METROLOGICAL ASSURANCE OF NATIONAL PYROMETRY
Today's national pyrometry metrological basis is considered. The background, its connection with the development of metrology in the USSR is shown. Measurement standards of different levels are described - from the Primary reference temperature unit to the working measurement standards, and also the interaction between them, their part in the verification scheme according to GOST 8.558-2009 "State verification scheme for temperature measuring devices". The review is made of the standard measuring instruments (emitters and pyrometers) produced both by major domestic manufacturers and well represented on the domestic market foreign manufacturers. Ensurance of traceability of measuring instruments to the Primary reference temperature unit is analyzed.