CCQM-K112
MEASURAND Contents of biogas / Methane
NOMINAL VALUE 44 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Carbon dioxide
NOMINAL VALUE 40 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Nitrogen
NOMINAL VALUE 16 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Hydrogen
NOMINAL VALUE 0.8 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Oxygen
NOMINAL VALUE 0.5 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Ethane
NOMINAL VALUE 620 µmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Propane
NOMINAL VALUE 150 µmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
CCQM-K112
MEASURAND Contents of biogas / Methane
NOMINAL VALUE 44 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
cmol/mol |
cmol/mol |
cmol/mol |
||
VNIIM | 0.00 | 0.05 | ||
INMETRO | 0.04 | 0.13 | ||
BFKH | 0.34 | 0.08 | ||
SMU | 0.01 | 0.06 | ||
CEM | -0.06 | 0.06 | ||
CMI | -0.22 | 0.04 | ||
RISE | 0.07 | 0.28 | ||
VSL | -0.03 | 0.04 | ||
NPL | 0.03 | 0.05 | ||
UME | 0.01 | 0.12 |
CCQM-K112
MEASURAND Contents of biogas / Carbon dioxide
NOMINAL VALUE 40 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
cmol/mol |
cmol/mol |
cmol/mol |
||
VNIIM | -0.02 | 0.06 | ||
INMETRO | -0.17 | 0.20 | ||
BFKH | 0.33 | 0.05 | ||
SMU | 0.04 | 0.12 | ||
CEM | 0.13 | 0.16 | ||
CMI | -0.01 | 0.03 | ||
RISE | -0.06 | 0.25 | ||
VSL | -0.01 | 0.04 | ||
NPL | 0.01 | 0.04 | ||
UME | -0.01 | 0.06 |
CCQM-K112
MEASURAND Contents of biogas / Nitrogen
NOMINAL VALUE 16 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
cmol/mol |
cmol/mol |
cmol/mol |
||
VNIIM | -0.02 | 0.03 | ||
INMETRO | 0.12 | 0.13 | ||
BFKH | -0.63 | 0.03 | ||
SMU | -0.01 | 0.03 | ||
CEM | -0.14 | 0.15 | ||
CMI | 0.22 | 0.02 | ||
RISE | 0.04 | 0.16 | ||
VSL | 0.00 | 0.02 | ||
NPL | 0.02 | 0.04 | ||
UME | 0.01 | 0.02 |
CCQM-K112
MEASURAND Contents of biogas / Hydrogen
NOMINAL VALUE 0.8 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
cmol/mol |
cmol/mol |
cmol/mol |
||
VNIIM | -0.001 | 0.004 | ||
INMETRO | -0.013 | 0.009 | ||
BFKH | -0.030 | 0.012 | ||
SMU | 0.012 | 0.013 | ||
CEM | -0.012 | 0.232 | ||
CMI | -0.004 | 0.061 | ||
RISE | 0.014 | 0.017 | ||
VSL | -0.001 | 0.003 | ||
NPL | 0.004 | 0.004 | ||
UME | 0.001 | 0.003 |
CCQM-K112
MEASURAND Contents of biogas / Oxygen
NOMINAL VALUE 0.5 cmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
cmol/mol |
cmol/mol |
cmol/mol |
||
VNIIM | 0.000 | 0.002 | ||
INMETRO | -0.002 | 0.003 | ||
BFKH | -0.018 | 0.002 | ||
SMU | 0.001 | 0.004 | ||
CEM | 0.024 | 0.003 | ||
CMI | 0.002 | 0.011 | ||
RISE | -0.011 | 0.011 | ||
VSL | 0.003 | 0.003 | ||
NPL | 0.002 | 0.002 | ||
UME | -0.019 | 0.002 |
CCQM-K112
MEASURAND Contents of biogas / Ethane
NOMINAL VALUE 620 µmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
µmol/mol |
µmol/mol |
µmol/mol |
||
VNIIM | -1.4 | 1.9 | ||
INMETRO | 0.1 | 2.4 | ||
BFKH | 1.5 | 7.7 | ||
SMU | -0.3 | 4.9 | ||
CEM | -0.1 | 1.5 | ||
CMI | -12.4 | 58.6 | ||
RISE | 48.2 | 34.4 | ||
VSL | 1.1 | 1.6 | ||
NPL | -0.6 | 2.5 | ||
UME | -0.9 | 3.3 |
CCQM-K112
MEASURAND Contents of biogas / Propane
NOMINAL VALUE 150 µmol/mol
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in cmol/mol.
LABi | Di | Uneg,i | Upos,i | |
---|---|---|---|---|
µmol/mol |
µmol/mol |
µmol/mol |
||
VNIIM | -0.9 | 1.0 | ||
INMETRO | -0.2 | 1.3 | ||
BFKH | 2.1 | 3.8 | ||
SMU | 1.2 | 1.3 | ||
CEM | -0.7 | 1.2 | ||
CMI | 0.4 | 29.1 | ||
RISE | 6.0 | 21.3 | ||
VSL | 1.3 | 0.8 | ||
NPL | -0.2 | 0.9 | ||
UME | -1.1 | 1.1 |
Metrology area, Sub-field | Chemistry and Biology, Gases |
Description | Composition of Biogas |
Time of measurements | 2014 |
Status | Approved for equivalence |
Final Reports of the comparisons | |
Transfer device | Dedicated samples |
Comparison type | Key Comparison |
Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
Conducted by | CCQM (Consultative Committee for Amount of Substance) |
Comments | Results published on 4 August 2020 |
Pilot institute |
VSL
VSL Netherlands |
Contact person | A. van der Veen +31 15 2691500 |
Pilot laboratory | |
---|---|
VSL |
VSL, Netherlands, EURAMET |
BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
CEM |
Centro Español de Metrologia, Spain, EURAMET |
CMI |
Czech Metrology Institute, Czechia, EURAMET |
INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
NPL |
National Physical Laboratory, United Kingdom, EURAMET |
RISE |
Research Institutes of Sweden AB, Sweden, EURAMET |
SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
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CCQM-K112
MEASURAND Contents of biogas / Methane
NOMINAL VALUE 44 cmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Carbon diaoxide
NOMINAL VALUE 40 cmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Nitrogen
NOMINAL VALUE 16 cmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Hydrogen
NOMINAL VALUE 0.8 cmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Oxygen
NOMINAL VALUE 0.5 cmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Ethane
NOMINAL VALUE 620 µmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Propane
NOMINAL VALUE 150 µmol/mol
The key comparison reference value xR and its associated standard uncertainty u (xR) are consensus values for each component, computed using two different methods. For more information, cf. CCQM-K112 Final Report (Sec. 3.4).
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms:
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = k ui , where k represents the coverage factor.
CCQM-K112
MEASURAND Contents of biogas / Methane
NOMINAL VALUE 44 cmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Carbon dioxide
NOMINAL VALUE 40 cmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Nitrogen
NOMINAL VALUE 16 cmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Hydrogen
NOMINAL VALUE 0.8 cmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Oxygen
NOMINAL VALUE 0.5 cmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Ethane
NOMINAL VALUE 620 µmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCQM-K112
MEASURAND Contents of biogas / Propane
NOMINAL VALUE 150 µmol/mol
xi measured amount fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi