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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Botswana, BOBS (Botswana Bureau of Standards)
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
0 °C to 50 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty
:
0.13 °C
Comparison in liquid bath
Total Immersion LIG, Mercury In Glass, 0.2 °C graduation. The uncertainty is evaluated at measurement points and it is the maximum over the range. The resolution of the UUT component included in the CMC calculation. The uncertainty was evaluated for Total immersion and the resolution of UUT was 0.2 °C. ELC Correction evaluated and included in the UB.
Approved on 12 April 2019
Institute service identifier : BOBSTemp01
CMC ID :
AFRIMETS-T-BW-00000DJJ-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
50 °C to 100 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty
:
8.0E-2 °C
Comparison in liquid bath
Total Immersion LIG, Mercury In Glass, 0.1 °C graduation. The uncertainty is evaluated at measurement points and it is the maximum over the range. The resolution of the UUT component included in the CMC calculation. The uncertainty was evaluated for Total immersion and the resolution of UUT was 0.1 °C. ELC Correction evaluated and included in the UB.
Approved on 12 April 2019
Institute service identifier : BOBSTemp01
CMC ID :
AFRIMETS-T-BW-00000DJK-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
100 °C to 200 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty
:
9.0E-2 °C
Comparison in liquid bath
Total Immersion LIG, Mercury In Glass, 0.1 °C graduation. The uncertainty is evaluated at measurement points and it is the maximum over the range. The resolution of the UUT component included in the CMC calculation. The uncertainty was evaluated for Total immersion and the resolution of UUT was 0.1 °C. ELC Correction evaluated and included in the UB.
Approved on 12 April 2019
Institute service identifier : BOBSTemp01
CMC ID :
AFRIMETS-T-BW-00000DJL-1
