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 buffer solution of potassium hydrogen phtalate | 3.8 to 4.2 | 7.0E-3 | 3.8 to 4.2 | 7.0E-3 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in S/m | Absolute expanded uncertainty in % | Electrolytic conductivity in | Absolute expanded uncertainty in | |
aqueous solution | 1.00E-4 to 2.00E-3 | 2 to 0.5 |
Matrix or material | Dissemination range of measurement capability | Range of certified values in reference materials | ||
Electrolytic conductivity in S/m | Absolute expanded uncertainty in % | Electrolytic conductivity in | Absolute expanded uncertainty in | |
aqueous solution | 0.015 to 0.1 | 0.2 to 5.0E-2 |
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 buffer solution of potassium tetraoxalate | 1.6 to 1.8 | 1.0E-2 | 1.6 to 1.8 | 1.0E-2 |
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 buffer solution of sodium tetraborate | 9.1 to 9.2 | 1.0E-2 | 9.18 | 1.0E-2 |
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 | 2.00E-3 to 0.015 | 0.5 to 0.1 | 2.00E-3 to 0.015 | 0.5 to 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 buffer solution of sodium hydrogen carbonate + sodium carbonate | 9.5 to 10.5 | 5.0E-3 | 9.5 to 10.5 | 5.0E-3 |
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 | 0.1 to 11.5 | 5.0E-2 | 0.1408 to 11.13 | 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 buffer solution of disodium hydrogen phosphate + potassium dihydrogen phosphate | 6.8 to 7.5 | 6.0E-3 to 7.0E-3 | 6.8 to 7.5 | 8.0E-3 |
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 mmol/mol | Relative expanded uncertainty in % | ||
synthetic natural gas | carbon dioxide | 1 to 50 | 0.4 | 1 to 50 | 0.4 |
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 mmol/mol | Relative expanded uncertainty in % | ||
nitrogen | carbon dioxide | 10 to 200 | 0.18 | 10 to 200 | 0.18 |
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 mmol/mol | Relative expanded uncertainty in % | ||
nitrogen | carbon dioxide | 60 to 140 | 0.59 | 60 to 140 | 0.59 |
nitrogen | carbon monoxide | 5 to 35 | 0.5 | 5 to 35 | 0.5 |
nitrogen | propane | 0.1 to 2 | 0.84 | 0.1 to 2 | 0.84 |
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 mmol/mol | Relative expanded uncertainty in % | ||
nitrogen or air | carbon-dioxide | 0.8 to 10 | 0.36 | 0.8 to 10 | 0.36 |
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 mmol/mol | Relative expanded uncertainty in % | ||
nitrogen or air | carbon-monoxide | 0.1 to 100 | 1.1 | 0.1 to 100 | 1.1 |
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 mmol/mol | Relative expanded uncertainty in % | ||
synthetic natural gas | ethane | 10 to 200 | 0.14 | 10 to 200 | 0.14 |
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 µmol/mol | Relative expanded uncertainty in % | ||
nitrogen | ethanol | 50 to 500 | 1 | 50 to 500 | 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 µmol/mol | Relative expanded uncertainty in % | ||
air | ethanol | 50 to 500 | 1 | 50 to 500 | 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 mmol/mol | Relative expanded uncertainty in % | ||
synthetic natural gas | i-butane | 0.5 to 15 | 0.35 | 0.5 to 15 | 0.35 |
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 mmol/mol | Relative expanded uncertainty in % | ||
synthetic natural gas | methane | 700 to 980 | 2.0E-2 | 700 to 980 | 2.0E-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 mmol/mol | Relative expanded uncertainty in % | ||
synthetic natural gas | n-butane | 0.5 to 15 | 0.4 | 0.5 to 15 | 0.4 |
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.