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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 IM (National Scientific Centre "Institute of Metrology")
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
CMC ID :
EURAMET-L-UA-00000OQ7-1
Complex geometry ,
Gear standards
:
-0.1 mm to 0.1 mm
Gear lead master: slope deviation
Absolute expanded uncertainty
:
3 µm to 4 µm
Special set
Diameter : 25 mm to 200 mm
Helix angle : 45 °
Approved on 10 January 2005
Institute service identifier : NSC IM/21
CMC ID :
EURAMET-L-UA-00000OQ5-1
Electric and magnetic fields ,
Magnetic fields below 50 kHz: DC magnetic flux density
:
0.05 T to 2 T
Magnetic inductance meter
Relative expanded uncertainty
:
4.0E-6 T/T
Nuclear magnetic resonance
Approved on 28 April 2010
Institute service identifier : NSC "Institute of Metrology"/7
CMC ID :
EURAMET-EM-UA-00000OPN-1
Form ,
Roundness standards
:
0 µm to 300 µm
Magnification stanart (e. g. fkick standard): roundness
Absolute expanded uncertainty
:
3.0E1 nm to 3.0E3 nm
Q[36 10R] R in mm
The uncertainty is expressed in nm
Stylus-on-spindle roundness instrument
Diameter : 1 mm to 300 mm
Approved on 09 November 2016
Institute service identifier : NSC IM-L-423/22
CMC ID :
EURAMET-L-UA-00000OQD-1
Linear dimensions ,
Line standards
:
1.00E-3 m to 50 m
Engineer or surveyor tape, steel: line spacing L
Absolute expanded uncertainty
:
2 µm to 5.0E2 µm
Q[2, 10L] L in m
The uncertainty is expressed in µm
Laser interferometer
Support : on-flat
Approved on 10 January 2005
Institute service identifier : NSC IM/9
CMC ID :
EURAMET-L-UA-00000OQM-1
Linear dimensions ,
Line standards
:
1.00E-3 m to 30 m
Geodetic tape or wire invar: line spacing L
Absolute expanded uncertainty
:
3 µm to 2.4E2 µm
Q[3, 8L] L in m
The uncertainty is expressed in µm
Laser interferometer
Support : on-flat
Approved on 10 January 2005
Institute service identifier : NSC IM/10
CMC ID :
EURAMET-L-UA-00000OQN-1
Linear dimensions ,
Line standards
:
1 m to 4 m
Surveyor leveling rod: line spacing L
Absolute expanded uncertainty
:
7 µm to 2.2E1 µm
Q[2, 5L] L in m
The uncertainty is expressed in µm
Laser interferometer
Support : horizontal on Airy points
Approved on 10 January 2005
Institute service identifier : NSC IM/11
CMC ID :
EURAMET-L-UA-00000OQO-1
Mass ,
Mass
:
1 g to 10 g
Mass standard
Absolute expanded uncertainty
:
4.2 µg to 6.5 µg
Direct comparison in air
Uncertainty scales with measurand level. The volume of the mass standards is known
Approved on 10 September 2014
CMC ID :
EURAMET-M-UA-00000ORM-1
Mass ,
Mass
:
1 mg to 100 mg
Mass standard
Absolute expanded uncertainty
:
2 µg to 4 µg
Subdivision method
Uncertainty scales with measurand level. The volume of the mass standards is known
Approved on 10 September 2014
CMC ID :
EURAMET-M-UA-00000ORK-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
200 °C to 420 °C
Variable temperature blackbody
Absolute expanded uncertainty
:
0.6 °C to 0.8 °C
Comparison using radiation thermometer and standard variable temperature blackbody
Wavelength : 3.9 µm
Aperture diameter : > or = 10 mm
Approved on 20 June 2014
Institute service identifier : NSC IM/NIL-11-55
CMC ID :
EURAMET-T-UA-00000OTK-1
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
CMC ID :
EURAMET-T-UA-00000OTW-1
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
CMC ID :
EURAMET-T-UA-00000OTQ-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
1085 °C
Variable temperature blackbody
Absolute expanded uncertainty
:
0.9 °C
Calibration using standard radiation thermometer
Wavelength : 0.661 µm
Aperture diameter : > 4.5 mm
Approved on 15 November 2016
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OT3-1
Items for defining ITS-90 ,
Temperature
:
1084.62 °C
Fixed-point blackbody cell (Cu)
Absolute expanded uncertainty
:
0.4 °C
Comparison using radiation thermometer
Wavelength : 0.661 µm
Black body furnace : isothermal
Crucible diameter : 38 mm
Approved on 15 November 2016
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OSA-1
Items for defining ITS-90 ,
Temperature
:
1084.62 °C
Standard radiation thermometer
Absolute expanded uncertainty
:
0.5 °C
Calibration against standard fixed-point (Cu) blackbody
Wavelength : 0.661 µm
Target diameter : < 3 mm
Approved on 15 November 2016
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OSF-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
29.7646 °C
Digital thermometer IPRT
Absolute expanded uncertainty
:
3.0E-2 °C
Calibration at gallium fixed point
Temperature-controlled bath : 0
Approved on 31 March 2020
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OT4-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
29.7646 °C to 660.323 °C
Thermocouple (type Au/Pt)
Absolute expanded uncertainty
:
0.3 °C
Calibration at fixed points
Ga, In, Sn, Zn, Al : 3-zone
Approved on 15 November 2016
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OSV-1
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
CMC ID :
EURAMET-PR-UA-00000OS5-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
29.7646 °C
Digital thermometer IRPT
Absolute expanded uncertainty
:
0.4 °C
Calibration at gallium fixed point
Temperature-controlled furnace : 1-zone
Uncertainty at the calibration point. Hysteresis uncertainty for each IPRT must be added to the combined uncertainty quoted in the calibration report
Approved on 23 September 2011
Institute service identifier : NSC IM/21
CMC ID :
EURAMET-T-UA-00000OU8-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
29.7646 °C
Digital thermometer thermocouple
Absolute expanded uncertainty
:
0.4 °C
Calibration at gallium fixed point
Temperature-controlled furnace : 1-zone
Uncertainty at the calibration point. Pre-determined value of inhomogeneity included in the CMC entry
Approved on 23 September 2011
Institute service identifier : NSC IM/17
CMC ID :
EURAMET-T-UA-00000OU0-1
