CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 1 kg silicon sphere
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
(a) Silicon sphere PTB02 at 1001 g
(b) Silicon sphere NPL01 at 984 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere BEV11 at 200 g
(b) Silicon sphere SiK2 at 239 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere CZ2KB at 35 g
(b) Silicon sphere CZ2KA at 35 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 430 cm3
ARTIFACT 1 kg silicon sphere
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
(a) Silicon sphere PTB02 at 430 cm3
(b) Silicon sphere NPL01 at 422 cm3
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 100 cm3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere BEV11 at 85.9 cm3
(b) Silicon sphere SiK2 at 102 cm3
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 15 cm3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere CZ2KB at 14.9 cm3
(b) Silicon sphere CZ2KA at 14.9 cm3
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 1 kg silicon sphere
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kg/m3 |
kg/m3 |
kg/m3 |
||
| NMIJ | -1.04E-04 | 2.40E-04 | ||
| PTB | -1.35E-04 | 3.73E-03 | ||
| INRIM | -2.00E-04 | 3.99E-03 | ||
| KRISS | 9.22E-04 | 1.11E-03 | ||
| METAS | 4.59E-03 | 4.58E-03 | ||
| NRC | -3.78E-03 | 6.32E-03 | ||
| CEM | 3.75E-04 | 4.43E-03 | ||
| CENAM | -5.22E-03 | 7.19E-03 | ||
| CEM | -4.30E-04 | 2.65E-03 | ||
| DZM | -1.30E-04 | 8.71E-03 | ||
| GUM | 5.56E-03 | 5.25E-03 | ||
| INRIM | -2.10E-04 | 6.70E-04 | ||
| LNE | -6.23E-03 | 9.71E-03 | ||
| METAS | 3.37E-03 | 4.63E-03 | ||
| MIKES | 6.37E-03 | 1.60E-02 | ||
| NMIJ | -3.00E-05 | 8.60E-04 | ||
| NPL | -8.30E-04 | 5.62E-03 | ||
| PTB | 3.00E-05 | 7.70E-04 | ||
| UME | -6.30E-04 | 3.04E-03 | ||
| BEV | 8.00E-04 | 8.60E-03 | ||
| CEM | -1.10E-03 | 3.00E-03 | ||
| EIM | -2.00E-03 | 5.00E-03 | ||
| INM | 4.00E-04 | 3.60E-03 | ||
| METAS | -3.50E-02 | 4.60E-03 | ||
| NMIJ | -8.00E-04 | 1.80E-03 | ||
| PTB | -8.00E-04 | 8.00E-04 | ||
| VNIIM | -1.40E-02 | 1.90E-02 |
(a) Silicon sphere PTB02 at 1001 g
(b) Silicon sphere NPL01 at 984 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kg/m3 |
kg/m3 |
kg/m3 |
||
| NMIJ | -1.04E-04 | 2.40E-04 | ||
| PTB | -1.35E-04 | 3.73E-03 | ||
| INRIM | -2.00E-04 | 3.99E-03 | ||
| KRISS | 9.22E-04 | 1.11E-03 | ||
| METAS | 4.59E-03 | 4.58E-03 | ||
| NRC | -3.78E-03 | 6.32E-03 | ||
| CEM | 3.75E-04 | 4.43E-03 | ||
| CENAM | -5.22E-03 | 7.19E-03 | ||
| CEM | -9.00E-03 | 1.30E-01 | ||
| DZM | -3.30E-03 | 1.46E-02 | ||
| GUM | -1.06E-02 | 1.59E-02 | ||
| INRIM | -1.80E-03 | 2.70E-03 | ||
| LNE | -5.10E-02 | 3.10E-02 | ||
| METAS | 1.35E-02 | 1.83E-02 | ||
| MIKES | 3.00E-03 | 2.70E-02 | ||
| NMIJ | 0.00E+00 | 1.10E-02 | ||
| NPL | -3.00E-03 | 2.20E-02 | ||
| PTB | -1.60E-03 | 2.50E-03 | ||
| UME | -3.40E-02 | 3.10E-02 | ||
| BEV | -5.70E-03 | 1.20E-02 | ||
| CEM | -1.01E-02 | 1.00E-01 | ||
| EIM | -4.01E-02 | 8.00E-02 | ||
| INM | -1.81E-02 | 1.40E-02 | ||
| METAS | 8.90E-03 | 1.80E-02 | ||
| NMIJ | -2.10E-03 | 1.00E-02 | ||
| PTB | -8.00E-04 | 2.20E-03 | ||
| VNIIM | 2.89E-02 | 5.10E-02 |
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere BEV11 at 200 g
(b) Silicon sphere SiK2 at 239 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kg/m3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kg/m3 |
kg/m3 |
kg/m3 |
||
| NMIJ | -1.04E-04 | 2.40E-04 | ||
| PTB | -1.35E-04 | 3.73E-03 | ||
| INRIM | -2.00E-04 | 3.99E-03 | ||
| KRISS | 9.22E-04 | 1.11E-03 | ||
| METAS | 4.59E-03 | 4.58E-03 | ||
| NRC | -3.78E-03 | 6.32E-03 | ||
| CEM | 3.75E-04 | 4.43E-03 | ||
| CENAM | -5.22E-03 | 7.19E-03 | ||
| CEM | -3.28E-01 | 9.00E-01 | ||
| DZM | -5.70E-02 | 1.26E-01 | ||
| GUM | -5.00E-03 | 9.20E-02 | ||
| INRIM | -5.00E-03 | 1.50E-02 | ||
| LNE | -2.28E-01 | 1.70E-01 | ||
| METAS | 5.60E-02 | 1.25E-01 | ||
| MIKES | 2.20E-02 | 1.30E-01 | ||
| NMIJ | 2.00E-03 | 5.70E-02 | ||
| NPL | -3.20E-02 | 7.20E-02 | ||
| PTB | 1.40E-02 | 1.50E-02 | ||
| UME | -7.60E-02 | 1.18E-01 | ||
| BEV | -3.00E-02 | 3.60E-02 | ||
| CEM | -1.48E-01 | 9.00E-01 | ||
| EIM | -2.78E-01 | 5.00E-01 | ||
| INM | -1.80E-02 | 1.00E-01 | ||
| METAS | 3.20E-02 | 1.20E-01 | ||
| NMIJ | -1.50E-02 | 6.90E-02 | ||
| PTB | 1.70E-02 | 1.70E-02 | ||
| VNIIM | 7.30E-02 | 9.50E-02 |
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere CZ2KB at 35 g
(b) Silicon sphere CZ2KA at 35 g
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 430 cm3
ARTIFACT 1 kg silicon sphere
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mm3 |
mm3 |
mm3 |
||
| NMIJ | 3.76E-02 | 5.66E-02 | ||
| PTB | 3.06E-02 | 6.65E-01 | ||
| INRIM | 1.80E-02 | 7.34E-01 | ||
| KRISS | -1.80E-01 | 1.96E-01 | ||
| METAS | -8.43E-01 | 8.41E-01 | ||
| NRC | 6.61E-01 | 1.16E+00 | ||
| CEM | -2.34E-02 | 8.17E-01 | ||
| CENAM | 9.27E-01 | 1.30E+00 | ||
| CEM | 1.20E-01 | 4.90E-01 | ||
| DZM | -3.60E-01 | 1.60E+00 | ||
| GUM | -9.10E-01 | 1.28E+00 | ||
| INRIM | 2.00E-02 | 1.20E-01 | ||
| LNE | 1.14E+00 | 1.80E+00 | ||
| METAS | -6.20E-01 | 7.80E-01 | ||
| MIKES | -1.26E+00 | 2.90E+00 | ||
| NMIJ | 1.00E-02 | 1.70E-01 | ||
| NPL | 1.40E-01 | 1.00E+00 | ||
| PTB | -1.00E-02 | 1.40E-01 | ||
| UME | 1.10E-01 | 5.80E-01 | ||
| BEV | -2.30E-01 | 1.60E+00 | ||
| CEM | 1.90E-01 | 5.10E-01 | ||
| EIM | 7.70E-01 | 9.00E-01 | ||
| INM | -7.00E-02 | 5.40E-01 | ||
| METAS | 1.14E+01 | 8.50E-01 | ||
| NMIJ | 1.50E-01 | 3.50E-01 | ||
| PTB | 1.50E-01 | 1.50E-01 | ||
| VNIIM | 2.67E+00 | 3.40E+00 |
(a) Silicon sphere PTB02 at 430 cm3
(b) Silicon sphere NPL01 at 422 cm3
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 100 cm3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mm3 |
mm3 |
mm3 |
||
| NMIJ | 3.76E-02 | 5.66E-02 | ||
| PTB | 3.06E-02 | 6.65E-01 | ||
| INRIM | 1.80E-02 | 7.34E-01 | ||
| KRISS | -1.80E-01 | 1.96E-01 | ||
| METAS | -8.43E-01 | 8.41E-01 | ||
| NRC | 6.61E-01 | 1.16E+00 | ||
| CEM | -2.34E-02 | 8.17E-01 | ||
| CENAM | 9.27E-01 | 1.30E+00 | ||
| CEM | 2.90E-01 | 5.80E+00 | ||
| DZM | 9.00E-02 | 6.10E-01 | ||
| GUM | 4.10E-01 | 6.10E-01 | ||
| INRIM | 6.00E-02 | 9.00E-02 | ||
| LNE | 1.89E+00 | 1.14E+00 | ||
| METAS | -4.90E-01 | 8.00E-01 | ||
| MIKES | -1.10E-01 | 1.00E+00 | ||
| NMIJ | -1.00E-02 | 4.90E-01 | ||
| NPL | 1.00E-01 | 8.00E-01 | ||
| PTB | 7.00E-02 | 1.00E-01 | ||
| UME | 1.30E+00 | 1.14E+00 | ||
| BEV | 2.50E-01 | 4.60E-01 | ||
| CEM | 6.10E-01 | 4.60E+00 | ||
| EIM | 1.31E+00 | 4.00E+00 | ||
| INM | 8.20E-01 | 6.60E-01 | ||
| METAS | -4.00E-01 | 7.60E-01 | ||
| NMIJ | 7.00E-02 | 5.60E-01 | ||
| PTB | 3.00E-02 | 1.00E-01 | ||
| VNIIM | -1.19E+00 | 2.00E+00 |
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere BEV11 at 85.9 cm3
(b) Silicon sphere SiK2 at 102 cm3
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 15 cm3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mm3.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
mm3 |
mm3 |
mm3 |
||
| NMIJ | 3.76E-02 | 5.66E-02 | ||
| PTB | 3.06E-02 | 6.65E-01 | ||
| INRIM | 1.80E-02 | 7.34E-01 | ||
| KRISS | -1.80E-01 | 1.96E-01 | ||
| METAS | -8.43E-01 | 8.41E-01 | ||
| NRC | 6.61E-01 | 1.16E+00 | ||
| CEM | -2.34E-02 | 8.17E-01 | ||
| CENAM | 9.27E-01 | 1.30E+00 | ||
| CEM | 2.06E+00 | 5.80E+00 | ||
| DZM | 3.60E-01 | 8.00E-01 | ||
| GUM | 3.00E-02 | 6.00E-01 | ||
| INRIM | 4.00E-02 | 9.00E-02 | ||
| LNE | 1.46E+00 | 1.10E+00 | ||
| METAS | -3.60E-01 | 8.00E-01 | ||
| MIKES | -2.40E-01 | 8.00E-01 | ||
| NMIJ | -1.00E-02 | 3.80E-01 | ||
| NPL | 2.10E-01 | 5.00E-01 | ||
| PTB | -9.00E-02 | 1.00E-01 | ||
| UME | 5.10E-01 | 7.60E-01 | ||
| BEV | 1.80E-01 | 2.20E-01 | ||
| CEM | 9.30E-01 | 5.80E+00 | ||
| EIM | 1.83E+00 | 3.00E+00 | ||
| INM | 1.00E-01 | 6.40E-01 | ||
| METAS | -2.20E-01 | 7.50E-01 | ||
| NMIJ | 8.00E-02 | 5.00E-01 | ||
| PTB | -1.10E-01 | 1.10E-01 | ||
| VNIIM | -4.70E-01 | 8.00E-01 |
(1) data representing sphere of 1 kg to which EUAMET.M.D-K1.1 at 0.2 kg is linked
(a) Silicon sphere CZ2KB at 14.9 cm3
(b) Silicon sphere CZ2KA at 14.9 cm3
| Metrology area, Sub-field | Mass and related quantities, Density |
| Description | Density measurements of a silicon sphere |
| Time of measurements | 2001 - 2003 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Density: 2300 kg/m3 |
| Transfer device | 1 kg single-crystal silicon sphere |
| Comparison type | Key Comparison |
| Consultative Committee | CCM (Consultative Committee for Mass and Related Quantities) |
| Conducted by | CCM (Consultative Committee for Mass and Related Quantities) |
| Comments | Results published on 29 August 2006 Density of a 1 kg silicon sphere |
| Pilot institute |
NMIJ AIST
National Metrology Institute of Japan Japan |
| Contact person | K. Fujii +81 298 61 4316 |
| Pilot laboratory | |
|---|---|
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| CNR-IMGC |
Consiglio Nazionale delle Ricerche - Istituto di Metrologia G. Colonnetti (until 2006), Italy, EURAMET |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NRC |
National Research Council, Canada, SIM |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
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CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 1 kg silicon sphere
The key comparison reference value for density, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence
xR = 2329.083 62 kg/m3 and 2uR = 0.000 69 kg/m3
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, both expressed in (unit):
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui.
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
The key comparison reference value for density, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence
xR = 2329.083 62 kg/m3 and 2uR = 0.000 69 kg/m3
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, both expressed in (unit):
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui.
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
The key comparison reference value for density, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence
xR = 2329.083 62 kg/m3 and 2uR = 0.000 69 kg/m3
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, both expressed in (unit):
Di = (xi - xR) and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui.
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 430 cm3
ARTIFACT 1 kg silicon sphere
The key comparison reference value for volume, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence.
xR = 429.581 033 cm3 and 2uR = 0.000 135 cm3
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm3:
Di = (xi - xR) and Ui = 2(ui2 - uR2)1/2, its expanded uncertainty (k = 2).
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 100 cm3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
The key comparison reference value for volume, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence.
xR = 429.581 033 cm3 and 2uR = 0.000 135 cm3
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm3:
Di = (xi - xR) and Ui = 2(ui2 - uR2)1/2, its expanded uncertainty (k = 2).
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 15 cm3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
The key comparison reference value for volume, xR, and its standard uncertainty, uR, are determined from the weighted mean of the participants' results under the presence of covariances, see section 7.2 on page 11 and Appendix 2 on page 21 of the CCM.D-K1 Final Report. Only the first NMIJ data (labelled as "NMIJ-1") is used to calculate the reference values and the degrees of equivalence.
xR = 429.581 033 cm3 and 2uR = 0.000 135 cm3
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm3:
Di = (xi - xR) and Ui = 2(ui2 - uR2)1/2, its expanded uncertainty (k = 2).
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
Linking EURAMET.M.D-K1.1 to CCM.D-K1
The results of EURAMET.M.D-K1.1 were linked to CCM.D-K1 via CEM (Spain), INRIM (Italy), METAS (Switzerland), NMIJ-AIST (Japan) and PTB (Germany) who partiocipated in both comparisons. The linking process is described in Sections 5 and 6 of the EURAMET.M.D-K1.1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 1 kg silicon sphere
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Density
NOMINAL VALUE 2329 kg/m3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 430 cm3
ARTIFACT 1 kg silicon sphere
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 100 cm3
ARTIFACT 0.2 kg sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
CCM.D-K1 and EURAMET.M.D-K1.1
MEASURAND Volume
NOMINAL VALUE 15 cm3
ARTIFACT 35 g sphere (EURAMET.M.D-K1.1), 1 kg sphere (CCM.D-K1)
xi measured mass fraction reported by laboratory i, Labi
ui combined standard uncertainty of xi
CCM.D-K1
The measurement results are available in Section 7 of the CCM.D-K1 Final Report.
EURAMET.M.D-K1
The measurement results are available in Sections 4 and 5 of the EURAMET.M.D-K1 Final Report.
