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CIPM MRA PARTICIPANTS
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CIPM MRA PARTICIPANTS
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General physics
Ionizing radiation
Chemical material
Chemical Analyte
Geographical location
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
Finland, MIKES (VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus)
Linear vibration , Charge sensitivity (phase shift) : 0 ° to 360 °
Accelerometer
Absolute expanded uncertainty : 1 °
ISO 16063-21 (comparison)
Frequency : 10 Hz to 1 kHz
Approved on 18 June 2014
Institute service identifier : MIKES/V21.3.1.2.A
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
Linear vibration , Voltage sensitivity (modulus)
Acceleration measuring chain
Relative expanded uncertainty : 1.5 %
ISO 16063-21 (comparison)
Frequency : 1.25 kHz to 4.5 kHz
Approved on 18 June 2014
Institute service identifier : MIKES/V21.4.1.1.B
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
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
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
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
Items for defining ITS-90 , Temperature : 660.323 °C
Aluminium cell
Absolute expanded uncertainty : 1.0E-2 °C
Direct comparison
Temperature-controlled furnace : 659 °C
Approved on 18 May 2004
Items for defining ITS-90 , Temperature : 29.7646 °C
Gallium cell
Absolute expanded uncertainty : 1.0E-3 °C
Direct comparison
Temperature-controlled bath : 29.7 °C
Approved on 18 May 2004
Items for defining ITS-90 , Temperature : 231.928 °C
Tin cell
Absolute expanded uncertainty : 9.0E-4 °C
Direct comparison
Temperature-controlled furnace : 231 °C
Approved on 18 May 2004
Items for defining ITS-90 , Temperature : -189.3442 °C
Long-stem SPRT
Absolute expanded uncertainty : 2.0E-3 °C
Fixed point
Standard: Argon cell Cryostat
Approved on 18 May 2004
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
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
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
Impedance (up to the MHz range) , Inductance: self inductance, intermediate values : 0.1 mH to 100 mH
Fixed inductor
Relative expanded uncertainty : 2.0E1 µH/H to 1.0E2 µH/H
Uncertainty table
{"row_1":{"col_1":"","col_2":"Method of measurement","col_3":"Reference standard used in calibration","col_4":"Frequency","col_5":"Relative expanded uncertainty"},"row_2":{"col_1":"100 mH","col_2":"Series resonance","col_3":"Capacitance standard","col_4":"1 kHz, 1.592 kHz","col_5":"20"},"row_3":{"col_1":"10 mH to 100 mH","col_2":"2 DVM","col_3":"Resistance standard","col_4":"50 Hz to 1000 Hz","col_5":"50"},"row_4":{"col_1":"100 µH to 10 mH","col_2":"2 DVM","col_3":"Resistance standard","col_4":"50 Hz to 2000 Hz","col_5":"20"}}
The expanded uncertainty given in this table are expressed in µH/H
2 DVM, series resonance
Frequency : 50 Hz to 2000 Hz, 1592 Hz
Approved on 11 May 2017
Institute service identifier : MIKES/93n
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
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
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"}}
The expanded uncertainty given in this table are expressed in µA/A
Voltage across resistance standard, comparison with digital multimeter
Approved on 06 August 2013
Institute service identifier : MIKES/68n
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

Select Metrology Area

General physics
Acoustics, Ultrasound, Vibration

This metrology area covers the fields of acoustics, ultrasound and vibration.

Electricity and Magnetism

This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

Length

This metrology area covers the fields of laser frequencies and dimensional metrology.

Mass and related quantities

This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

Photometry and Radiometry

Thermometry

Time and Frequency

Chemistry and Biology
Chemistry and Biology

This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation
Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.