Results for: NSAI National Metrology Laboratory
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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)
Ireland, NSAI NML (NSAI National Metrology Laboratory)
Sound calibrators , Sound pressure level : 84 dB (reference: 20 µPa)
Sound calibrator, single frequency 1 kHz
Absolute expanded uncertainty : 0.26 dB
Calibrated measurement microphone
Microphone type : WS2P (IEC 61094-4)
Approved on 31 March 2011
Institute service identifier : NMLI_A001
Sound calibrators , Sound pressure level : 124 dB (reference: 20 µPa)
Pistonphone, single frequency 250 Hz
Absolute expanded uncertainty : 0.12 dB
Calibrated measurement microphone
Microphone type : WS2P (IEC 61094-4)
Approved on 31 March 2011
Institute service identifier : NMLI_A003
Sound measuring instruments , Sound pressure response level : 94 dB (reference: 20 µPa)
Sound level meter
Absolute expanded uncertainty : 0.3 dB
IEC 61672-1, IEC 60651
Frequency : 125 Hz and 1 kHz
Approved on 31 March 2011
Institute service identifier : NMLI_A004
Frequency , Frequency : 10 MHz
Local frequency standard
Relative expanded uncertainty : 5.0E-13 Hz/Hz
Phase difference measurement
Averaging time : 1 day
Comparison made with NPL standard using CV method
Approved on 02 May 2006
Institute service identifier : NSAI NML/1
Frequency , Frequency : 1000 Hz to 9999 Hz
General frequency source
Absolute expanded uncertainty : 2 µHz to 1 µHz
Frequency counter
Averaging time : 1000 s
Approved on 02 May 2006
Institute service identifier : NSAI NML/6
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -10 °C to 100 °C
Liquid in glass thermometer
Absolute expanded uncertainty : 9 mK
Comparison
Stirred liquid bath : ice bath, water, silicone oil
Ambient temperature : (20 ± 1) °C
Approved on 03 November 2009
Institute service identifier : T 70
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -40 °C to -10 °C
Liquid in glass thermometer
Absolute expanded uncertainty : 2.5E1 mK
Comparison
Stirred liquid bath : acetone
Ambient temperature : (20 ± 1) °C
Approved on 03 November 2009
Institute service identifier : T 70
Items for defining ITS-90 , Temperature : 273.16 K
Water triple point cell
Absolute expanded uncertainty : 0.32 mK
Direct comparison
Ambient temperature : (20 ± 1) °C
Temperature-controlled bath
Approved on 20 January 2010
Institute service identifier : T 10
Items for defining ITS-90 , Temperature : 0.01 °C to 29.7646 °C
Long-stem SPRT
Absolute expanded uncertainty : 2 mK
Calibration at fixed points
Temperature-controlled bath : (20 ± 1) °C
Approved on 17 January 2013
Institute service identifier : T 33
Hygrometers , Humidity : 30 °C to 75 °C
Dew-point hygrometers
Absolute expanded uncertainty : 0.2 °C
Relative humidity generator
Approved on 14 December 2018
Institute service identifier : HP-NM-06
Mass , Mass : 10 kg to 20 kg
Mass standard
Absolute expanded uncertainty : 3.4 mg to 6.8 mg
Comparison in air
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 21 October 2001
Linear dimensions , End standards : 75 mm to 100 mm
Gauge block: central length
Absolute expanded uncertainty : 1.8E2 nm
Mechanical comparison, comparator
Temperature : 20 °C ± 0.5 °C
According to ISO 3650
Approved on 03 August 2011
Institute service identifier : NSAI NML/1
Linear dimensions , End standards : 50 mm to 75 mm
Gauge block: central length
Absolute expanded uncertainty : 1.4E2 nm
Mechanical comparison, comparator
Temperature : 20 °C ± 0.5 °C
According to ISO 3650
Approved on 03 August 2011
Institute service identifier : NSAI NML/1
Linear dimensions , Line standards : 50 mm to 100 mm
Precision line scale
Absolute expanded uncertainty : 3.3 µm
Laser system and sip horizontal measuring machine
Temperature : 20 °C ± 0.5 °C
Approved on 08 October 2012
Institute service identifier : NSAI NML/7
Linear dimensions , Diameter standards : 1 mm to 14 mm
Internal cylinder (ring): diameter
Absolute expanded uncertainty : 1.2 µm
1-D length measuring machine
Temperature : 20 °C ± 0.5 °C
Approved on 08 October 2012
Institute service identifier : NSAI NML/2
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 250 °C to 500 °C
IPRT
Absolute expanded uncertainty : 3.0E1 mK
Comparison
Ambient temperature : (20 ± 1) °C
Temperature-controlled salt bath
Approved on 03 November 2009
Institute service identifier : T 41
AC voltage (up to the MHz range) , AC voltage up to 1000 V: meters : 0.06 V to 1000 V
AC voltmeter
Relative expanded uncertainty : 2.0E1 µV/V to 1.1E3 µV/V
{"row_1":{"col_1":"","col_2":"10 Hz","col_3":"20 Hz","col_4":"30 Hz","col_5":"30 Hz to 100 Hz","col_6":"100 Hz to 1 kHz","col_7":"1 kHz to 20 kHz","col_8":"20 kHz to 50 kHz","col_9":"50 kHz to 100 kHz","col_10":"100 kHz to 300 kHz","col_11":"300 kHz to 500 kHz","col_12":"500 kHz to 700 kHz","col_13":"0.7 MHz to 1 MHz"},"row_2":{"col_1":"60 mV to 100 mV","col_2":"500","col_3":"300","col_4":"300","col_5":"300","col_6":"300","col_7":"300","col_8":"400","col_9":"600","col_10":"700","col_11":"900","col_12":"1100","col_13":"1100"},"row_3":{"col_1":"100 mV to 200 mV","col_2":"210","col_3":"130","col_4":"130","col_5":"120","col_6":"110","col_7":"120","col_8":"130","col_9":"220","col_10":"300","col_11":"390","col_12":"490","col_13":"580"},"row_4":{"col_1":"0.2 V to 0.3 V","col_2":"150","col_3":"130","col_4":"130","col_5":"110","col_6":"110","col_7":"110","col_8":"130","col_9":"140","col_10":"300","col_11":"340","col_12":"460","col_13":"550"},"row_5":{"col_1":"0.3 V to 0.7 V","col_2":"120","col_3":"100","col_4":"100","col_5":"80","col_6":"80","col_7":"80","col_8":"100","col_9":"120","col_10":"290","col_11":"330","col_12":"450","col_13":"540"},"row_6":{"col_1":"0.7 V to 1 V","col_2":"110","col_3":"70","col_4":"70","col_5":"70","col_6":"70","col_7":"70","col_8":"80","col_9":"100","col_10":"170","col_11":"270","col_12":"340","col_13":"450"},"row_7":{"col_1":"1 V to 2 V","col_2":"100","col_3":"30","col_4":"30","col_5":"20","col_6":"20","col_7":"30","col_8":"50","col_9":"70","col_10":"160","col_11":"250","col_12":"320","col_13":"440"},"row_8":{"col_1":"2 V to 3 V","col_2":"100","col_3":"30","col_4":"30","col_5":"20","col_6":"20","col_7":"30","col_8":"50","col_9":"70","col_10":"160","col_11":"250","col_12":"320","col_13":"450"},"row_9":{"col_1":"3 V to 5 V","col_2":"100","col_3":"30","col_4":"30","col_5":"30","col_6":"30","col_7":"30","col_8":"50","col_9":"70","col_10":"160","col_11":"260","col_12":"330","col_13":"440"},"row_10":{"col_1":"5 V to 10 V","col_2":"100","col_3":"40","col_4":"40","col_5":"30","col_6":"30","col_7":"40","col_8":"50","col_9":"70","col_10":"160","col_11":"260","col_12":"340","col_13":"450"},"row_11":{"col_1":"10 V to 20 V","col_2":"100","col_3":"40","col_4":"40","col_5":"30","col_6":"30","col_7":"30","col_8":"50","col_9":"70","col_10":"160","col_11":"250","col_12":"320","col_13":"440"},"row_12":{"col_1":"20 V to 30 V","col_2":"110","col_3":"60","col_4":"60","col_5":"60","col_6":"60","col_7":"60","col_8":"70","col_9":"90","col_10":"120","col_11":"250","col_12":"320","col_13":"440"},"row_13":{"col_1":"30 V to 60 V","col_2":"110","col_3":"60","col_4":"60","col_5":"60","col_6":"60","col_7":"60","col_8":"70","col_9":"80","col_10":"-","col_11":"-","col_12":"-","col_13":"-"},"row_14":{"col_1":"60 V to 100 V","col_2":"110","col_3":"70","col_4":"70","col_5":"60","col_6":"60","col_7":"60","col_8":"70","col_9":"90","col_10":"-","col_11":"-","col_12":"-","col_13":"-"},"row_15":{"col_1":"100 V to 200 V","col_2":"120","col_3":"70","col_4":"70","col_5":"70","col_6":"60","col_7":"60","col_8":"70","col_9":"90","col_10":"-","col_11":"-","col_12":"-","col_13":"-"},"row_16":{"col_1":"200 V to 300 V","col_2":"150","col_3":"110","col_4":"110","col_5":"110","col_6":"110","col_7":"110","col_8":"120","col_9":"130","col_10":"-","col_11":"-","col_12":"-","col_13":"-"},"row_17":{"col_1":"300 V to 600 V","col_2":"170","col_3":"120","col_4":"120","col_5":"110","col_6":"110","col_7":"110","col_8":"120","col_9":"130","col_10":"-","col_11":"-","col_12":"-","col_13":"-"},"row_18":{"col_1":"1000 V to 600 V","col_2":"170","col_3":"120","col_4":"120","col_5":"110","col_6":"110","col_7":"110","col_8":"120","col_9":"130","col_10":"-","col_11":"-","col_12":"-","col_13":"-"}}
The uncertainties in the table are expressed in µV/V
Characterized AC Source
Frequency : 10 Hz to 1 MHz
Approved on 07 April 2016
Institute service identifier : 154C
DC resistance , DC resistance standards and sources: intermediate values : 10 Ω to 1.00E6 Ω
Fixed resistor, resistance box
Relative expanded uncertainty : 0.3 µΩ/Ω to 1.0E1 µΩ/Ω
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µΩ/Ω)"},"row_2":{"col_1":"10 Ω","col_2":"0.3"},"row_3":{"col_1":"25 Ω","col_2":"1"},"row_4":{"col_1":"100 Ω","col_2":"0.4"},"row_5":{"col_1":"1 kΩ","col_2":"0.5"},"row_6":{"col_1":"10 kΩ","col_2":"0.4"},"row_7":{"col_1":"100 kΩ","col_2":"1"},"row_8":{"col_1":"1 MΩ","col_2":"2"},"row_9":{"col_1":"1 Ω to 10 Ω","col_2":"(1/<I>R</I> + 1), <I>R</I> in Ω"},"row_10":{"col_1":"10 Ω to 100 Ω","col_2":"(20/<I>R</I> + 1), <I>R</I> in Ω"},"row_11":{"col_1":"100 Ω to 1 kΩ","col_2":"(0.3/<I>R</I> + 2), <I>R</I> in kΩ"},"row_12":{"col_1":"1 kΩ to 10 kΩ","col_2":"(5/<I>R</I> + 5), <I>R</I> in kΩ"},"row_13":{"col_1":"10 kΩ to 100 kΩ","col_2":"(20/<I>R</I> + 3), <I>R</I> in kΩ"},"row_14":{"col_1":"100 kΩ to 1 MΩ","col_2":"(0.2/<I>R</I> + 5), <I>R</I> in MΩ"}}
Resistance box, R
DCC resistance bridge, potentiometric bridge
Oil temperature : 20 °C to 25 °C
Measurement current : 3 mA to 10 mA
Measurement voltage : 5 V to 10 V
Approved on 06 January 2015
Institute service identifier : 27C
Impedance (up to the MHz range) , Capacitance for dielectric capacitors : 100 pF to 1.00E6 pF
Standard capacitor: standard sealed gas-filled capacitor
Relative expanded uncertainty : 2.0E1 µF/F to 6.0E2 µF/F
{"row_1":{"col_1":"","col_2":"1 kHz","col_3":"0.1 kHz to 20 kHz"},"row_2":{"col_1":"100 pF","col_2":"30","col_3":"(50 + 2<I>f</I><SUP>2</SUP>), <I>f</I> in kHz"},"row_3":{"col_1":"1 nF","col_2":"50","col_3":"50"},"row_4":{"col_1":"10 nF","col_2":"20","col_3":"-"},"row_5":{"col_1":"100 nF","col_2":"20","col_3":"-"},"row_6":{"col_1":"1 µF","col_2":"200","col_3":"-"},"row_7":{"col_1":"0.1 nF to 10 nF","col_2":"-","col_3":"(50 + 2<I>f</I><SUP>2</SUP>), <I>f</I> in kHz"},"row_8":{"col_1":"10 nF to 100 nF","col_2":"-","col_3":"(70 + 2<I>f</I><SUP>2</SUP>), <I>f</I> in kHz"},"row_9":{"col_1":"0.1 µF to 1 µF","col_2":"-","col_3":"(200 + 2<I>f</I><SUP>2</SUP>), <I>f</I> in kHz"}}
The expanded uncertainties given in this table are expressed in µF/F
Substitution measurement
Frequency : 0.1 kHz to 20 kHz
Approved on 06 January 2015
Institute service identifier : 102C
DC voltage (up to 1100 V) , DC voltage sources: single values : 1 V to 10 V
Solid state voltage standard
Relative expanded uncertainty : 0.3 µV/V to 0.6 µV/V
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µV/V)"},"row_2":{"col_1":"10 V","col_2":"0.3"},"row_3":{"col_1":"1.018 V","col_2":"0.6"},"row_4":{"col_1":"1 V","col_2":"0.6"}}
Comparison with group of solid state voltage standards, potentiometric measurement
Nominal value : 10 V, 1.018 V, 1 V
Approved on 06 January 2015
Institute service identifier : 1C

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