Results for: RISE Research Institutes of Sweden AB
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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
Time scale difference , Time scale difference : -1 s to 1 s
Remote clock vs UTC
Absolute expanded uncertainty : 2.4E1 ns
GPS CV
Prediction time : 20 days
Distance : < 2000 km
Fractional part of modulo 1 second difference, integer part can be provided also
Approved on 18 November 2009
Institute service identifier : SP-Metod 2821
Frequency , Frequency : 1 Hz to 2.70E9 Hz
General frequency source
Relative expanded uncertainty : 6.0E-11 Hz/Hz
Direct frequency measurement
Averaging time : 1000 s
For square wave or pulsed signal
Approved on 18 November 2009
Institute service identifier : SP-Metod 2815
Frequency , Frequency : 1 Hz to 1.00E7 Hz
General frequency source
Relative expanded uncertainty : 2.0E-13 Hz/Hz
Phase time measurement
Averaging time : 1 day
For square wave or pulsed signal
Approved on 18 November 2009
Institute service identifier : SP-Metod 2818
Frequency , Frequency : 10 MHz
Local frequency standard
Relative expanded uncertainty : 2.0E-13 Hz/Hz
Phase time measurement
Averaging time : 1 day
For sine wave signal
Approved on 18 November 2009
Institute service identifier : SP-Metod 2818
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
Form , Flatness standards : 0 µm to 2 µm
Optical flat: surface flatness
Absolute expanded uncertainty : 0.1 µm
Michelson interferometer
Diameter : up to 50 mm
Approved on 21 October 2001
Institute service identifier : RISE/26
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 1100 °C to 1200 °C
Digital thermometers: thermocouple
Absolute expanded uncertainty : 0.8 °C
Comparison
Tube furnace : 3-zone or 5-zone CrFeAl heating coil
Approved on 19 March 2012
Institute service identifier : 60
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 5 °C to 30 °C
Digital thermometers: IPRT or SPRT
Absolute expanded uncertainty : 2 mK
Comparison
Comparison bath : water
Approved on 19 March 2012
Institute service identifier : 61
Items for defining ITS-90 , Temperature : 660.323 °C
Aluminium point
Absolute expanded uncertainty : 4 mK
Direct comparison
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 8
Items for defining ITS-90 , Temperature : 156.5985 °C
Indium point
Absolute expanded uncertainty : 0.9 mK
Direct comparison
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 5
Items for defining ITS-90 , Temperature : -189.3442 °C
Argon point
Absolute expanded uncertainty : 1 mK
Direct comparison
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 1
Items for defining ITS-90 , Temperature : 231.928 °C
Tin point
Absolute expanded uncertainty : 0.9 mK
Direct comparison
Ambient temperature : 23 °C
Approved on 18 May 2004
Institute service identifier : 6
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
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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
High voltage and current , High AC voltage: peak values : 20 kV to 400 kV
Peak voltage responding measuring system, AC voltmeter, AC voltaqe source
Relative expanded uncertainty : 0.2 mV/V to 1 mV/V
Comparison with reference
Frequency : 60 Hz to 300 Hz
Approved on 07 February 2019
Institute service identifier : 501

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