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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)
Finland, FGI (Finnish Geospatial Research Institute)
Gravity ,
Gravitational acceleration
:
9.75 m/s2 to 9.85 m/s2
On (stable) site
Absolute expanded uncertainty
:
8.0E-8 m/s2
Free fall experiment
Ambient temperature : 21 °C ± 8 °C
Approved on 03 January 2007
KCDB ID :
EURAMET-M-FI-000009FE-1
Finland, MIKES (VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus)
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
10 °C to 85 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty
:
7.0E-3 °C
Comparison
Bath : graduation 0.01 °C, reading 10 mm to 25 mm above liquid surface
Approved on 03 November 2009
KCDB ID :
EURAMET-T-FI-0000096V-1
Torque ,
Torque
:
4 N m to 20 N m
Torque measuring device
Relative expanded uncertainty
:
8.0E-4
Mode : clockwise, anticlockwise
Approved on 11 October 2005
KCDB ID :
EURAMET-M-FI-000009FP-1
AC power ,
AC power and energy: three phase, active energy
:
0 kWh to 0.35 kWh
Active energy meter
Relative expanded uncertainty
:
1.2E2 µWh (VAh)-1
Comparison with standard
Voltage : 50 V to 350 V
Current : 0.005 A to 12 A
Power factor : 1 to 0, inductive or capacitive
Frequency : 45 Hz to 65 Hz
Measurement time : 1 s to 100 s
Voltage and current ranges are per phase
Approved on 06 August 2013
Institute service identifier : MIKES/189c
KCDB ID :
EURAMET-EM-FI-00000E7R-1
AC power ,
AC power and energy: three phase, reactive power
:
0 kvar to 12.6 kvar
Power meter
Relative expanded uncertainty
:
2.5E2 µvar (VA)-1
Comparison with standard
Voltage : 50 V to 350 V
Current : 0.005 A to 12 A
Power factor : 1 to 0, inductive or capacitive
Frequency : 45 Hz to 65 Hz
Voltage and current ranges are per phase
Approved on 06 August 2013
Institute service identifier : MIKES/190b
KCDB ID :
EURAMET-EM-FI-00000E7Q-1
High voltage and current ,
High voltage impedance: capacitance dissipation factor
:
0 to 1.00E-3
Compressed gas capacitor, capacitor for high voltage
Absolute expanded uncertainty
:
2.0E-5
Current comparator bridge or sampling of current and voltage
Capacitance : 10 µF to 100 µF
Frequency : 45 Hz to 60 Hz
Current : > 30 µA
Approved on 07 February 2019
Institute service identifier : MIKES/HV46
KCDB ID :
EURAMET-EM-FI-00000E6J-1
High voltage and current ,
High voltage impedance: loss angle for inductance
:
0 mrad to 350 mrad
High voltage reactor
Absolute expanded uncertainty
:
0.2 mrad
Simultaneous sampling of current and voltage
Frequency : 45 Hz to 60 Hz
Current : 50 mA to 300 A
Voltage : 10 mV to 1000 V
Approved on 07 February 2019
Institute service identifier : MIKES/HV13
KCDB ID :
EURAMET-EM-FI-00000E6L-1
High voltage and current ,
High AC voltage: peak values
:
0 % to 10 %
linearity of peak voltage responding measuring system, AC voltmeter, AC voltaqe source
Relative expanded uncertainty
:
0.1 %
Linearity extension according to IEC 60060-2
Voltage range : 100 kV to 1000 kV
Frequency : 46 Hz to 60 Hz
Approved on 11 May 2017
Institute service identifier : MIKES/HV16a
KCDB ID :
EURAMET-EM-FI-00000E8M-1
DC current (up to 100 A) ,
DC current sources: intermediate values
:
1.00E-4 A to 20 A
Multifunction calibrator
Relative expanded uncertainty
:
5 µA/A to 2.0E1 µA/A
Uncertainty table
{"row_1":{"col_1":"","col_2":"Relative expanded uncertainty","col_3":"Method of measurement"},"row_2":{"col_1":"0.1 mA to 100 mA","col_2":"5","col_3":"Voltage across resistance standard"},"row_3":{"col_1":"0.1 A to 2 A","col_2":"5 to 10","col_3":"Voltage across resistance standard"},"row_4":{"col_1":"2 A to 20 A","col_2":"10 to 20","col_3":"Voltage across resistance standard"},"row_5":{"col_1":"0.1 mA to 1 A","col_2":"10","col_3":"Comparison with digital multimeter"}}
Voltage across resistance standard, comparison with digital multimeter
Approved on 06 August 2013
Institute service identifier : MIKES/68n
KCDB ID :
EURAMET-EM-FI-00000E83-1
AC current ,
AC current up to 100 A: sources
:
0.025 A to 10 A
Multifunction calibrator, AC current source
Relative expanded uncertainty
:
2.5E1 µA/A
Direct comparison
Frequency : 45 Hz to 65 Hz
Approved on 06 August 2013
Institute service identifier : MIKES/179a
KCDB ID :
EURAMET-EM-FI-00000E8I-1
DC resistance ,
DC resistance standards and sources: high values
:
1.00E-3 GΩ to 1.00E5 GΩ
Standard resistor
Relative expanded uncertainty
:
3 µΩ/Ω to 1.5E3 µΩ/Ω
Uncertainty table
{"row_1":{"col_1":"","col_2":"Relative expanded uncertainty","col_3":"Method of measurement"},"row_2":{"col_1":"1 MΩ to 10 MΩ","col_2":"3","col_3":"DCC bridge or Modified Wheatstone bridge"},"row_3":{"col_1":"10 MΩ to 100 MΩ","col_2":"5","col_3":"Modified Wheatstone bridge"},"row_4":{"col_1":"0.1 GΩ to 1 GΩ","col_2":"10","col_3":"Modified Wheatstone bridge"},"row_5":{"col_1":"1 GΩ to 10 GΩ","col_2":"20","col_3":"Modified Wheatstone bridge"},"row_6":{"col_1":"10 GΩ to 100 GΩ","col_2":"25","col_3":"Modified Wheatstone bridge"},"row_7":{"col_1":"0.1 TΩ to 1 TΩ","col_2":"70","col_3":"Modified Wheatstone bridge"},"row_8":{"col_1":"1 TΩ to 10 TΩ","col_2":"500","col_3":"Modified Wheatstone bridge"},"row_9":{"col_1":"10 TΩ to 100 TΩ","col_2":"1500","col_3":"Modified Wheatstone bridge"}}
DCC bridge, modified Wheatstone bridge
Approved on 06 January 2015
Institute service identifier : MIKES/37n
KCDB ID :
EURAMET-EM-FI-00000E8Q-1
DC current (up to 100 A) ,
DC current meters: high values
:
10 A to 100 A
Current clamp
Relative expanded uncertainty
:
0.5 %
Multiturn coil
Approved on 06 August 2013
Institute service identifier : MIKES/77
KCDB ID :
EURAMET-EM-FI-00000E8F-1
Frequency ,
Frequency
:
1 MHz
Local frequency standard
Relative expanded uncertainty
:
3.0E-12 Hz/Hz
Phase time measurement
Averaging time : 1000 s
Approved on 08 June 2007
Institute service identifier : MIKES/2
KCDB ID :
EURAMET-TF-FI-000005BC-1
Frequency ,
Frequency
:
5 MHz
Local frequency standard
Relative expanded uncertainty
:
3.0E-12 Hz/Hz
Phase comparator
Averaging time : 1 s
Approved on 08 June 2007
Institute service identifier : MIKES/3
KCDB ID :
EURAMET-TF-FI-000005BD-1
Frequency ,
Frequency
:
10 Hz to 5.00E9 Hz
General frequency source
Absolute expanded uncertainty
(1E-11)f + 1E-05 f frequency in Hz
The uncertainty is expressed in Hz
Counter
Averaging time : 100 s
Approved on 08 June 2007
Institute service identifier : MIKES/6
KCDB ID :
EURAMET-TF-FI-000005B6-1
Sound calibrators ,
Sound pressure level
:
94 dB (reference: 20 µPa) to 114 dB (reference: 20 µPa)
Sound calibrator, multi-frequency
Absolute expanded uncertainty
:
0.15 dB
Calibrated measurement microphone
Frequency : 8 kHz to 12.5 kHz
Microphone type : LS2P
Approved on 09 November 2006
KCDB ID :
EURAMET-AUV-FI-000006HW-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS2
Absolute expanded uncertainty
:
5.0E-2 dB
IEC 61094-2:1992
Frequency : 125 Hz to 8 kHz
Approved on 09 November 2006
KCDB ID :
EURAMET-AUV-FI-000006HO-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS1
Absolute expanded uncertainty
:
6.0E-2 dB
IEC 61094-2:1992
Frequency : 31.5 Hz
Approved on 09 November 2006
KCDB ID :
EURAMET-AUV-FI-000006HG-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS2
Absolute expanded uncertainty
:
8.0E-2 dB
IEC 61094-2:1992
Frequency : 31.5 Hz
Approved on 09 November 2006
KCDB ID :
EURAMET-AUV-FI-000006HM-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS1
Absolute expanded uncertainty
:
5.0E-2 dB
IEC 61094-2:1992
Frequency : 4 kHz
Approved on 09 November 2006
KCDB ID :
EURAMET-AUV-FI-000006HI-1
