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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)
Sweden, RISE (Research Institutes of Sweden AB)
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in S/m Absolute expanded uncertainty in % Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solution 3.00E-3 to 1.5 2 to 0.4
  • Mechanism for measurement service delivery : Calibration
  • Temperature range: 15 °C to 40 °C
  • Approved on 06 September 2012
  • Institute service identifier : F02
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
Electrolytic conductivity in µS/m Absolute expanded uncertainty in % Electrolytic conductivity in Absolute expanded uncertainty in
aqueous solution 20 to 3000 3 to 2
  • Mechanism for measurement service delivery : Calibration
  • Temperature range: 15 °C to 40 °C
  • Approved on 19 June 2014
  • Institute service identifier : F01
Density , Volume of solid : 1.2 cm3 to 12.5 cm3
Mass standard: 10 g to 0.1 kg
Absolute expanded uncertainty : 0.3 mm3 to 0.6 mm3
Hydrostatic weighing
Reference temperature : 21 °C
Approved on 21 October 2001
Mass , Mass : 10 g to 100 g
Mass standard
Absolute expanded uncertainty : 6 µg to 1.6E1 µg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 21 October 2001
Mass , Mass : 500 kg to 1000 kg
Mass standard
Absolute expanded uncertainty : 5 g to 1.5E1 g
Comparison in air
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 21 October 2001
Pressure , Differential pressure : 1 Pa to 1.50E4 Pa
Pressure gauge
Absolute expanded uncertainty
0.08 + 7E-05p

p pressure in Pa

The uncertainty is expressed in Pa

Gas
Uncertainty values range from 8.0E-02 Pa to 1.2 Pa
Approved on 02 July 2008
Pressure , Gauge pressure : 1.70E4 Pa to 7.00E5 Pa
Pressure balance
Absolute expanded uncertainty
1.0 + 3.0E-05p

p pressure in Pa

The uncertainty is expressed in Pa

Gas
Uncertainty values range from 1.6 Pa to 2.2E+01 Pa
Approved on 02 July 2008
Pressure , Absolute pressure : 5.00E-6 Pa to 5.00E-4 Pa
Vacuum gauge
Absolute expanded uncertainty
12E-02p

p pressure in Pa

The uncertainty is expressed in Pa

Gas
Uncertainty values range from 6E-07 Pa to 6E-05 Pa
Approved on 02 July 2008
Items for defining ITS-90 , Temperature : 962 °C to 1600 °C
Radiation thermometer
Absolute expanded uncertainty : 1.5 °C
Calibration against Gold fixed point blackbody
Working wavelength : 651 nm
Approved on 18 May 2004
Institute service identifier : 25
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -196 °C
Platinum resistance thermometers
Absolute expanded uncertainty : 5 mK
Comparison
Ambient temperature : (23 ± 1) °C
Approved on 03 November 2009
Institute service identifier : 27
Items for defining ITS-90 , Temperature : 660.323 °C
Long-stem SPRT and HTSPRT
Absolute expanded uncertainty : 4 mK
Fixed point (aluminium)
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 17
Items for defining ITS-90 , Temperature : 961.78 °C
Long-stem HTSPRT
Absolute expanded uncertainty : 1.0E1 mK
Fixed point (silver)
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 18
Items for defining ITS-90 , Temperature : 419.527 °C
Long-stem SPRT
Absolute expanded uncertainty : 2 mK
Fixed point (zinc)
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 16
Items for defining ITS-90 , Temperature : 419.527 °C
Zinc point
Absolute expanded uncertainty : 1.5 mK
Direct comparison
Ambient temperature : 23 °C
Approved on 20 May 2010
Institute service identifier : 7
Radio frequency measurements , Scattering parameters: reflection coefficient (Sii) in coaxials, real and imaginary : -1 to 1
One-port devices or two-port device
Absolute expanded uncertainty : 5.0E-3 to 6.0E-2
{"row_1":{"col_1":"","col_2":"abs(VRC)","col_3":"45 MHz","col_4":"1 GHz","col_5":"6 GHz","col_6":"10 GHz","col_7":"14 GHz","col_8":"18 GHz","col_9":"-","col_10":"-","col_11":"-","col_12":"-","col_13":"-","col_14":"-"},"row_2":{"col_1":"Type-N","col_2":"0","col_3":"0.005","col_4":"0.005","col_5":"0.007","col_6":"0.008","col_7":"0.010","col_8":"0.012","col_9":"-","col_10":"-","col_11":"-","col_12":"-","col_13":"-","col_14":"-"},"row_3":{"col_1":"Type-N","col_2":"0.1","col_3":"0.005","col_4":"0.005","col_5":"0.007","col_6":"0.009","col_7":"0.010","col_8":"0.012","col_9":"-","col_10":"-","col_11":"-","col_12":"-","col_13":"-","col_14":"-"},"row_4":{"col_1":"Type-N","col_2":"0.3","col_3":"0.006","col_4":"0.006","col_5":"0.008","col_6":"0.009","col_7":"0.011","col_8":"0.013","col_9":"-","col_10":"-","col_11":"-","col_12":"-","col_13":"-","col_14":"-"},"row_5":{"col_1":"Type-N","col_2":"1","col_3":"0.011","col_4":"0.011","col_5":"0.014","col_6":"0.017","col_7":"0.021","col_8":"0.024","col_9":"-","col_10":"-","col_11":"-","col_12":"-","col_13":"-","col_14":"-"},"row_6":{"col_1":"Connector","col_2":"abs(VRC)","col_3":"45 MHz","col_4":"1 GHz","col_5":"5 GHz","col_6":"6 GHz","col_7":"10 GHz","col_8":"14 GHz","col_9":"18 GHz","col_10":"22 GHz","col_11":"26.5 GHz","col_12":"33 GHz","col_13":"-","col_14":"-"},"row_7":{"col_1":"3.5 mm","col_2":"0","col_3":"0.009","col_4":"0.009","col_5":"0.012","col_6":"0.012","col_7":"0.014","col_8":"0.017","col_9":"0.019","col_10":"0.024","col_11":"0.029","col_12":"0.037","col_13":"-","col_14":"-"},"row_8":{"col_1":"3.5 mm","col_2":"0.1","col_3":"0.009","col_4":"0.009","col_5":"0.012","col_6":"0.012","col_7":"0.014","col_8":"0.017","col_9":"0.019","col_10":"0.024","col_11":"0.030","col_12":"0.038","col_13":"-","col_14":"-"},"row_9":{"col_1":"3.5 mm","col_2":"0.3","col_3":"0.010","col_4":"0.010","col_5":"0.013","col_6":"0.013","col_7":"0.015","col_8":"0.018","col_9":"0.020","col_10":"0.025","col_11":"0.031","col_12":"0.039","col_13":"-","col_14":"-"},"row_10":{"col_1":"3.5 mm","col_2":"1","col_3":"0.019","col_4":"0.020","col_5":"0.023","col_6":"0.024","col_7":"0.027","col_8":"0.031","col_9":"0.034","col_10":"0.040","col_11":"0.047","col_12":"0.060","col_13":"-","col_14":"-"},"row_11":{"col_1":"Connector","col_2":"abs(VRC)","col_3":"45 MHz","col_4":"1 GHz","col_5":"5 GHz","col_6":"6 GHz","col_7":"10 GHz","col_8":"14 GHz","col_9":"18 GHz","col_10":"22 GHz","col_11":"26.5 GHz","col_12":"30 GHz","col_13":"35 GHz","col_14":"40 GHz"},"row_12":{"col_1":"2.92 mm","col_2":"0","col_3":"0.011","col_4":"0.011","col_5":"0.012","col_6":"0.013","col_7":"0.015","col_8":"0.017","col_9":"0.018","col_10":"0.019","col_11":"0.020","col_12":"0.021","col_13":"0.022","col_14":"0.023"},"row_13":{"col_1":"2.92 mm","col_2":"0.1","col_3":"0.011","col_4":"0.011","col_5":"0.012","col_6":"0.013","col_7":"0.015","col_8":"0.017","col_9":"0.018","col_10":"0.019","col_11":"0.020","col_12":"0.021","col_13":"0.022","col_14":"0.024"},"row_14":{"col_1":"2.92 mm","col_2":"0.3","col_3":"0.012","col_4":"0.012","col_5":"0.014","col_6":"0.014","col_7":"0.016","col_8":"0.018","col_9":"0.020","col_10":"0.021","col_11":"0.022","col_12":"0.023","col_13":"0.024","col_14":"0.026"},"row_15":{"col_1":"2.92 mm","col_2":"1","col_3":"0.022","col_4":"0.022","col_5":"0.025","col_6":"0.026","col_7":"0.030","col_8":"0.034","col_9":"0.036","col_10":"0.038","col_11":"0.041","col_12":"0.042","col_13":"0.045","col_14":"0.048"}}
The expanded uncertainties given in this table are dimensionless
Vector network analyser
Frequency : 45 MHz to 40 GHz
Connector : Type N, 3.5 mm, 2.92 mm
Minimum and maximum uncertainty within range, see table for details. The expanded uncertainty refers to a complex quantity, therefore k = 2.45
Approved on 06 August 2013
Institute service identifier : 606c
Impedance (up to the MHz range) , Capacitance: dissipation factor for low loss capacitors : 1.00E-6 to 0.01
Standard capacitor
Absolute expanded uncertainty : 3.0E-6 to 2.0E-4
{"row_1":{"col_1":"","col_2":"Dissipation factor","col_3":"50 Hz","col_4":"1 kHz"},"row_2":{"col_1":"1 pF","col_2":"< 2E-04","col_3":"-","col_4":"1E-05"},"row_3":{"col_1":"10 pF","col_2":"< 2E-04","col_3":"-","col_4":"2E-06"},"row_4":{"col_1":"100 pF","col_2":"< 2E-04","col_3":"-","col_4":"3E-06"},"row_5":{"col_1":"1 nF","col_2":"< 2E-04","col_3":"-","col_4":"3E-06"},"row_6":{"col_1":"10 nF","col_2":"< 1E-03","col_3":"1.5E-05","col_4":"1.5E-05"},"row_7":{"col_1":"100 nF","col_2":"< 1E-03","col_3":"2.5E-05","col_4":"2.5E-05"},"row_8":{"col_1":"1 µF","col_2":"< 1E-03","col_3":"-","col_4":"5E-05"},"row_9":{"col_1":"10 µF","col_2":"< 1E-03","col_3":"-","col_4":"2E-04"}}
The expanded uncertainties given in this table are dimensionless
Transformer bridge
Capacitance : 1 pF to 10 µF
Frequency : 50 Hz, 1 kHz
Approved on 06 August 2013
Institute service identifier : 43
Impedance (up to the MHz range) , Capacitance: dissipation factor for low loss capacitors : 1.00E-6 to 2.00E-5
Standard capacitor
Absolute expanded uncertainty : 2.0E-6
Transformer bridge with guard ring capacitor
Capacitance : 10 pF
Frequency : 500 Hz to 1 kHz
Approved on 06 August 2013
Institute service identifier : 42
High voltage and current , High voltage impedance: burden: argument : 0 to 1
Instrument transformer burden: power factor
Absolute expanded uncertainty : 1.0E-2
Vector meter
Frequency : 50 Hz
Voltage : 0.1 V to 380 V
Current : 3 mA to 10 A
Approved on 07 February 2019
Institute service identifier : 497b
High voltage and current , High AC current: current transformer ratio error : 0 to 0.02
Current transformer bridge: ratio error e
Absolute expanded uncertainty
3E-06 + 0.012e

The uncertainty is expressed in

Generation of known reference error
Frequency : 50 Hz
Current : 0.1 A to 10 A
Approved on 06 August 2013
Institute service identifier : 519
DC voltage (up to 1100 V) , DC voltage meters: low values : 1.00E-7 V to 1.00E-3 V
Nano-voltmeter, micro-voltmeter
Absolute expanded uncertainty : 2.0E1 nV
Direct comparison
Approved on 06 August 2013
Institute service identifier : 5.1

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