged between the subject of measurement and the sensor.
1.2 The devices covered by this guide are referred to as IR thermometers.
1.3 The IR thermometers covered in this guide are instruments that are intended to measure temperatures below 1000 °C and
measure a wide band of thermal radiation in the infrared region.
1.4 This guide covers best practice in using IR thermometers. It addresses concerns that will help the user make better
measurements. It also provides graphical tables to help determine the accuracy of measurements.
1.5 Details on the design and construction of IR thermometers are not covered in this guide.
1.6 This guide does not cover medium- and high-temperature IR thermometry (above 1000 °C). It does not address the use of
narrowband IR thermometers.
1.7 The values of quantities stated in SI units are to be regarded as the standard. The values of quantities in parentheses are not
in SI and are optional.
1.8 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E1256 Test Methods for Radiation Thermometers (Single Waveband Type)
E1862 Practice for Measuring and Compensating for Reflected Temperature Using Infrared Imaging Radiometers
E1897 Practice for Measuring and Compensating for Transmittance of an Attenuating Medium Using Infrared Imaging
Radiometers
E1933 Practice for Measuring and Compensating for Emissivity Using Infrared Imaging Radiometers
3
2.2 IEC Standards:
IEC 62942-1 TS IEC 62492-1 TS Industrial process control devices—Radiation thermometers—PartProcess Control Devices—
Radiation Thermometers—Part 1: Technical dataData for radiation thermometersRadiation Thermometers
2.3 BIPM Standards:
JCGM 200:2012 International Vocabulary of Metrology—Basic and General Concepts and Associated Terms (VIM)
3. Terminology
3.1 Definitions:
3.1.1 absolute zero, n—a temperature of 0 K (-273.15 °C).
1
This guide is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.02 on Radiation
Thermometry.
Current edition approved May 1, 2010March 1, 2015. Published June 2010March 2015. DOI:10.1520/Originally approved in 2010. Last previous edition approved in 2010
as E2758 - 10.E2758 – 10. DOI:10.1520/E2758-15.
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
Available from International Electrotechnical Commission (IEC), 3, rueRue de Varembé, CH-1211 Geneva 20, Switzerland, www.iec.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2758 − 15
3.1.2 atmospheric attenuation, n—a ratio showing how much thermal radiation in a given spectral range is absorbed or scattered
in air over a given distance.
3.1.3 atmospheric transmission, n—a ratio showing how well thermal radiation in a given spectral range at a given distance
travels through a certain distance of air.
3.1.4 attenuating medium, n—a semi-transparent solid, liquid or gas, such as a window, filter, external optics and/oroptics, or
an atmosphere that reduces thermal radiation.radiation, or combinations thereof.
3.1.5 background radiation—see reflected radiation.
3.1.6 blackbody, n—the perfect or ideal source of thermal radiant power having a spectral distribution described by Planck’s
Law.
3.1.7 blackbody simulator, n—a device with an emissivity close to unity that can be heated or cooled to a stable temperature.
3.1.8 calibration adjustment, n—the
...
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