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.

30 µmol/mol
Di
Participating institutes

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.

70 µmol/mol
Di
Participating institutes

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
Participating institutes
CCQM-K137 (30 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.

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
Participating institutes
CCQM-K137 (70 µmol/mol)
Comparison
Comparison close
CC comparison
Linked comparison
CCQM-K137
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

CCQM-K137 Technical Protocol

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
jviallon@bipm.org
+33 (0) 1 47 07 62 70
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
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

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 iLabi

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 iLabi

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 iLabi

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 iLabi

ui   combined standard uncertainty of xi

 

*Value interpolated at the date of measurement (see section 9 of the CCQM-K137 Final Report).