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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)
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
:
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
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
CMC 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
CMC 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
CMC 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
CMC 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
CMC ID :
EURAMET-AUV-FI-000006HI-1
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
CMC ID :
EURAMET-T-FI-0000096G-1
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
CMC ID :
EURAMET-T-FI-0000096D-1
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
CMC ID :
EURAMET-T-FI-0000096E-1
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
CMC ID :
EURAMET-T-FI-0000096I-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
Complex geometry ,
Screw standards
:
3 mm to 150 mm
Thread plug, plain, pitch diameter
Absolute expanded uncertainty
:
2 µm
3-wire method, length measuring machine
Approved on 21 October 2001
Institute service identifier : MIKES/43
CMC ID :
EURAMET-L-FI-00000ALM-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
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
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
