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 | ||
air | benzene | 0.5 to 1.7 | 0.1 to 0.2 | ||
air | toluene | 0.5 to 1.7 | 0.1 to 0.2 | ||
air | xylene | 0.5 to 1.7 | 0.1 to 0.2 |
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 | Absolute expanded uncertainty in % | Amount-of-substance fraction in | Absolute expanded uncertainty in | ||
air | benzene | 1.7 to 50 | 1.2E1 to 1.1E1 | ||
air | toluene | 1.7 to 50 | 1.2E1 to 1.1E1 | ||
air | xylene | 1.7 to 50 | 1.2E1 to 1.1E1 |
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 | |||
air, nitrogen | nitrogen monoxide | 10 to 60 | 7.7 |
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 | |||
air, nitrogen | nitrogen monoxide | 60 to 500 | 7.7 to 8 |
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 |
The uncertainty is expressed in nmol/mol
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 | |||
air | sulphur dioxide | 60 to 500 | 4.6 to 9 |
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 | |||
air | sulphur dioxide | 10 to 60 | 4.6 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in S/m | Relative expanded uncertainty in % | Electrolytic conductivity in S/m | Relative expanded uncertainty in % | |
aqueous solution | 1.50E-3 to 0.015 | 1.7 to 0.23 | 5.00E-3 to 0.015 | 1.7 to 0.23 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in S/m | Relative expanded uncertainty in % | Electrolytic conductivity in S/m | Relative expanded uncertainty in % | |
aqueous solution | 0.015 to 0.15 | 0.62 to 0.19 | 0.015 to 0.15 | 0.64 to 0.19 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 9.8 to 10.2 | 4.0E-3 | 9.8 to 10.2 | 7.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 8.5 to 9.5 | 4.0E-3 | 8.5 to 9.5 | 7.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | |
aqueous solution (KCl or NaCl) | 0.15 to 1.5 | 0.39 to 0.4 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 1.5 to 1.9 | 5.0E-3 | 1.5 to 1.9 | 7.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 3.8 to 4.2 | 7.0E-3 | 3.8 to 4.2 | 8.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | |
aqueous solution (KCl or NaCl) | 0.05 to 0.15 | 0.73 to 0.39 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | |
aqueous solution (KCl or NaCl) | 1.5 to 15 | 0.4 to 1.8 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | Electrolytic conductivity in µS/cm | Relative expanded uncertainty in % | |
aqueous solution (KCl or NaCl) | 15 to 150 | 1.8 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in S/m | Relative expanded uncertainty in % | Electrolytic conductivity in S/m | Relative expanded uncertainty in % | |
aqueous solution | 0.15 to 1.5 | 0.1 | 0.15 to 1.5 | 0.1 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 6.8 to 7.5 | 4.0E-3 | 6.8 to 7.5 | 5.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
pH in | Absolute expanded uncertainty in | pH in | Absolute expanded uncertainty in | |
aqueous pH buffer solution | 9 to 9.4 | 4.0E-3 | 9 to 9.4 | 7.0E-3 |
This metrology area covers the fields of acoustics, ultrasound and vibration.
This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.
This metrology area covers the fields of laser frequencies and dimensional metrology.
This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.
This metrology area covers all fields relevant to chemistry and biology.
This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.