Results for: bulgeria Thermometry
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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)
Bulgaria, BIM (Bulgarian Institute of Metrology)
Hygrometers , Humidity : 50 %rh to 90 %rh
Relative humidity sensors
Absolute expanded uncertainty : 2 %rh
Comparison in a climatic chamber
Air temperature : 20 °C to 50 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
Hygrometers , Humidity : 10 %rh to 30 %rh
Other hygrometer
Absolute expanded uncertainty : 1.4 %rh
Comparison in a climatic chamber
Air temperature : 20 °C to 50 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
Hygrometers , Humidity : 50 %rh to 90 %rh
Other hygrometer
Absolute expanded uncertainty : 2.2 %rh
Comparison in a climatic chamber
Air temperature : 1 °C to 20 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
Hygrometers , Humidity : 30 %rh to 50 %rh
Other hygrometer
Absolute expanded uncertainty : 1.8 %rh
Comparison in a climatic chamber
Air temperature : 1 °C to 20 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 100 °C to 250 °C
Thermistors and other resistive thermometer
Absolute expanded uncertainty : 2.0E1 mK
Comparison
Stirred liquid bath : silicon oil
Approved on 03 November 2009
Institute service identifier : BIM/4.3
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 100 °C to 250 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty : 2.5E1 mK
Comparison
Stirred liquid bath : silicon oil
Approved on 03 November 2009
Institute service identifier : BIM/7.4
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 250 °C to 650 °C
IPRT
Absolute expanded uncertainty : 0.1 °C to 0.6 °C
Comparison
Furnace : metal block
Approved on 03 November 2009
Institute service identifier : BIM/3.4
Items for defining ITS-90 , Temperature : 234.3156 °C
Capsule-type SPRT
Absolute expanded uncertainty : 0.5 mK
Calibration at mercury triple point
Mercury apparatus
Approved on 27 March 2014
Institute service identifier : BIM/2.1
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -75 °C to 230 °C
Base metal thermocouple
Absolute expanded uncertainty : 0.6 °C
Comparison
Stirred liquid bath : alcohol, water or silicon oil
Pre-determined value of inhomogeneity included in the CMC entry
Approved on 03 November 2009
Institute service identifier : BIM/5.3
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -40 °C to 100 °C
Thermistors and other resistive thermometer
Absolute expanded uncertainty : 1.0E1 mK
Comparison
Stirred liquid bath : alcohol, water or silicon oil
Approved on 03 November 2009
Institute service identifier : BIM/4.2
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 50 °C to 100 °C
Temperature sensor with display unit
Absolute expanded uncertainty : 1.0E1 mK
Comparison
Stirred liquid bath : silicon oil
Approved on 03 November 2009
Institute service identifier : BIM/3.3
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 230 °C to 650 °C
Temperature sensor with display unit
Absolute expanded uncertainty : 0.1 °C to 0.6 °C
Comparison
Furnace : metal block
Approved on 03 November 2009
Institute service identifier : BIM/3.4
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -75 °C to -40 °C
Liquid-in-glass thermometer
Absolute expanded uncertainty : 2.0E1 mK
Comparison
Stirred liquid bath : alcohol
Approved on 03 November 2009
Institute service identifier : BIM/7.1
Items for defining ITS-90 , Temperature : 273.16 °C
Long-stem SPRT
Absolute expanded uncertainty : 0.2 mK
Calibration at water triple point
Temperature-controlled bath
Approved on 27 March 2014
Institute service identifier : BIM/2.2
Hygrometers , Humidity : 30 %rh to 50 %rh
Relative humidity sensors
Absolute expanded uncertainty : 1.8 %rh
Comparison in a climatic chamber
Air temperature : 1 °C to 20 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
Items for defining ITS-90 , Temperature : 231.928 °C
Long-stem SPRT
Absolute expanded uncertainty : 0.8 mK
Calibration at tin freezing point
3-zone furnace
Approved on 27 March 2014
Institute service identifier : BIM/2.2
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 1100 °C to 1200 °C
Noble metal thermocouple
Absolute expanded uncertainty : 1.5 °C
Comparison
Furnace : metal block
Pre-determined value of inhomogeneity included in the CMC entry
Approved on 03 November 2009
Institute service identifier : BIM/5.2
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -40 °C to 50 °C
IPRT
Absolute expanded uncertainty : 7 mK
Comparison
Stirred liquid bath : alcohol, oil
Approved on 03 November 2009
Institute service identifier : BIM/3.2
Items for defining ITS-90 , Temperature : 273.16 °C
Capsule-type SPRT
Absolute expanded uncertainty : 0.2 mK
Calibration at water triple point
Temperature-controlled bath
Approved on 27 March 2014
Institute service identifier : BIM/2.1
Items for defining ITS-90 , Temperature : 234.3156 °C
Long-stem SPRT
Absolute expanded uncertainty : 0.5 mK
Calibration at mercury triple point
Mercury apparatus
Approved on 27 March 2014
Institute service identifier : BIM/2.2

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