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)
Italy, INRIM (Istituto Nazionale di Ricerca Metrologica)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
fish tissue arsenic 3 to 10 3
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 08 July 2015
  • Institute service identifier : 01
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
polypropylene cadmium 10 to 100 1.8 to 2.4
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 19 June 2014
  • Institute service identifier : 01_07
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in Absolute expanded uncertainty in
synthetic air carbon dioxide 100 to 1000 0.4
  • Mechanism for measurement service delivery : Calibration of NDIR analysers
  • Approved on 22 October 2020
  • Institute service identifier : PT-QM-4.2-02b
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in µmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in Absolute expanded uncertainty in
nitrogen carbon dioxide 100 to 1000 0.4
  • Mechanism for measurement service delivery : Calibration of NDIR analysers
  • Approved on 22 October 2020
  • Institute service identifier : PT-QM-4.2-02a
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
aluminium alloy chromium 200 to 2000 2 to 4
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 06 December 2011
  • Institute service identifier : 01_04
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
polypropylene chromium 100 to 1000 1.6 to 1.8
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 19 June 2014
  • Institute service identifier : 01_06
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
aluminium alloy iron 500 to 1.00E4 3 to 5
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 06 December 2011
  • Institute service identifier : 01_03
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
aluminium alloy manganese 100 to 2000 2.4 to 3.5
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 06 December 2011
  • Institute service identifier : 01_05
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in nmol/mol Absolute expanded uncertainty in nmol/mol Amount-of-substance fraction in % Absolute expanded uncertainty in %
purified air ozone 0 to 1000 1.1 to 2.2E1
  • Uncertainty equation CMC : Q[1.1, 0.022 x(O3)] O3 representing the amount-of-substance fraction in nmol/mol.
  • Mechanism for measurement service delivery : Instrumental comparison against primary UV photometer
  • Approved on 06 October 2022
  • Institute service identifier : L/08/01
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in mg/kg Absolute expanded uncertainty in % Mass fraction in Absolute expanded uncertainty in
fish tissue selenium 1 to 10 2 to 6
  • Mechanism for measurement service delivery : Reference measurement
  • Approved on 08 July 2015
  • Institute service identifier : 02
Linear vibration , Acceleration : 10 m/s2 to 500 m/s2
Calibrator
Relative expanded uncertainty : 1.2 %
Comparison, ISO 16063-21
Frequency : 1.25 kHz to 10 kHz
Velocity and displacement can be derived from acceleration
Approved on 27 December 2007
Sound measuring instruments , Sound pressure response level : 90 dB (reference: 20 µPa) to 115 dB (reference: 20 µPa)
Sound level meter
Absolute expanded uncertainty : 0.15 dB
Pistonphone or pressure comparison
Frequency : 250 Hz, 1000 Hz
Approved on 27 December 2007
Measurement microphones , Pressure sensitivity level
Laboratory standard microphone type LS1
Absolute expanded uncertainty : 8.0E-2 dB
Pressure reciprocity IEC 61094-2:1992
Frequency : 10 kHz
Approved on 27 December 2007
Linear vibration , Voltage sensitivity (magnitude)
Acceleration measuring chain
Relative expanded uncertainty : 1.2 %
Comparison, ISO 16063-21
Frequency : 1.25 kHz to 10 kHz
Velocity and displacement can be derived from acceleration
Approved on 27 December 2007
Measurement microphones , Pressure sensitivity level
Working standard microphone
Absolute expanded uncertainty : 0.3 dB
Pressure comparison
Frequency : 10000 Hz to 12500 Hz
Approved on 27 December 2007
Linear vibration , Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty : 0.8 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 1 kHz
Velocity and displacement can be derived from acceleration
Approved on 27 December 2007
Measurements on materials , Soft magnetic sheet materials: value of magnetic field strength : 0.5 A/m to 1.00E4 A/m
Epstein, ring and single sheet sample
Relative expanded uncertainty : 4.0E-3 to 1.6E-2
{"row_1":{"col_1":"","col_2":"1 Hz to 10 Hz","col_3":"10 Hz to 1 kHz","col_4":"1 kHz to 10 kHz"},"row_2":{"col_1":"Expanded uncertainty","col_2":"4.00E-03","col_3":"1.00E-02","col_4":"1.60E-02"}}
The expanded uncertainties given in this table are relative values
Hysteresisgraph-wattmeter / ballistic setup (IEC 60404-2, IEC 60404-3, IEC 60404-4, IEC 60404-6, IEC 60404-10)
Frequency : DC to 10 kHz
Primary current : < 15 A
Approved on 06 January 2015
Institute service identifier : INRIM/243
Measurements on materials , Soft magnetic sheet materials: apparent power : 5.00E-3 VA/kg to 200 VA/kg
Epstein, ring and single sheet sample
Relative expanded uncertainty : 2.0E-2 to 8.0E-2
{"row_1":{"col_1":"","col_2":"1 Hz to 10 Hz","col_3":"10 Hz to 1 kHz","col_4":"1 kHz to 10 kHz"},"row_2":{"col_1":"Bp < Bp_mumax","col_2":"3.00E-02","col_3":"2.00E-02","col_4":"3.00E-02"},"row_3":{"col_1":"Bp > Bp_mumax","col_2":"8.00E-02","col_3":"5.00E-02","col_4":"5.00E-02"}}
The expanded uncertainties given in this table are relative values
Hysteresisgraph-wattmeter (IEC 60404-2, IEC 60404-3, IEC 60404-6, IEC 60404-10)
Frequency : 1 Hz to 10 kHz
Sample mass : > 0.1 kg
Primary current : < 15 A
Approved on 06 January 2015
Institute service identifier : INRIM/240a
DC resistance , DC resistance standards and sources: high values : 1.00E7 Ω to 1.00E14 Ω
Fixed resistor
Relative expanded uncertainty : 1.5E1 µΩ/Ω to 6.6E2 µΩ/Ω
{"row_1":{"col_1":"","col_2":"10 V","col_3":"50 V","col_4":"100 V","col_5":"250 V","col_6":"500 V","col_7":"750 V","col_8":"1000 V"},"row_2":{"col_1":"10 MΩ","col_2":"9.8","col_3":"14","col_4":"13","col_5":"-","col_6":"-","col_7":"-","col_8":"-"},"row_3":{"col_1":"100 MΩ","col_2":"16","col_3":"13","col_4":"12","col_5":"14","col_6":"-","col_7":"-","col_8":"-"},"row_4":{"col_1":"1 GΩ","col_2":"-","col_3":"23","col_4":"17","col_5":"14","col_6":"13","col_7":"13","col_8":"12"},"row_5":{"col_1":"10 GΩ","col_2":"-","col_3":"92","col_4":"67","col_5":"35","col_6":"28","col_7":"27","col_8":"27"},"row_6":{"col_1":"100 GΩ","col_2":"-","col_3":"-","col_4":"64","col_5":"100","col_6":"96","col_7":"95","col_8":"67"},"row_7":{"col_1":"1 TΩ","col_2":"-","col_3":"-","col_4":"-","col_5":"-","col_6":"160","col_7":"130","col_8":"120"},"row_8":{"col_1":"10 TΩ","col_2":"-","col_3":"-","col_4":"-","col_5":"-","col_6":"620","col_7":"-","col_8":"620"},"row_9":{"col_1":"100 TΩ","col_2":"-","col_3":"","col_4":"-","col_5":"-","col_6":"660","col_7":"-","col_8":"660"}}
The expanded uncertainties given in this table are expressed in µΩ/Ω
Calibrator and multimeter or Wheatstone bridge
Voltage : 10 V to 1000 V
Approved on 06 August 2013
Institute service identifier : INRIM/23_27
High voltage and current , High AC voltage: voltage transformer ratio error : 0 to 0.02
High voltage sensors, non conventional voltage transformer with analog output
Absolute expanded uncertainty : 1.0E-4
Dedicated set-up for non conventional voltage transformer calibration
Input voltage : 500 V to 50 kV
Output voltage : 10 mV to 200 V
Frequency : 40 Hz to 60 Hz
Approved on 07 February 2019
Institute service identifier : INRIM/173b

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