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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")
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
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
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
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
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
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
:
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
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
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
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
1084.62 °C
Thermocouple (type Pt/Pd)
Absolute expanded uncertainty
:
0.4 °C
Copper fixed point
Temperature-controlled furnace : 3-zone
Approved on 15 November 2016
Institute service identifier : NSC IM/T
CMC ID :
EURAMET-T-UA-00000OU7-1
