This thesis analyses the issues and requirements that any accredited laboratory must
satisfy when measuring with non-contact (infrared) thermometers. A laboratory can be
accredited for the calibration of non-contact thermometers once it has established a quality
system and appropriate procedures in accordance with the requirements of the SIST EN
ISO/IEC 17025:2017 standard. The purpose of the thesis is to examine the calibration
capabilities of accredited laboratories for the calibration of non-contact thermometers in
Europe and worldwide, and to compare them with the measurement capabilities of national
metrology institutes (NMIs). The latter are confirmed through interlaboratory comparisons and
recorded in the BIPM Key Comparison Database (KCDB) of key comparisons maintained by
the International Bureau of Weights and Measures (BIPM).
The first part presents the SIST EN ISO/IEC 17025:2017 standard—its scope, relations
to other standards, terms and definitions, general requirements, etc.—and provides a general
overview of laboratory accreditation.
The second part presents an analysis of the calibration capabilities of accredited
laboratories for the calibration of non-contact thermometers, followed by my final conclusions.
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