ASTM Subcommittee E20.02 on Radiation Thermometry
Encyclopedia
The ASTM Subcommittee E20.02 on Radiation Thermometry is a subcommittee of the ASTM Committee E20 on Temperature Measurement, a committee of ASTM International
. The subcommittee is responsible for standards relating to radiation
or infrared
(IR) temperature measurement
. The E20.02's standards are published along with the rest of the E20's standards in the Annual Book of ASTM Standards, Volume 14.03. E20.02 has been headed by Frank Liebmann since 2008.
Subcommittee meetings generally take place in May and November as part of the E20 meetings.
This standard contains test methods for the following areas:
This standard will be published as E 2758. It is a guide for the use of hand-held IR thermometers operating in the 8–14 μm band. This includes the bulk of the IR thermometers in operation today. The standard includes the following topics:
ASTM International
ASTM International, known until 2001 as the American Society for Testing and Materials , is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services...
. The subcommittee is responsible for standards relating to radiation
Radiation
In physics, radiation is a process in which energetic particles or energetic waves travel through a medium or space. There are two distinct types of radiation; ionizing and non-ionizing...
or infrared
Infrared
Infrared light is electromagnetic radiation with a wavelength longer than that of visible light, measured from the nominal edge of visible red light at 0.74 micrometres , and extending conventionally to 300 µm...
(IR) temperature measurement
Temperature measurement
Attempts of standardized temperature measurement have been reported as early as 170 AD by Claudius Galenus. The modern scientific field has its origins in the works by Florentine scientists in the 17th century. Early devices to measure temperature were called thermoscopes. The first sealed...
. The E20.02's standards are published along with the rest of the E20's standards in the Annual Book of ASTM Standards, Volume 14.03. E20.02 has been headed by Frank Liebmann since 2008.
History
The E20.02 was started shortly after the E20 Committee was established in 1962.Past chairmen
The following people have served as E20.02 chairman:- Henry J. Kostkowski (ca. 1962– ca. 1974)
- Eugene A. Nutter (ca. 1974–1982)
- G. Raymond Peacock (1982–2008)
Membership
Membership in the organization is open to anyone with an interest in its activities. Participating members join this subcommittee to write standards and to forward their own interests.Subcommittee meetings generally take place in May and November as part of the E20 meetings.
Current standards
E 1256 – 95: Standard Test Method for Radiation Thermometers (Single Waveband Type)This standard contains test methods for the following areas:
- Calibration accuracy test method
- Repeatability test method
- Target size test method
- Response time test method
- Warm-up time test method
- Long-term drift test method
Current work items
WK21204 – Standard Guide for the Selection and Use of Wide-band, Low Temperature Infrared ThermometersThis standard will be published as E 2758. It is a guide for the use of hand-held IR thermometers operating in the 8–14 μm band. This includes the bulk of the IR thermometers in operation today. The standard includes the following topics:
- Basic use of IR thermometry
- Basic IR measurement
- Locating a hot or cold spot
- Wideband instruments
- Emissivity
- Methods of determining emissivity
- Emissivity tables
- FTIR testing
- Comparison method
- Contact vs. non-contact method
- Blackbody method
- Compensating for emissivity
- Methods of determining emissivity
- Background
- Low temperature measurements
- Optical considerations
- Physical considerations
- Special applications of IR thermometry
- Measuring metal surfaces
- Atmospheric attenuation
Future work items
- Special issues in using a wideband low temperature instrument
- Specification of IRTs
- Calibration of IR thermometers
See also
- ASTM
- Infrared thermometerInfrared thermometerInfrared thermometers infer temperature using a portion of the thermal radiation sometimes called blackbody radiation emitted by the object of measurement. They are sometimes called laser thermometers if a laser is used to help aim the thermometer, or non-contact thermometers to describe the...
- PyrometerPyrometerA pyrometer is a non-contacting device that intercepts and measures thermal radiation, a process known as pyrometry.This device can be used to determine the temperature of an object's surface....
- Thin filament pyrometryThin filament pyrometryThin Filament Pyrometry is an optical method used to measure temperatures. It involves the placement of a thin filament in a hot gas stream. Radiative emissions from the filament can be correlated with filament temperature. Filaments are typically Silicon carbide fibers with a diameter of 15...
- ThermographyThermographyInfrared thermography, thermal imaging, and thermal video are examples of infrared imaging science. Thermal imaging cameras detect radiation in the infrared range of the electromagnetic spectrum and produce images of that radiation, called thermograms...
- Black bodyBlack bodyA black body is an idealized physical body that absorbs all incident electromagnetic radiation. Because of this perfect absorptivity at all wavelengths, a black body is also the best possible emitter of thermal radiation, which it radiates incandescently in a characteristic, continuous spectrum...
- Thermal radiationThermal radiationThermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation....
- RadianceRadianceRadiance and spectral radiance are radiometric measures that describe the amount of radiation such as light or radiant heat that passes through or is emitted from a particular area, and falls within a given solid angle in a specified direction. They are used to characterize both emission from...
- EmissivityEmissivityThe emissivity of a material is the relative ability of its surface to emit energy by radiation. It is the ratio of energy radiated by a particular material to energy radiated by a black body at the same temperature...
- Stefan–Boltzmann law
- Planck's law
- Rayleigh–Jeans law
- Wien approximation
- Wien's displacement lawWien's displacement lawWien's displacement law states that the wavelength distribution of thermal radiation from a black body at any temperature has essentially the same shape as the distribution at any other temperature, except that each wavelength is displaced on the graph...
- Kirchhoff's law of thermal radiationKirchhoff's law of thermal radiationIn thermodynamics, Kirchhoff's law of thermal radiation, or Kirchhoff's law for short, is a general statement equating emission and absorption in heated objects, proposed by Gustav Kirchhoff in 1859, following from general considerations of thermodynamic equilibrium and detailed balance.An object...
- Sakuma–Hattori equation