Results for: Federal Institute of Metrology METAS
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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)
Switzerland, METAS (Federal Institute of Metrology)
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Number concentration in cm-3 Relative expanded uncertainty in % Number concentration in % Absolute expanded uncertainty in %
air airborne particles 100 to 6.00E4 1.9 to 3
  • Mechanism for measurement service delivery : Calibration
  • Approved on 19 September 2024
  • Institute service identifier : 235-1
  • CMC ID : EURAMET-QM-CH-000002L8-3
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Charge concentration in fC/cm3 Relative expanded uncertainty in % Charge concentration in % Absolute expanded uncertainty in %
air airborne particles 0.15 to 3 3.5 to 1
  • Mechanism for measurement service delivery : Calibration
  • Approved on 11 April 2024
  • Institute service identifier : 235-2
  • CMC ID : EURAMET-QM-CH-000002L9-2
     
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 Relative expanded uncertainty in % Amount -of-substance fraction in % Absolute expanded uncertainty in %
air, nitrogen ammonia 2 to 400 2.1 to 1.7
  • Mechanism for measurement service delivery : Calibration of instruments
  • Approved on 05 April 2023
  • Institute service identifier : 232-9a
  • CMC ID : EURAMET-QM-CH-00000OA2-1
     
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 ammonia 10 to 100 1.1E1
  • Mechanism for measurement service delivery : Calibration of binary gas mixtures or gas mixture generating devices
  • Approved on 04 April 2022
  • Institute service identifier : 232-9
  • CMC ID : EURAMET-QM-CH-000002L2-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
high protein food matrix benz[a]anthracene 0.5 to 20 7 to 5.4 3.17 0.32
  • Mechanism for measurement service delivery : Calibration, value assignment service and CRM WP-CBR001
  • Approved on 30 July 2025
  • Institute service identifier : 5236-01 and WP-CBR001
  • CMC ID : EURAMET-QM-CH-00000QBE-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
high protein food matrix benzo[a]pyrene 0.5 to 20 7 to 5.3 4.18 0.48
  • Mechanism for measurement service delivery : Calibration, value assignment service, and CRM WP-CBR001
  • Approved on 30 July 2025
  • Institute service identifier : 5236-01 and WP-CBR001
  • CMC ID : EURAMET-QM-CH-00000QBF-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
high protein food matrix benzo[b]fluoranthene 0.5 to 20 7 to 5.2 4.73 0.49
  • Mechanism for measurement service delivery : Calibration, value assignment service, and CRM WP-CBR001
  • Approved on 30 July 2025
  • Institute service identifier : 5236-01 and WP-CBR001
  • CMC ID : EURAMET-QM-CH-00000QBG-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in % Absolute expanded uncertainty in %
nitrogen carbon dioxide 10 to 200 0.35
  • Mechanism for measurement service delivery : Calibration of gas mixtures
  • Approved on 29 June 2025
  • Institute service identifier : 232-3 rev.
  • CMC ID : EURAMET-QM-CH-000002L5-3
     
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
nitrogen carbon monoxide 1 to 200 1 to 0.6
  • Mechanism for measurement service delivery : Calibration of gas mixtures
  • Approved on 22 October 2020
  • Institute service identifier : 232-1 rev.
  • CMC ID : EURAMET-QM-CH-000002L0-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount-of-substance fraction in mmol/mol Relative expanded uncertainty in % Amount-of-substance fraction in % Absolute expanded uncertainty in %
nitrogen carbon monoxide 1 to 50 1.2
  • Mechanism for measurement service delivery : Calibration of gas mixtures
  • Approved on 29 June 2025
  • Institute service identifier : 232-2 rev.
  • CMC ID : EURAMET-QM-CH-000002L1-3
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in µg/kg Relative expanded uncertainty in % Mass fraction in µg/kg Absolute expanded uncertainty in µg/kg
high protein food matrix chrysene 0.5 to 20 7 to 5.4 2.85 0.33
  • Mechanism for measurement service delivery : Calibration, value assignment service, and CRM WP-CBR001
  • Approved on 30 July 2025
  • Institute service identifier : 5236-01 and WP-CBR001
  • CMC ID : EURAMET-QM-CH-00000QBH-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Mass fraction in g/kg Relative expanded uncertainty in % Mass fraction in
water ethanol 0.5 to 5 0.35
  • Mechanism for measurement service delivery : Gravimetric preparation and value assignment by quantitative HPLC-RID
  • Approved on 22 October 2020
  • Institute service identifier : 232-12
  • CMC ID : EURAMET-QM-CH-00000JNF-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Airborne Particle Number Concentration in cm-3 Relative expanded uncertainty in % Airborne Particle Number Concentration in % Absolute expanded uncertainty in %
dry air monodisperse polystyrene latex spheres with nominal diameter ranging from 0.1 μm to 1.5 μm 0.5 to 800 6.3 to 2
  • Mechanism for measurement service delivery : Calibration of optical and aerodynamic particle counters and size spectrometers
  • Approved on 27 June 2023
  • Institute service identifier : 235-3
  • CMC ID : EURAMET-QM-CH-00000LX1-3
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Airborne Particle Number Concentration in cm-3 Relative expanded uncertainty in % Airborne Particle Number Concentration in % Absolute expanded uncertainty in %
dry air Monodisperse polystyrene latex spheres with nominal diameter ranging from > 10.1 μm to 15.0 μm 0.5 to 5 9.5
  • Mechanism for measurement service delivery : Calibration of optical and aerodynamic particle counters and size spectrometers
  • Approved on 11 July 2023
  • Institute service identifier : 235-5
  • CMC ID : EURAMET-QM-CH-00000OGR-1
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Airborne Particle Number Concentration in cm-3 Relative expanded uncertainty in % Airborne Particle Number Concentration in % Absolute expanded uncertainty in %
dry air monodisperse polystyrene latex spheres with nominal diameter ranging from >1.5 μm to 10.0 μm 0.5 to 5 7.3
  • Mechanism for measurement service delivery : Calibration of optical and aerodynamic particle counters and size spectrometers
  • Approved on 28 June 2022
  • Institute service identifier : 235-4
  • CMC ID : EURAMET-QM-CH-00000LX2-2
     
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 nitrogen dioxide 10 to 100 1.5
  • Mechanism for measurement service delivery : Calibration of gas mixtures and instruments
  • Approved on 15 June 2022
  • Institute service identifier : 232-10
  • CMC ID : EURAMET-QM-CH-000002L3-2
     
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 Relative expanded uncertainty in % Amount-of-substance fraction in % Absolute expanded uncertainty in %
nitrogen nitrogen monoxide 100 to 1.00E4 2 to 0.5
  • Mechanism for measurement service delivery : Calibration of gas mixtures and measuring instruments
  • Approved on 29 June 2025
  • Institute service identifier : 232-7a
  • CMC ID : EURAMET-QM-CH-000002L6-2
     
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 nitrogen monoxide 30 to 150 1
  • Mechanism for measurement service delivery : Calibration of gases mixtures
  • Approved on 29 June 2025
  • Institute service identifier : 232-7rev1
  • CMC ID : EURAMET-QM-CH-000002KZ-2
     
Matrix or material Analyte or component Dissemination range of measurement capability Range of certified values in reference materials
Amount of substance fraction in mmol/mol Relative expanded uncertainty in % Amount of substance fraction in % Absolute expanded uncertainty in %
nitrogen oxygen 50 to 250 0.4
  • Mechanism for measurement service delivery : Calibration of mixtures and instruments
  • Approved on 11 July 2023
  • Institute service identifier : 232-6
  • CMC ID : EURAMET-QM-CH-00000OA1-1
     
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 0.7 to 7.1
  • Uncertainty equation CMC : Q[0.7, 0.007 x(O3)] The expanded uncertainty is expressed in nmol/mol.

    The CCQM.O3.2019 ozone absorption cross-section value and its uncertainty is used.
  • Mechanism for measurement service delivery : Instrumental comparison against primary UV photometer SRP
  • Approved on 29 June 2025
  • Institute service identifier : 232-8
  • CMC ID : EURAMET-QM-CH-000002L4-3
     

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