ESTONIAN ACADEMY
PUBLISHERS
eesti teaduste
akadeemia kirjastus
PUBLISHED
SINCE 1952
 
Proceeding cover
proceedings
of the estonian academy of sciences
ISSN 1736-7530 (Electronic)
ISSN 1736-6046 (Print)
Impact Factor (2020): 1.045

Traceability of temperature measurements in Estonia; pp. 116–121

Full article in PDF format | doi: 10.3176/proc.2013.2.05

Authors
Riho Vendt, Viktor Vabson, Toomas Kübarsepp, Mart Noorma

Abstract

This paper presents an overview of the establishment of the national measurement standard for temperature at METROSERT – the national metrology institute in Estonia. The temperature scale and traceability arrangements are realized in the temperature range from – 40 °C to + 300 °C by means of a group of calibrated standard platinum resistance thermometers and water triple point cells. The linkage of the realized water triple point temperature to the international key comparison value with the expanded uncertainty of 187 μK (coverage factor k = 2) is demonstrated. The established laboratory is capable of providing calibration services to customers by comparison calibration with the expanded uncertainty (k = 2) values of 5 mK in the range from – 40 °C to + 200 °C and 12 mK in the range from + 200 °C to + 300 °C.


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