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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)
Austria, E+E (E+E Elektronik)
Fluid flow , Gas flow speed : 0.04 m/s to 2 m/s
Anemometer, air velocity meter
Relative expanded uncertainty
0.4/vref + 0.47

vref: gas flow speed in m/s

The uncertainty is expressed in %

Comparison with Laser Doppler Anemometer
Gas : air
Ambient temperature : (23 ± 3) °C
Relative humidity : (45 ± 20) % rh
Atmospheric pressure : (1000 ± 80) hPa
Approved on 16 November 2012
Institute service identifier : E+E_AV_2
Fluid flow , Gas flow speed : 0.3 m/s to 40 m/s
Anemometer, air velocity meter
Relative expanded uncertainty
0.4/vref + 0.47

vref: gas flow speed in m/s

The uncertainty is expressed in %

Comparison with Laser Doppler Anemometer
Gas : air
Atmospheric temperature : 5 °C to 80 °C
Relative humidity : (45 ± 20) % rh
Atmospheric pressure : (1000 ± 80) hPa
Approved on 16 November 2012
Institute service identifier : E+E_AV_1
Brazil, LNMRI/IRD (Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, IRD)
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 2600 Bq/g to 2.60E6 Bq/g
Relative expanded uncertainty 5.2 %
Germanium spectrometer, measured or calculated efficiency, balance
Se-75, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2045
Ionizing radiation
Emission rate , Single nuclide, solid : 100 s-1 to 1.00E6 s-1
Relative expanded uncertainty 5 %
Germanium spectrometer, measured or calculated efficiency
Mn-54, < 1 cm active area, total outside diameter 2.5 cm
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2057
Ionizing radiation
Activity per unit mass , Multi nuclide, solution : 500 Bq/g to 1.00E5 Bq/g
Relative expanded uncertainty 5 %
Germanium spectrometer, measured or calculated efficiency, balance
Ce-139, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2048
Ionizing radiation
Activity per unit mass , Multi nuclide, solution : 500 Bq/g to 1.00E5 Bq/g
Relative expanded uncertainty 5 %
Germanium spectrometer, measured or calculated efficiency, balance
Co-57, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2048
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 3.70E4 Bq/g to 1.00E9 Bq/g
Relative expanded uncertainty 0.9 %
Pressurized ionization chamber, balance
Ba-133, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2001
Ionizing radiation
Activity per unit mass , Single nuclide, solid : 520 Bq/g to 7.40E5 Bq/g
Relative expanded uncertainty 3 %
Planar NaI(Tl) crystals, measured or calculated efficiency, balance
Ba-133, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2059
Ionizing radiation
Activity , Single nuclide, solid : 100 Bq to 5.00E4 Bq
Relative expanded uncertainty 4 %
Germanium spectrometer, measured or calculated efficiency
Ba-133, point source, active area < 5 mm
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2018
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 520 Bq/g to 7.40E5 Bq/g
Relative expanded uncertainty 3.1 %
Planar NaI(Tl) crystals, measured or calculated efficiency, balance
Ce-139, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2060
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 3.70E5 Bq/g to 1.00E10 Bq/g
Relative expanded uncertainty 0.8 %
Pressurized ionization chamber, balance
Ce-139, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2002
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 3.70E4 Bq/g to 1.00E9 Bq/g
Relative expanded uncertainty 2.5 %
Pressurized ionization chamber, balance
I-123, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2014
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 50 Bq/g to 1.00E6 Bq/g
Relative expanded uncertainty 3 %
Germanium spectrometer, measured or calculated efficiency, balance
Ba-133, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2028
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 6.00E6 Bq/g to 3.00E11 Bq/g
Relative expanded uncertainty 3 %
Pressurized ionization chamber, balance
I-125, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma anticoincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2087
Ionizing radiation
Activity , Single nuclide, solid : 100 Bq to 1.00E5 Bq
Relative expanded uncertainty 4 %
Germanium spectrometer, measured or calculated efficiency
Mn-54, point source, active area < 5 mm
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2024
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 2600 Bq/g to 2.60E6 Bq/g
Relative expanded uncertainty 5.4 %
Germanium spectrometer, measured or calculated efficiency, balance
Yb-169, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2044
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 500 Bq/g to 1.00E5 Bq/g
Relative expanded uncertainty 3 %
Germanium spectrometer, measured or calculated efficiency, balance
Mn-54, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2041
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 50 Bq/g to 1.00E6 Bq/g
Relative expanded uncertainty 3 %
Germanium spectrometer, measured or calculated efficiency, balance
Zn-65, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2047
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 7.40E4 Bq/g to 1.00E9 Bq/g
Relative expanded uncertainty 0.9 %
Pressurized ionization chamber, balance
I-123, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma anticoincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2086
Ionizing radiation
Activity per unit mass , Single nuclide, solution : 3.70E4 Bq/g to 1.00E9 Bq/g
Relative expanded uncertainty 2.1 %
Pressurized ionization chamber, balance
Yb-169, 3 mL, LNMRI/IRD glass ampoule
Reference standard : 4 pi [e+X]-gamma coincidence, weight set
Source of traceability : LNMRI/IRD
Approved on 11 April 2019
Institute service identifier : SIM-RAD-LNMRI/IRD-2012

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