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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
CMC ID :
EURAMET-M-FI-000009FE-1
Finland, MIKES (VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus)
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
CMC ID :
EURAMET-AUV-FI-000006HG-1
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
CMC ID :
EURAMET-T-FI-0000096V-1
Items for defining ITS-90 ,
Temperature
:
419.527 °C
Long-stem SPRT
Absolute expanded uncertainty
:
2.0E-3 °C
Fixed point
Temperature-controlled furnace : 419 °C
Standard: Zinc cell
Approved on 18 May 2004
CMC ID :
EURAMET-T-FI-0000096K-1
Items for disseminating ITS-90 and PLTS 2000 ,
Temperature
:
-80 °C to 10 °C
Industrial Platinum Resistance Thermometer
Absolute expanded uncertainty
:
7.0E-3 °C
Comparison
Bath
Approved on 03 November 2009
CMC ID :
EURAMET-T-FI-0000096O-1
Mass ,
Mass
:
50 kg to 2000 kg
Mass standard
Absolute expanded uncertainty
:
1.0E2 mg to 3.0E3 mg
Comparison in air
Uncertainty scales with measurand level
Approved on 11 June 2017
CMC ID :
EURAMET-M-FI-000009FF-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
CMC ID :
EURAMET-M-FI-000009FP-1
Pressure ,
Absolute pressure
:
1.50E4 Pa to 3.50E5 Pa
Absolute pressure gauge
Absolute expanded uncertainty
1 + 2.5E-05p p pressure in Pa
The uncertainty is expressed in Pa
Gas medium
Uncertainty values range from 1.4 Pa to 9.8 Pa
Approved on 11 October 2005
CMC ID :
EURAMET-M-FI-000009F3-1
Pressure ,
Gauge pressure
:
5.00E5 Pa to 5.00E7 Pa
Pressure balance
Absolute expanded uncertainty
12 + 2.5E-05p p pressure in Pa
The uncertainty is expressed in Pa
Oil medium
Uncertainty values range from 2.4E+01 Pa to 1.3E+03 Pa
Approved on 11 October 2005
CMC ID :
EURAMET-M-FI-000009FA-1
Pressure ,
Gauge pressure
:
2.00E8 Pa to 5.00E8 Pa
Pressure balance
Absolute expanded uncertainty
1.2E-04p p pressure in Pa
The uncertainty is expressed in Pa
Oil medium
Uncertainty values range from 2.4E+04 Pa to 6.0E+04 Pa
Approved on 11 October 2005
CMC ID :
EURAMET-M-FI-000009FD-1
Radio frequency measurements ,
Scattering parameters: transmission coefficient (Sij) in coaxials, magnitude
:
0 dB to 80 dB
Passive device
Absolute expanded uncertainty
:
1.6E-2 dB to 0.18 dB
Uncertainty table
{"row_1":{"col_1":"","col_2":"0.01 GHz","col_3":"0.100 GHz","col_4":"1 GHz","col_5":"6 GHz","col_6":"10.000 GHz","col_7":"14.000 GHz","col_8":"18.000 GHz"},"row_2":{"col_1":"0 dB","col_2":"0.016","col_3":"0.016","col_4":"0.025","col_5":"0.055","col_6":"0.057","col_7":"0.057","col_8":"0.057"},"row_3":{"col_1":"10 dB","col_2":"0.026","col_3":"0.026","col_4":"0.032","col_5":"0.059","col_6":"0.060","col_7":"0.060","col_8":"0.060"},"row_4":{"col_1":"20 dB","col_2":"0.043","col_3":"0.043","col_4":"0.047","col_5":"0.068","col_6":"0.070","col_7":"0.070","col_8":"0.070"},"row_5":{"col_1":"30 dB","col_2":"0.062","col_3":"0.062","col_4":"0.065","col_5":"0.082","col_6":"0.083","col_7":"0.083","col_8":"0.083"},"row_6":{"col_1":"40 dB","col_2":"0.082","col_3":"0.082","col_4":"0.084","col_5":"0.097","col_6":"0.099","col_7":"0.099","col_8":"0.099"},"row_7":{"col_1":"50 dB","col_2":"0.101","col_3":"0.101","col_4":"0.103","col_5":"0.114","col_6":"0.121","col_7":"0.121","col_8":"0.121"},"row_8":{"col_1":"60 dB","col_2":"0.121","col_3":"0.121","col_4":"0.123","col_5":"0.132","col_6":"0.181","col_7":"0.181","col_8":"0.181"},"row_9":{"col_1":"70 dB","col_2":"0.141","col_3":"0.141","col_4":"0.143","col_5":"0.151","col_6":"-","col_7":"-","col_8":"-"},"row_10":{"col_1":"80 dB","col_2":"0.165","col_3":"0.165","col_4":"0.166","col_5":"0.173","col_6":"-","col_7":"-","col_8":"-"}}
Vector network analyser
Frequency : 10 MHz to 18 GHz
Connector : Type N
S11 and S22 : < 0.2
At 10 MHz, S11 and S22 < 0.1
Approved on 06 August 2013
Institute service identifier : MIKES/204
CMC ID :
EURAMET-EM-FI-00000E6G-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
CMC 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
CMC 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
CMC 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
CMC ID :
EURAMET-EM-FI-00000E6L-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
CMC ID :
EURAMET-EM-FI-00000E83-1
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
CMC 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
CMC 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
CMC 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
CMC ID :
EURAMET-TF-FI-000005B6-1
