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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)
Bosnia and Herzegovina, IMBIH (Institute of Metrology of Bosnia and Herzegovina)
AC current , AC current up to 100 A: meters : 1.00E-4 A to 10 A
AC ammeter, multimeter
Relative expanded uncertainty : 0.36 mA/A to 3.5 mA/A
{"row_1":{"col_1":"","col_2":"50 Hz","col_3":"1 kHz","col_4":"5 kHz","col_5":"10 kHz"},"row_2":{"col_1":"100 µA","col_2":"0.50","col_3":"0.50","col_4":"0.50","col_5":"0.55"},"row_3":{"col_1":"190 µA","col_2":"0.45","col_3":"0.45","col_4":"0.45","col_5":"0.45"},"row_4":{"col_1":"0.2 mA","col_2":"1.30","col_3":"1.30","col_4":"1.30","col_5":"1.30"},"row_5":{"col_1":"1 mA","col_2":"0.45","col_3":"0.45","col_4":"0.45","col_5":"0.45"},"row_6":{"col_1":"1.9 mA","col_2":"0.36","col_3":"0.36","col_4":"0.36","col_5":"0.36"},"row_7":{"col_1":"2 mA","col_2":"1.30","col_3":"1.30","col_4":"1.30","col_5":"1.30"},"row_8":{"col_1":"10 mA","col_2":"0.45","col_3":"0.45","col_4":"0.45","col_5":"0.45"},"row_9":{"col_1":"19 mA","col_2":"0.36","col_3":"0.36","col_4":"0.36","col_5":"0.36"},"row_10":{"col_1":"20 mA","col_2":"1.30","col_3":"1.30","col_4":"1.30","col_5":"1.30"},"row_11":{"col_1":"100 mA","col_2":"0.45","col_3":"0.45","col_4":"0.45","col_5":"0.45"},"row_12":{"col_1":"190 mA","col_2":"0.36","col_3":"0.36","col_4":"0.36","col_5":"0.36"},"row_13":{"col_1":"0.2 A","col_2":"1.60","col_3":"1.60","col_4":"1.70","col_5":"1.70"},"row_14":{"col_1":"1 A","col_2":"0.80","col_3":"0.80","col_4":"0.90","col_5":"0.90"},"row_15":{"col_1":"1.9 A","col_2":"0.71","col_3":"0.71","col_4":"0.82","col_5":"0.82"},"row_16":{"col_1":"2 A","col_2":"1.80","col_3":"1.80","col_4":"3.50","col_5":"3.50"},"row_17":{"col_1":"10 A","col_2":"1.00","col_3":"1.00","col_4":"2.70","col_5":"2.70"}}
The expanded uncertainties in the table are expressed in mA/A
Direct comparison with a reference standard
Frequency : 50 Hz to 10 kHz
Approved on 11 May 2017
Institute service identifier : IMBiH/15
Items for disseminating ITS-90 and PLTS 2000 , Temperature : -40 °C to 4 °C
IPRT
Absolute expanded uncertainty : 9 mK
Calibration by comparison at one temperature
Stirred liquid bath : ethanol
Uncertainty at the calibration point. Effect of hysteresis added to CMC budget.
Approved on 20 February 2019
Fluid flow , Volume of liquid : 1 L to 50 L
Standard test measures and overflow pipettes
Relative expanded uncertainty : 2.0E-2 %
Gravimetric
Liquid : water
Reference temperature : 20 °C
Approved on 11 September 2019
Institute service identifier : LV-U.04
Time interval , Time interval : 3.30E-9 s to 100 s
Period source
Absolute expanded uncertainty : 0.6 ns
Time interval counter
Slewing rate : 0.5 V/ns
Approved on 10 June 2019
Institute service identifier : IMBIH/TF_3.1.1
Pressure , Absolute pressure : 1.00E4 Pa to 3.50E5 Pa
Pressure balance
Absolute expanded uncertainty
0.3 Pa+3.0E-05p

p pressure in Pa

The uncertainty is expressed in Pa

Gas medium
Uncertainty values range from 0.60 Pa to 11 Pa.
Approved on 10 February 2019
DC voltage (up to 1100 V) , DC voltage sources: single values : 10 V
Solid state voltage standard
Relative expanded uncertainty : 1 µV/V
Direct comparison with a bank of solid state standards
Approved on 11 May 2017
Institute service identifier : IMBiH/1
DC voltage (up to 1100 V) , DC voltage meters: intermediate values : 0.01 V to 1000 V
DC voltmeter, multimeter
Relative expanded uncertainty : 4 µV/V to 1.7E1 µV/V
{"row_1":{"col_1":"","col_2":"Expanded uncertainty (µV/V)"},"row_2":{"col_1":"10 mV","col_2":"17"},"row_3":{"col_1":"20 mV","col_2":"10"},"row_4":{"col_1":"50 mV","col_2":"6.5"},"row_5":{"col_1":"100 mV","col_2":"4.5"},"row_6":{"col_1":"190 mV","col_2":"4.5"},"row_7":{"col_1":"0.2 V","col_2":"4.5"},"row_8":{"col_1":"0.5 V","col_2":"4.5"},"row_9":{"col_1":"1 V","col_2":"4"},"row_10":{"col_1":"1.9 V","col_2":"4"},"row_11":{"col_1":"5 V","col_2":"4"},"row_12":{"col_1":"10 V","col_2":"4"},"row_13":{"col_1":"15 V","col_2":"4"},"row_14":{"col_1":"19 V","col_2":"4"},"row_15":{"col_1":"20 V","col_2":"6.5"},"row_16":{"col_1":"50 V","col_2":"5.5"},"row_17":{"col_1":"100 V","col_2":"5.5"},"row_18":{"col_1":"190 V","col_2":"6.5"},"row_19":{"col_1":"200 V","col_2":"8.5"},"row_20":{"col_1":"500 V","col_2":"6.5"},"row_21":{"col_1":"900 V","col_2":"5.5"},"row_22":{"col_1":"1000 V","col_2":"5.5"}}
Comparison with reference digital multimeter
Approved on 11 May 2017
Institute service identifier : IMBiH/4
DC voltage (up to 1100 V) , DC voltage sources: low values : 0.01 V to 10 V
DC voltage source, multifunction calibrator
Relative expanded uncertainty : 4 µV/V to 1.7E1 µV/V
{"row_1":{"col_1":"","col_2":"Expanded uncertainty (µV/V)"},"row_2":{"col_1":"10 mV","col_2":"17"},"row_3":{"col_1":"20 mV","col_2":"10"},"row_4":{"col_1":"50 mV","col_2":"6.5"},"row_5":{"col_1":"100 mV","col_2":"4.5"},"row_6":{"col_1":"190 mV","col_2":"4.5"},"row_7":{"col_1":"0.2 V","col_2":"4.5"},"row_8":{"col_1":"0.5 V","col_2":"4.5"},"row_9":{"col_1":"1 V","col_2":"4"},"row_10":{"col_1":"1.9 V","col_2":"4"},"row_11":{"col_1":"5 V","col_2":"4"},"row_12":{"col_1":"10 V","col_2":"4"}}
Comparison with reference digital multimeter
Approved on 11 May 2017
Institute service identifier : IMBiH/2
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 4 °C to 70 °C
Temperature sensors with display unit
Absolute expanded uncertainty : 7 mK
Calibration by comparison at one temperature
Stirred liquid bath : water
Uncertainty at the calibration point.
Approved on 07 September 2016
Mass , Mass : 0.1 kg to 1 kg
Mass standard
Absolute expanded uncertainty : 2.0E1 µg to 2.2E2 µg
Comparison in air
Uncertainty scales with measurand level. The volume of the mass standards is known.
Approved on 20 July 2015
Frequency , Frequency : 1.00E-3 Hz to 1.30E9 Hz
General frequency source
Absolute expanded uncertainty
(2.0E-10)*f, f in Hz

The uncertainty is expressed in Hz

Direct frequency measurement
Averaging interval : N=1000
Input square wave signal. DUT effects not included in uncertainty calculation.
Approved on 10 June 2019
Institute service identifier : IMBIH/TF_2.2.1
Mass , Mass : 10 kg to 20 kg
Mass standard
Absolute expanded uncertainty : 2.1 mg to 1.0E1 mg
Comparison in air
Uncertainty scales with measurand level. The volume of the mass standards is known.
Approved on 20 July 2015
Items for disseminating ITS-90 and PLTS 2000 , Temperature : 4 °C to 70 °C
SPRT
Absolute expanded uncertainty : 7 mK
Calibration by comparison at one temperature
Stirred liquid bath : water
Uncertainty at the calibration point.
Approved on 07 September 2016
DC current (up to 100 A) , DC current sources: low values : 10 µA to 100 µA
DC current generator, multifunction calibrator
Relative expanded uncertainty : 1.4E1 µA/A to 5.0E1 µA/A
{"row_1":{"col_1":"","col_2":"Expanded uncertainty (µA/A)"},"row_2":{"col_1":"10 µA","col_2":"50"},"row_3":{"col_1":"20 µA","col_2":"29"},"row_4":{"col_1":"50 µA","col_2":"18.5"},"row_5":{"col_1":"100 µA","col_2":"13.5"}}
Direct comparison with reference digital multimeter
Approved on 11 May 2017
Mass , Mass : 1 mg to 100 mg
Mass standard
Absolute expanded uncertainty : 0.7 µg to 2 µg
Comparison in air
Uncertainty scales with measurand level. The volume of the mass standards is known.
Approved on 20 July 2015
Time interval , Time interval : 1.00E-9 s to 1 s
Delay source
Absolute expanded uncertainty : 0.6 ns
Time interval counter
Slewing rate : 0.5 V/ns
Approved on 29 August 2016
Institute service identifier : IMBIH/TF_3.2.4
Time interval , Time interval : 1 s to 8.64E4 s
Time difference meter
Absolute expanded uncertainty : 2.9E1 ms
Totalize method
Timebase error : 5.0E-13 s/s
Including DUT's effect and operator response time.
Approved on 10 June 2019
Institute service identifier : IMBIH/TF_3.4.3b
Time interval , Time interval : 1.00E-10 s to 1.00E-6 s
Rise/fall time meter
Absolute expanded uncertainty : 4.4E-11 s to 5.8E-10 s
Rise/fall time source
Amplitude : - 5 V to +5 V
DUT effects not included in uncertainty calculation.
Approved on 10 June 2019
Institute service identifier : IMBIH/TF_3.4.1
DC current (up to 100 A) , DC current meters: intermediate values : 1.00E-4 A to 10 A
DC current meter, multimeter
Relative expanded uncertainty : 2.7E1 µA/A to 6.3E2 µA/A
{"row_1":{"col_1":"","col_2":"Expanded uncertainty (µA/A)"},"row_2":{"col_1":"190 µA","col_2":"33"},"row_3":{"col_1":"0.2 mA","col_2":"41"},"row_4":{"col_1":"0.5 mA","col_2":"35"},"row_5":{"col_1":"1 mA","col_2":"29"},"row_6":{"col_1":"1.9 mA","col_2":"27"},"row_7":{"col_1":"2 mA","col_2":"38"},"row_8":{"col_1":"5 mA","col_2":"35"},"row_9":{"col_1":"10 mA","col_2":"29"},"row_10":{"col_1":"19 mA","col_2":"27"},"row_11":{"col_1":"20 mA","col_2":"79"},"row_12":{"col_1":"50 mA","col_2":"60"},"row_13":{"col_1":"100 mA","col_2":"53"},"row_14":{"col_1":"190 mA","col_2":"48"},"row_15":{"col_1":"0.2 A","col_2":"335"},"row_16":{"col_1":"0.5 A","col_2":"280"},"row_17":{"col_1":"1 A","col_2":"220"},"row_18":{"col_1":"1.9 A","col_2":"205"},"row_19":{"col_1":"2 A","col_2":"625"},"row_20":{"col_1":"5 A","col_2":"520"},"row_21":{"col_1":"10 A","col_2":"450"}}
Direct comparison with multifunction calibrator
Approved on 11 May 2017
DC resistance , DC resistance standards and sources: intermediate values : 1 Ω to 1.00E5 Ω
Fixed resistor
Relative expanded uncertainty : 0.65 µΩ/Ω
{"row_1":{"col_1":"","col_2":"Expanded uncertainty (µΩ/Ω)"},"row_2":{"col_1":"1 Ω to 10 Ω","col_2":"0.65"},"row_3":{"col_1":"10 Ω to 10 kΩ","col_2":"0.65"},"row_4":{"col_1":"10 kΩ to 100 kΩ","col_2":"0.65"}}
DC current comparator
Approved on 11 May 2017

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