CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon monoxide : ~ 30 mmol/mol
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in mmol/mol
Please click onto the graph to get an enlarged version.
Red diamonds: participants in CCQM-K3
Green triangles: participants in EUROMET.QM-K3
Blue circles: participants in APMP.QM-K3
Orange squares: participants in COOMET.QM-K3
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon dioxide : ~ 135 mmol/mol
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in mmol/mol
Please click onto the graph to get an enlarged version.
Red diamonds: participants in CCQM-K3
Green triangles: participants in EUROMET.QM-K3
Blue circles: participants in APMP.QM-K3
Orange squares: participants in COOMET.QM-K3
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Propane : ~ 2 mmol/mol
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in mmol/mol
Please click onto the graph to get an enlarged version.
Red diamonds: participants in CCQM-K3
Green triangles: participants in EUROMET.QM-K3
Blue circles: participants in APMP.QM-K3
Orange squares: participants in COOMET.QM-K3
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon monoxide : ~ 30 mmol/mol
| Lab i | Di | Ui |
| /(mmol/mol) | /(mmol/mol) | |
| OMH | -0.018 | 0.038 |
| BAM | 0.037 | 0.162 |
| NIST | -0.020 | 0.209 |
| NMi-VSL | -0.028 | 0.122 |
| NMIJ | -0.040 | 0.059 |
| NRCCRM | 0.040 | 0.109 |
| SMU | -0.225 | 0.094 |
| KRISS | -0.015 | 0.034 |
| PTB | 0.026 | 0.067 |
| METAS | -0.026 | 0.074 |
| BNM-LNE | -0.282 | 0.301 |
| VNIIM | 0.293 | 0.181 |
| NPL | 0.015 | 0.068 |
| SMU | 0.014 | 0.096 |
| IPQ | 0.027 | 0.112 |
| CSIR-NML | -0.260 | 0.461 |
| GUM | 0.005 | 0.112 |
| CMI | -0.652 | 4.400 |
| NMIJ | 0.01 | 0.12 |
| CMS/ITRI | -0.07 | 0.05 |
| CSIR-NML | 0.06 | 1.60 |
| KRISS | -0.04 | 0.06 |
| VNIIM | 0.01 | 0.06 |
| UkrCSM | -0.11 | 0.12 |
| BelGIM | -0.06 | 0.20 |
| BAM | -0.04 | 0.15 |
In dark blue: laboratories participant in CCQM-K3
In green: laboratories participant in EUROMET.QM-K3 (indicated as * in "Lab j" list)
In blue: laboratories participant in APMP.QM-K3
In orange: laboratories participant in COOMET.QM-K3
Additional data: pair-wise degrees of equivalence inside APMP.QM-K3 and COOMET.QM-K3:
All results, including relative degrees of equivalence for COOMET participants, are presented under A4 printable format in Summary Results (.PDF file).
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon dioxide : ~ 135 mmol/mol
| Lab i | Di | Ui |
| /(mmol/mol) | /(mmol/mol) | |
| OMH | 0.15 | 0.14 |
| BAM | 0.01 | 0.70 |
| NIST | 0.17 | 0.24 |
| NMi-VSL | 0.02 | 0.23 |
| NMIJ | 0.01 | 0.13 |
| NRCCRM | 0.06 | 0.47 |
| SMU | 0.71 | 0.56 |
| KRISS | -0.02 | 0.09 |
| PTB | 0.30 | 0.18 |
| METAS | -0.08 | 0.31 |
| BNM-LNE | 0.28 | 0.41 |
| VNIIM | -0.05 | 0.51 |
| NPL | -0.08 | 0.28 |
| SMU | 0.03 | 0.26 |
| IMGC | -0.32 | 5.10 |
| IPQ | 0.08 | 0.47 |
| CSIR-NML | 0.32 | 4.34 |
| GUM | 0.21 | 0.14 |
| NMIJ | 0.06 | 0.25 |
| CMS/ITRI | -0.07 | 0.16 |
| CSIR-NML | 0.25 | 3.60 |
| KRISS | -0.05 | 0.18 |
| VNIIM | 0.12 | 0.13 |
| UkrCSM | -0.14 | 0.22 |
| BelGIM | 0.86 | 1.00 |
| BAM | 0.09 | 0.41 |
In dark blue: laboratories participant in CCQM-K3
In green: laboratories participant in EUROMET.QM-K3 (indicated as * in "Lab j" list)
In blue: laboratories participant in APMP.QM-K3
In orange: laboratories participant in COOMET.QM-K3
Additional data: pair-wise degrees of equivalence inside APMP.QM-K3 and COOMET.QM-K3:
All results, including relative degrees of equivalence for COOMET participants, are presented under A4 printable format in Summary Results (.PDF file).
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Propane : ~ 2 mmol/mol
| Lab i | Di | Ui |
| /(mmol/mol) | /(mmol/mol) | |
| OMH | -0.0006 | 0.0034 |
| BAM | 0.0091 | 0.0103 |
| NIST | 0.0006 | 0.0139 |
| NMi-VSL | 0.0000 | 0.0040 |
| NMIJ | 0.0000 | 0.0030 |
| NRCCRM | -0.0030 | 0.0071 |
| SMU | 0.0022 | 0.0301 |
| KRISS | 0.0013 | 0.0032 |
| PTB | -0.0078 | 0.0132 |
| METAS | -0.0159 | 0.0055 |
| BNM-LNE | -0.0030 | 0.0046 |
| VNIIM | -0.0077 | 0.0083 |
| NPL | 0.0050 | 0.0066 |
| SMU | 0.0044 | 0.0113 |
| IMGC | -0.0740 | 0.0720 |
| IPQ | 0.0002 | 0.0055 |
| GUM | -0.0006 | 0.0066 |
| CMI | 0.1219 | 0.1500 |
| NMIJ | -0.0026 | 0.0037 |
| CMS/ITRI | -0.0115 | 0.0171 |
| KRISS | 0.0021 | 0.0045 |
| VNIIM | 0.001 | 0.004 |
| UkrCSM | -0.001 | 0.004 |
| BelGIM | -0.004 | 0.020 |
| BAM | 0.010 | 0.012 |
In dark blue: laboratories participant in CCQM-K3
In green: laboratories participant in EUROMET.QM-K3 (indicated as * in "Lab j" list)
In blue: laboratories participant in APMP.QM-K3
In orange: laboratories participant in COOMET.QM-K3
Additional data: pair-wise degrees of equivalence inside APMP.QM-K3 and COOMET.QM-K3:
All results, including relative degrees of equivalence for COOMET participants, are presented under A4 printable format in Summary Results (.PDF file).
| Metrology area, Sub-field | Chemistry and Biology, Gases |
| Description | Automotive emission gases |
| Time of measurements | 2005 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Amount-of-substance fraction of CO (30 mmol/mol), CO2 (135 mmol/mol) and C3H8 (2 mmol/mol); N2 balance |
| Transfer device | Gas mixtures in cylinders |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | COOMET (Euro-Asian Cooperation of National Metrological Institutions) |
| RMO Internal Identifier | COOMET 312/Ru/04 |
| Comments | EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3 results are linked to those of CCQM-K3. Dates of publication:
Automotive emission gases. |
| Pilot institute |
VNIIM
D.I. Mendeleyev Institute for Metrology, Rosstandart Russian Federation |
| Contact person | Yury Kustikov +7 812 315 11 45 |
This page proposes print-out on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
Please, select items to be printed out, then click on "OK" :
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon monoxide : 32 mmol/mol for CCQM-K3 and EUROMET.QM-K3, 28 mmol/mol for APMP.QM-K3, and 30 mmol/mol for COOMET.QM-K3
| Key comparison reference value: there is no single key comparison reference value for this comparison, the value xigrav is taken as the reference value for laboratory i. |
| The degree of equivalence of each laboratory i with respect to the reference value is given by a pair of terms: Di = (xi - xigrav) and Ui, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui = 2(ui2 + uigravR2)1/2. |
| The degree of equivalence between two laboratories i and j is given by a pair of terms: Dij =(Di - Dj) = (xi - xigrav) - (xj - xjgrav) and Uij, its expanded uncertainty (k = 2), both expressed in mmol/mol, Uij = 2(ui2 + uj2 + uigrav2 + ujgrav2)1/2. |
| The gravimetric value xigrav-EUR is taken as the reference value for laboratory i participant in EUROMET.QM-K3. |
| The degree of equivalence of laboratory i participant in EUROMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-EUR = (xi-EUR - xigrav-EUR) and Ui-EUR, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-EUR = 2(ui-EUR2 + uigravR-EUR2)1/2. |
| The gravimetric value xigrav-APMP is taken as the reference value for laboratory i participant in APMP.QM-K3. |
| The degree of equivalence of laboratory i participant in APMP.QM-K3 with respect to the reference value is given by a pair of terms: Di-APMP = (xi-APMP - xigrav-APMP) and Ui-APMP, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-APMP = 2(ui-APMP2 + uigravR-APMP2)1/2. |
| The gravimetric value xigrav-COO is taken as the reference value for laboratory i participant in COOMET.QM-K3. |
| The degree of equivalence of laboratory i participant in COOMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-COO = (xi-COO - xigrav-COO) and Ui-COO, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-COO = (ULab i-COO2 + UigravR-COO2)1/2 (since uncertainties are all expanded with k = 2). Relative values, expressed in %, are also calculated. |
|
The regional QM-K3 key comparisons are linked to CCQM-K3 through the gravimetric values. It follows that: |
| The degrees of equivalence with respect to the reference value obtained in the regional QM-K3 key comparisons are transferred to CCQM-K3 without correction: Di = Di-RMO and Ui = Ui-RMO, with "RMO" = "EUR" or "APMP" or "COO" according to the case. |
|
The degree of equivalence between two laboratories i and j, one and the other participant in any one of the four comparisons, is given by a pair of terms: |
| These statements make it possible to extend the CCQM-K3 matrices of equivalence to participants in the regional QM-K3 key comparisons. In the following, not all pair-wise degrees of equivalence are explicitely computed. |
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Carbon dioxide : 135 mmol/mol for CCQM-K3, EUROMET.QM-K3 and COOMET.QM-K3, and 124 mmol/mol for APMP.QM-K3
| Key comparison reference value: there is no single key comparison reference value for this comparison, the value xigrav is taken as the reference value for laboratory i. |
| The degree of equivalence of each laboratory i with respect to the reference value is given by a pair of terms: Di = (xi - xigrav) and Ui, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui = 2(ui2 + uigravR2)1/2. |
| The degree of equivalence between two laboratories i and j is given by a pair of terms: Dij =(Di - Dj) = (xi - xigrav) - (xj - xjgrav) and Uij, its expanded uncertainty (k = 2), both expressed in mmol/mol, Uij = 2(ui2 + uj2 + uigrav2 + ujgrav2)1/2. |
| The gravimetric value xigrav-EUR is taken as the reference value for laboratory i participant in EUROMET.QM-K3. |
| The degree of equivalence of laboratory i participant in EUROMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-EUR = (xi-EUR - xigrav-EUR) and Ui-EUR, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-EUR = 2(ui-EUR2 + uigravR-EUR2)1/2. |
| The gravimetric value xigrav-APMP is taken as the reference value for laboratory i participant in APMP.QM-K3. |
| The degree of equivalence of laboratory i participant in APMP.QM-K3 with respect to the reference value is given by a pair of terms: Di-APMP = (xi-APMP - xigrav-APMP) and Ui-APMP, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-APMP = 2(ui-APMP2 + uigravR-APMP2)1/2. |
| The gravimetric value xigrav-COO is taken as the reference value for laboratory i participant in COOMET.QM-K3. |
| The degree of equivalence of laboratory i participant in COOMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-COO = (xi-COO - xigrav-COO) and Ui-COO, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-COO = (ULab i-COO2 + UigravR-COO2)1/2 (since uncertainties are all expanded with k = 2). Relative values, expressed in %, are also calculated. |
|
The regional QM-K3 key comparisons are linked to CCQM-K3 through the gravimetric values. It follows that: |
| The degrees of equivalence with respect to the reference value obtained in the regional QM-K3 key comparisons are transferred to CCQM-K3 without correction: Di = Di-RMO and Ui = Ui-RMO, with "RMO" = "EUR" or "APMP" or "COO" according to the case. |
|
The degree of equivalence between two laboratories i and j, one and the other participant in any one of the four comparisons, is given by a pair of terms: |
| These statements make it possible to extend the CCQM-K3 matrices of equivalence to participants in the regional QM-K3 key comparisons. In the following, not all pair-wise degrees of equivalence are explicitely computed. |
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
NOMINAL VALUES for Propane : 2.05 mmol/mol for CCQM-K3 and EUROMET.QM-K3, 1.95 mmol/mol for APMP.QM-K3, and 2 mmol/mol for COOMET.QM-K3
| Key comparison reference value: there is no single key comparison reference value for this comparison, the value xigrav is taken as the reference value for laboratory i. |
| The degree of equivalence of each laboratory i with respect to the reference value is given by a pair of terms: Di = (xi - xigrav) and Ui, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui = 2(ui2 + uigravR2)1/2. |
| The degree of equivalence between two laboratories i and j is given by a pair of terms: Dij =(Di - Dj) = (xi - xigrav) - (xj - xjgrav) and Uij, its expanded uncertainty (k = 2), both expressed in mmol/mol, Uij = 2(ui2 + uj2 + uigrav2 + ujgrav2)1/2. |
| The gravimetric value xigrav-EUR is taken as the reference value for laboratory i participant in EUROMET.QM-K3. |
| The degree of equivalence of laboratory i participant in EUROMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-EUR = (xi-EUR - xigrav-EUR) and Ui-EUR, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-EUR = 2(ui-EUR2 + uigravR-EUR2)1/2. |
| The gravimetric value xigrav-APMP is taken as the reference value for laboratory i participant in APMP.QM-K3. |
| The degree of equivalence of laboratory i participant in APMP.QM-K3 with respect to the reference value is given by a pair of terms: Di-APMP = (xi-APMP - xigrav-APMP) and Ui-APMP, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-APMP = 2(ui-APMP2 + uigravR-APMP2)1/2. |
| The gravimetric value xigrav-COO is taken as the reference value for laboratory i participant in COOMET.QM-K3. |
| The degree of equivalence of laboratory i participant in COOMET.QM-K3 with respect to the reference value is given by a pair of terms: Di-COO = (xi-COO - xigrav-COO) and Ui-COO, its expanded uncertainty (k = 2), both expressed in mmol/mol, Ui-COO = (ULab i-COO2 + UigravR-COO2)1/2 (since uncertainties are all expanded with k = 2). Relative values, expressed in %, are also calculated. |
|
The regional QM-K3 key comparisons are linked to CCQM-K3 through the gravimetric values. It follows that: |
| The degrees of equivalence with respect to the reference value obtained in the regional QM-K3 key comparisons are transferred to CCQM-K3 without correction: Di = Di-RMO and Ui = Ui-RMO, with "RMO" = "EUR" or "APMP" or "COO" according to the case. |
|
The degree of equivalence between two laboratories i and j, one and the other participant in any one of the four comparisons, is given by a pair of terms: |
| These statements make it possible to extend the CCQM-K3 matrices of equivalence to participants in the regional QM-K3 key comparisons. In the following, not all pair-wise degrees of equivalence are explicitely computed. |
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xigrav : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR : combined standard uncertainty of xigrav
uigravR = (uigrav2 + uiver2)1/2, where uigrav and uiver are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav = 0.0002 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon monoxide,
uigrav = 0.00003 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon dioxide, and
uigrav = 0.00012 . xigrav and uiver = 0.00056 . xigrav, both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi-EUR : result of measurement carried out by laboratory i
ui-EUR : combined standard uncertainty of xi-EUR
xigrav-EUR : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-EUR : combined standard uncertainty of xigrav-EUR
u igravR-EUR = (uigrav-EUR2 + uiver-EUR2)1/2, where uigrav-EUR and uiver-EUR are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav-EUR = 0.0002 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon monoxide,
uigrav-EUR = 0.00003 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon dioxide, and
uigrav-EUR = 0.00012 . xigrav-EUR and uiver-EUR = 0.00056 . xigrav-EUR , both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
28 mmol/mol |
| Carbon dioxide |
124 mmol/mol |
|
| Propane |
1.95 mmol/mol |
|
| Nitrogen |
Balance |
xi-APMP : result of measurement carried out by laboratory i
ui-APMP : combined standard uncertainty of xi-APMP
xigrav-APMP : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-APMP : combined standard uncertainty of xigrav-APMP
uigravR-APMP = (uigrav-APMP2 + uiver-APMP2)1/2, where uigrav-APMP and
uiver-APMP are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
The relative expanded uncertainty (k=2) linked to the verification process is estimated to be equal to 0.10%.
|
NOMINAL VALUES : |
Carbon monoxide |
30 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2 mmol/mol |
|
| Nitrogen |
Balance |
xi-COO : result of measurement carried out by laboratory i
ULab i-COO : expanded uncertainty (k = 2) of xi-COO
xigrav-COO : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
UigravR-COO : expanded uncertainty (k = 2) of xigrav-COO
UigravR-COO / 2 = (uigrav-COO2 + uiver-COO2)1/2, where uigrav-COO and
uiver-COO are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xigrav : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR : combined standard uncertainty of xigrav
uigravR = (uigrav2 + uiver2)1/2, where uigrav and uiver are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav = 0.0002 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon monoxide,
uigrav = 0.00003 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon dioxide, and
uigrav = 0.00012 . xigrav and uiver = 0.00056 . xigrav, both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi-EUR : result of measurement carried out by laboratory i
ui-EUR : combined standard uncertainty of xi-EUR
xigrav-EUR : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-EUR : combined standard uncertainty of xigrav-EUR
u igravR-EUR = (uigrav-EUR2 + uiver-EUR2)1/2, where uigrav-EUR and uiver-EUR are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav-EUR = 0.0002 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon monoxide,
uigrav-EUR = 0.00003 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon dioxide, and
uigrav-EUR = 0.00012 . xigrav-EUR and uiver-EUR = 0.00056 . xigrav-EUR , both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
28 mmol/mol |
| Carbon dioxide |
124 mmol/mol |
|
| Propane |
1.95 mmol/mol |
|
| Nitrogen |
Balance |
xi-APMP : result of measurement carried out by laboratory i
ui-APMP : combined standard uncertainty of xi-APMP
xigrav-APMP : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-APMP : combined standard uncertainty of xigrav-APMP
uigravR-APMP = (uigrav-APMP2 + uiver-APMP2)1/2, where uigrav-APMP and
uiver-APMP are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
The relative expanded uncertainty (k=2) linked to the verification process is estimated to be equal to 0.10%.
|
NOMINAL VALUES : |
Carbon monoxide |
30 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2 mmol/mol |
|
| Nitrogen |
Balance |
xi-COO : result of measurement carried out by laboratory i
ULab i-COO : expanded uncertainty (k = 2) of xi-COO
xigrav-COO : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
UigravR-COO : expanded uncertainty (k = 2) of xigrav-COO
UigravR-COO / 2 = (uigrav-COO2 + uiver-COO2)1/2, where uigrav-COO and
uiver-COO are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
CCQM-K3 was placed in the KCDB archives on 18 September 2023
CCQM-K3, EUROMET.QM-K3, APMP.QM-K3 and COOMET.QM-K3
MEASURAND : Amount-of-substance fraction of automotive emission gases
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xigrav : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR : combined standard uncertainty of xigrav
uigravR = (uigrav2 + uiver2)1/2, where uigrav and uiver are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav = 0.0002 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon monoxide,
uigrav = 0.00003 . xigrav and uiver = 0.0003 . xigrav, both in mmol/mol, for Carbon dioxide, and
uigrav = 0.00012 . xigrav and uiver = 0.00056 . xigrav, both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
32 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2.05 mmol/mol |
|
| Nitrogen |
Balance |
xi-EUR : result of measurement carried out by laboratory i
ui-EUR : combined standard uncertainty of xi-EUR
xigrav-EUR : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-EUR : combined standard uncertainty of xigrav-EUR
u igravR-EUR = (uigrav-EUR2 + uiver-EUR2)1/2, where uigrav-EUR and uiver-EUR are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value, with
uigrav-EUR = 0.0002 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon monoxide,
uigrav-EUR = 0.00003 . xigrav-EUR and uiver-EUR = 0.0003 . xigrav-EUR , both in mmol/mol, for Carbon dioxide, and
uigrav-EUR = 0.00012 . xigrav-EUR and uiver-EUR = 0.00056 . xigrav-EUR , both in mmol/mol, for Propane.
|
NOMINAL VALUES : |
Carbon monoxide |
28 mmol/mol |
| Carbon dioxide |
124 mmol/mol |
|
| Propane |
1.95 mmol/mol |
|
| Nitrogen |
Balance |
xi-APMP : result of measurement carried out by laboratory i
ui-APMP : combined standard uncertainty of xi-APMP
xigrav-APMP : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
uigravR-APMP : combined standard uncertainty of xigrav-APMP
uigravR-APMP = (uigrav-APMP2 + uiver-APMP2)1/2, where uigrav-APMP and
uiver-APMP are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
The relative expanded uncertainty (k=2) linked to the verification process is estimated to be equal to 0.10%.
|
NOMINAL VALUES : |
Carbon monoxide |
30 mmol/mol |
| Carbon dioxide |
135 mmol/mol |
|
| Propane |
2 mmol/mol |
|
| Nitrogen |
Balance |
xi-COO : result of measurement carried out by laboratory i
ULab i-COO : expanded uncertainty (k = 2) of xi-COO
xigrav-COO : gravimetric value of the gas amount-of-substance fraction in the cylinder received by laboratory i
UigravR-COO : expanded uncertainty (k = 2) of xigrav-COO
UigravR-COO / 2 = (uigrav-COO2 + uiver-COO2)1/2, where uigrav-COO and
uiver-COO are respectively the combined standard uncertainties of the gravimetric production process and of the analytical verification of the gravimetric value.
