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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)
Ukraine, NSC "Institute of Metrology" (National Scientific Centre "Institute of Metrology")
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 231.928 °C
Thermocouple Au/Pt
Absolute expanded uncertainty : 0.2 °C
Calibration at tin fixed point
Temperature-controlled furnace : 3-zone
Uncertainty at the calibration point. Predetermined value of inhomogeneity included in the CMC entry
Approved on 23 September 2011
Institute service identifier : NSC IM/15
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 40 °C to 200 °C
Radiation thermometer
Absolute expanded uncertainty : 0.6 °C
Calibration against standard variable temperature blackbody
Wavelength : 8 µm to 14 µm
Target diameter : < or = 30 mm
Approved on 20 June 2014
Institute service identifier : NSC IM/NIL-11-58
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 0 °C to 40 °C
Radiation thermometer
Absolute expanded uncertainty : 0.6 °C
Calibration against standard variable temperature blackbody
Wavelength : 8 µm to 14 µm
Target diameter : < or = 30 mm
Approved on 20 June 2014
Institute service identifier : NSC IM/NIL-11-57
Items for defining ITS-90 , Temperature : 156.5985 °C
Long stem SPRT
Absolute expanded uncertainty : 1.1 mK
Calibration at indium fixed point
Temperature-controlled furnace : 1-zone
Approved on 23 September 2011
Institute service identifier : NSC IM/6
Items for defining ITS-90 , Temperature : 29.7646 °C
Long stem SPRT
Absolute expanded uncertainty : 0.5 mK
Calibration at gallium fixed point
Temperature-controlled furnace : 1-zone
Approved on 23 September 2011
Institute service identifier : NSC IM/5
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 660.323 °C to 1084.62 °C
Thermocouple (type B)
Absolute expanded uncertainty : 0.6 °C
Calibration at fixed points
Al, Cu : 3-zone
Approved on 15 November 2016
Institute service identifier : NSC IM/T
Items for defining ITS-90 , Temperature : 231.928 °C
Long stem SPRT
Absolute expanded uncertainty : 1 mK
Calibration at tin fixed point
Temperature-controlled furnace : 3-zone
Approved on 23 September 2011
Institute service identifier : NSC IM/7
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 231.928 °C
Digital thermometer thermocouple
Absolute expanded uncertainty : 0.4 °C
Calibration at tin fixed point
Temperature-controlled furnace : 3-zone
Uncertainty at the calibration point. Predetermined value of inhomogeneity included in the CMC entry
Approved on 23 September 2011
Institute service identifier : NSC IM/19
Photometry , Luminous flux : 1 lm to 500 lm
Tungsten lamp
Relative expanded uncertainty : 2 % to 1 %
Integrating sphere
Correlated colour temperature : 2000 K to 3200 K
Other types of source can be measured with higher uncertainties
Approved on 18 September 2017
Photometry , Luminous flux : 1 lm to 1000 lm
LED
Relative expanded uncertainty : 5 %
Integrating sphere
Peak wavelength : 590 nm to 670 nm (red)
Geometric measurement conditions : full
Approved on 18 September 2017
Complex geometry , Gear standards : 0.01 µm to 10 µm
Gear involute master: involute profile slope deviation (fHa), (fa)
Absolute expanded uncertainty : 0.5 µm
Special interferometer
Base circle diameter : 80 mm to 150 mm
Approved on 10 January 2005
Institute service identifier : NSC IM/23
Complex geometry , Gear standards : 0 mm to 0.1 mm
Gear pitch master: single pitch deviation (Fp)
Absolute expanded uncertainty : 1.5 µm
Special set
Pitch diameter : 60 mm to 400 mm
Approved on 10 January 2005
Institute service identifier : NSC IM/20
Radiations of the mise en pratique , Laser radiations : 633 nm
Frequency stabilized laser: vacuum wavelength
Relative expanded uncertainty : 1.0E-9
Optical beat frequency
Approved on 10 January 2005
Institute service identifier : NSC IM/2
Time scale difference , Time scale difference : -1 s to 1 s
Remote clock vs UTC
Absolute expanded uncertainty : 4.6E1 ns
GPS multi-channel common view, post processed
Averaging time : 1 d
Fractional part of modulo 1 second difference, integer part can be provided also
Approved on 21 February 2013
Institute service identifier : NSC IM/19
Frequency , Frequency : 5 MHz
Local frequency standard
Relative expanded uncertainty : 5.0E-14 Hz/Hz
Phase comparator
Averaging time : 100 s
Relative frequency difference : < 1.0E-10
Frequency instability measurement
Approved on 21 February 2013
Institute service identifier : NSC IM/10
Frequency , Frequency : 1 Hz
Remote frequency standard
Relative expanded uncertainty : 2.0E-13 Hz/Hz
GPS common view
Averaging time : > 1 d
1 Hz measurand level or range means 1 pps clock signal
Approved on 21 February 2013
Institute service identifier : NSC IM/13
Mass , Mass : 10 g to 100 g
Mass standard
Absolute expanded uncertainty : 6.5 µg to 3.1E1 µg
Direct comparison in air
Uncertainty scales with measurand level. The volume of the mass standards is known
Approved on 10 September 2014
Ionizing radiation
Activity per unit mass , Reference material: flora : 0.01 Bq/g to 100 Bq/g
Relative expanded uncertainty 4.2 %
HPGe spectrometer, balance
Eu-152, Marinelli or cylindrical beaker, sample density from 0.9 g/cm3 to 1.1 g/cm3
Reference standard : Calibrated HPGe spectrometer using single nuclide solution, set of standard weights
Source of traceability : VNIIM
Approved on 30 April 2014
Institute service identifier : COO-RAD-NSC IM-2008
Ionizing radiation
Activity per unit mass , Reference material: food : 0.01 Bq/g to 100 Bq/g
Relative expanded uncertainty 4 %
HPGe spectrometer, balance
Cs-137, Marinelli or cylindrical beaker, sample density from 0.9 g/cm3 to 1.1 g/cm3
Reference standard : Calibrated HPGe spectrometer using single nuclide solution, set of standard weights
Source of traceability : VNIIM
Approved on 30 April 2014
Institute service identifier : COO-RAD-NSC IM-2011
Ionizing radiation
Activity per unit mass , Liquid, single nuclide : 0.01 Bq/g to 100 Bq/g
Relative expanded uncertainty 4.2 %
HPGe spectrometer, balance
Eu-152, Marinelli or cylindrical beaker, sample density from 0.9 g/cm3 to 1.1 g/cm3
Reference standard : Calibrated HPGe spectrometer using single nuclide solution, set of standard weights
Source of traceability : VNIIM
Approved on 30 April 2014
Institute service identifier : COO-RAD-NSC IM-2002

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