Results for: Danish Technological Institute
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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)
Denmark, DTI (Danish Technological Institute)
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 200 °C to 550 °C
Industrial PRT
Absolute expanded uncertainty : 1.1E-2 °C to 1.4E-2 °C
Comparison
Comparison in stirred bath : salt
Approved on 03 November 2009
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 70 °C to 90 °C
Air temperature sensor
Absolute expanded uncertainty : 0.27 °C to 0.33 °C
Comparison
Comparison in climatic chamber : air
Approved on 17 August 2017
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 550 °C to 1100 °C
TC nobel metal
Absolute expanded uncertainty : 0.86 °C
Comparison
Comparison in 3-zone furnace, atmosphere : air
Approved on 03 November 2009
Fluid flow , Volume of liquid : 1 L to 2.50E5 L
Water meter, Mass meter
Relative expanded uncertainty : 5.0E-2 % to 0.4 %
Coriolis
Liquid : water
Also valid for mass in the same area (1 to 250000 kg) with uncertainty 0.05 to 0.40%.
Approved on 11 September 2019
Institute service identifier : DK26
Fluid flow , Gas flow speed : 0.3 m/s to 30 m/s
Air speed anemometers
Absolute expanded uncertainty : 8.3E-3 m/s to 0.15 m/s
Pulse, electrical output or visual reading
Fluid : air
Approved on 11 September 2019
Institute service identifier : DK39
Fluid flow , Gas flow speed : 0.05 m/s to 0.7 m/s
Air speed anemometers
Absolute expanded uncertainty : 2.0E-2 m/s
Pulse, electrical output or visual reading
Fluid : air
Approved on 11 September 2019
Institute service identifier : DK38
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 disseminating ITS-90 and PLTS 2000 , Temperature : -75 °C to -40 °C
Industrial PRT
Absolute expanded uncertainty : 3.4E-2 °C to 6.0E-3 °C
Comparison
Comparison in stirred bath : block in alcohol
Approved on 03 November 2009
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 80 °C to 200 °C
Industrial PRT
Absolute expanded uncertainty : 8.0E-3 °C to 1.1E-2 °C
Comparison
Comparison in stirred bath : oil
Approved on 03 November 2009
Items for defining ITS-90 , Temperature : 0.01 °C to 156.599 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C to 2.5E-3 °C
Fixed points
Interpolation: ITS 90 formula
Approved on 17 January 2013
Items for defining ITS-90 , Temperature : 0.01 °C to 660.323 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C to 5.0E-3 °C
Fixed points
Interpolation: ITS 90 formula
Approved on 17 January 2013
Items for defining ITS-90 , Temperature : -38.8344 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C
Fixed points
Standard: Mercury cell
Approved on 17 August 2017
Fluid flow , Volume water flow rate : 1.40E-3 L/s to 11 L/s
 Flow meter
Relative expanded uncertainty : 5.0E-2 %
Pulse, electrical output or visual reading
Liquid : water
Also valid for mass flow in the same volume flow area with uncertainty 0.05%.
Approved on 11 September 2019
Institute service identifier : DK24
Linear dimensions , Diameter standards : 1 mm to 100 mm
External cylinder (plug, piston, pin): diameter L
Absolute expanded uncertainty : 0.5 µm to 0.65 µm
Q[0.5 µm, 4E-06 L]
1-D contacting probe
Approved on 06 December 2012
Institute service identifier : DTI/17
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 10 °C to 80 °C
Industrial PRT
Absolute expanded uncertainty : 6.0E-3 °C to 8.0E-3 °C
Comparison
Comparison in stirred bath : water
Approved on 03 November 2009
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -40 °C to 0 °C
Air temperature sensor
Absolute expanded uncertainty : 0.2 °C to 0.18 °C
Comparison
Comparison in climatic chamber : air
Approved on 17 August 2017
Items for defining ITS-90 , Temperature : 0.01 °C to 419.527 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C to 2.5E-3 °C
Fixed points
Interpolation: ITS 90 formula
Approved on 17 January 2013
Items for defining ITS-90 , Temperature : -38.8344 °C to 29.7646 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C
Fixed points
Interpolation: ITS 90 formula
Approved on 17 August 2017
Items for defining ITS-90 , Temperature : 0.01 °C to 29.7646 °C
Long-stem SPRT
Absolute expanded uncertainty : 1.0E-3 °C
Fixed points
Interpolation: ITS 90 formula
Approved on 17 January 2013
Items for defining ITS-90 , Temperature : 0.01 °C
Long-stem SPRT
Absolute expanded uncertainty : 0.11 mK
Calibration at water triple point
Ice bath
Approved on 20 January 2010

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