CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 30 µmol/mol
Degrees of equivalence represented by Di = (xi - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µmol/mol.
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 70 µmol/mol
Degrees of equivalence represented by Di = (xI - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µmol/mol.
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 30 µmol/mol
Degrees of equivalence represented by Di = (xi - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µmol/mol.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
µmol/mol |
µmol/mol |
µmol/mol |
||
| BFKH | -0.63 | 0.31 | ||
| CERI | -0.01 | 0.18 | ||
| GUM | 0.68 | 0.63 | ||
| KRISS | 0.08 | 0.27 | ||
| LNE | -0.03 | 0.15 | ||
| NIM | 0.03 | 0.18 | ||
| NMIA | -0.01 | 0.3 | ||
| NMISA | 0.05 | 0.22 | ||
| NPL | -0.09 | 0.15 | ||
| VNIIM | 0.09 | 0.1 | ||
| NIST | 0.06 | 0.23 |
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 70 µmol/mol
Degrees of equivalence represented by Di = (xI - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µmol/mol.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
µmol/mol |
µmol/mol |
µmol/mol |
||
| BFKH | -0.57 | 0.54 | ||
| CERI | -0.01 | 0.36 | ||
| GUM | 1.31 | 1.11 | ||
| KRISS | 0.22 | 0.35 | ||
| LNE | -0.03 | 0.21 | ||
| NIM | 0 | 0.37 | ||
| NMIA | 0.03 | 0.33 | ||
| NMISA | 0.16 | 0.25 | ||
| NPL | -0.14 | 0.21 | ||
| VSL | -0.04 | 0.27 | ||
| NIST | 0.05 | 0.38 |
| Metrology area, Sub-field | Chemistry and Biology, Gases |
| Description | Nitrogen monoxide (NO) in nitrogen (N2) |
| Time of measurements | 2017 - 2018 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Amount-of-substance fraction: 30 µmol/mol to 70 µmol/mol |
| Transfer device | Each participant in the comparison is expected to send two cylinders of NO in nitrogen to the BIPM |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | CCQM (Consultative Committee for Amount of Substance) |
| Comments | Published on 27 November 2019
|
| Pilot institute |
BIPM
Bureau International des Poids et Mesures BIPM - International Organization |
| Contact person | J. Viallon +33 (0) 1 47 07 62 70 |
| Pilot laboratory | |
|---|---|
| BIPM |
Bureau International des Poids et Mesures, BIPM - International Organization, N/A |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| CERI |
Chemicals Evaluation and Research Institute, Japan, APMP |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
| VSL |
VSL, Netherlands, EURAMET |
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CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 30 µmol/mol
The key comparison reference values xR,i and its associated standard uncertainty uR,i are computed from a generalized least-square regression including the reported results of the participating institutes (BFKH, GUM and VNIIM excluded).
xRi determined key comparison reference value for laboratory i, Labi
ui standard uncertainty of xRi
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 70 µmol/mol
The key comparison reference values xR,i and its associated standard uncertainty uR,i are computed from a generalized least-square regression including the reported results of all participating institutes (BFKH, GUM and VNIIM excluded).
xRi determined key comparison reference value for laboratory i, Labi
ui standard uncertainty of xRi
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 30 µmol/mol
xi submitted or interpolated mole fraction associated with laboratory i, Labi
ui combined standard uncertainty of xi
*Value interpolated at the date of measurement (see section 9 of the CCQM-K137 Final Report).
CCQM-K137
MEASURAND Mole fraction of nitrogen monoxide (NO) in nitrogen (N2)
NOMINAL VALUE 70 µmol/mol
xi submitted or interpolated mole fraction associated with laboratory i, Labi
ui combined standard uncertainty of xi
*Value interpolated at the date of measurement (see section 9 of the CCQM-K137 Final Report).
