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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
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
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
CARICOM (Caribbean Community), TTBS (Trinidad and Tobago Bureau of Standards (Trinidad and Tobago/CARICOM))
Mass ,
Mass (E2)
:
1.00E-3 g to 2000 g
Mass
Absolute expanded uncertainty
:
2 µg to 8.0E2 µg
Comparison in air
IPK
TTBS is also currently A2LA accredited for mass calibrations from (20 kg to 1 mg).
Approved on 30 December 2020
Jamaica, BSJ (Bureau of Standards Jamaica)
Mass ,
Mass
:
10 g
Mass standard
Absolute expanded uncertainty
:
7.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
20 g
Mass standard
Absolute expanded uncertainty
:
8.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
100 g
Mass standard
Absolute expanded uncertainty
:
0.17 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
5 kg
Mass standard
Absolute expanded uncertainty
:
8.3 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
20 mg
Mass standard
Absolute expanded uncertainty
:
1.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
2 mg
Mass standard
Absolute expanded uncertainty
:
7.0E-3 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
50 mg
Mass standard
Absolute expanded uncertainty
:
1.3E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
200 g
Mass standard
Absolute expanded uncertainty
:
0.33 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
1 g
Mass standard
Absolute expanded uncertainty
:
3.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
500 mg
Mass standard
Absolute expanded uncertainty
:
2.7E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
1 mg
Mass standard
Absolute expanded uncertainty
:
7.0E-3 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
10 kg
Mass standard
Absolute expanded uncertainty
:
1.7E1 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
2 g
Mass standard
Absolute expanded uncertainty
:
4.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
50 g
Mass standard
Absolute expanded uncertainty
:
0.1 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
200 mg
Mass standard
Absolute expanded uncertainty
:
2.0E-2 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
Mass ,
Mass
:
10 mg
Mass standard
Absolute expanded uncertainty
:
8.0E-3 mg
Substitution method
Temperature : 18.1 °C to 20.9 °C
Humidity : 48% to 60%
Atmospheric pressure : 1001 mbar to 1008 mbar
Approved on 09 August 2006
Institute service identifier : BSJ-SET B
