Guide to the Expression of Uncertainty of Measurement (1995) [BIPM, IEC, IfCC, ISO,
IUPAC, IUPAP, OIML]International Vocabulary of Basic and General Terms in Metrology (1993) [BIPM, IEC, IFCC,
ISO, IUPAC, IUPAP, OIML]
This Technical Specification applies to radiation thermometry. It defines the technical data,
i.e. metrological data to be given in data sheets and operating instructions for radiation
thermometers with one wavelength range and one measurement field, to ensure that the data
and terminology are used consistently.
Technical data for radiation thermometers are frequently given using terms whose meaning is
not clear and therefore open to misinterpretation. Moreover, the data are given for measuring
conditions which are not standardised. Often, influence parameters and mutual
interdependencies of technical data are not given. As a result, the user cannot easily compare
the technical design and performance data of radiation thermometers and tests for
compliance with the manufacturer's specifications are difficult to carry out.
The purpose of this Technical Specification is to facilitate comparability and testability.
Therefore, unambiguous definitions are stipulated for stating technical data under
standardised measuring conditions.
NOTE 1 Infrared ear thermometers are excluded from this Specification.
NOTE 2 It is not compulsory for manufacturers and sellers of radiation thermometers to include ail items given in
this Specification for a specific type of radiation thermometer. Only the relevant data should be stated and should
comply with this Specification.