Comparison
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Comparison
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Results
CCT-K9.4
Metrology area, Sub-field Thermometry, Standard Platinum Resistance Thermometers
Description Realization of the ITS-90 at 692.677 K (Zn FP)
Time of measurements 2024
Status Protocol complete
Measurand Temperature at the freezing point of zinc (Zn FP)
692.677 K
Transfer device Standard Platinum Resistance Thermometers
Comparison type Key Comparison
Consultative Committee CCT (Consultative Committee for Thermometry)
Conducted by CCT (Consultative Committee for Thermometry)
Comments This comparison is initiated by NPL and is designed to compare the realization of the ITS-90 at the freezing point of zinc, 692.677 K (Zn FP) through a) the calibration of SPRTs and b) independent measurements of a transfer open zinc cell. Each participant will use two transfer standard SPRTs to measure two Zn fixed point cells, namely their own national standard cell and a transfer standard cell. The transfer standards used will provided by NPL, and will be two long-stem SPRTs and an open Zn fixed-point cell.
 
Pilot institute NPL
National Physical Laboratory
United Kingdom
Contact person Radka Veltcheva

+447828156038
Additional
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
NPL

National Physical Laboratory, United Kingdom, EURAMET

NRC

National Research Council, Canada, SIM

Comparison
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Results
Comparison
Comparison close
Results