CCM.M-K2, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, EURAMET.M.M-K2.3, and EURAMET.M.M-K2.5
MEASURAND : Mass
NOMINAL VALUE : 10 kg
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg: Click here to view the Graph of equivalence
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 500 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg: Click here to view the Graph of equivalence
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 20 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg: Click here to view the Graph of equivalence
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 2 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg: Click here to view the Graph of equivalence
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 100 mg
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg: Click here to view the Graph of equivalence
CCM.M-K2, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, EURAMET.M.M-K2.3, and EURAMET.M.M-K2.5
MEASURAND : Mass
NOMINAL VALUE : 10 kg
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg
In dark blue: laboratories participant in CCM.M-K2
In green: laboratories participant in EUROMET.M.M-K2
In orange: laboratories participant in EUROMET.M.M-K2.1
In pink: laboratories participant in APMP.M.M-K2
In purple: laboratory participant in EURAMET.M.M-K2.3
In blue: laboratories participant in EURAMET.M.M-K2.5
Results are presented under A4 printable format in Summary Results (PDF file).
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 500 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg
In dark blue: laboratories participant in CCM.M-K2
In blue: laboratories participant in APMP.M.M-K6
In green: laboratories participant in EUROMET.M.M-K2
In orange: laboratories participant in EUROMET.M.M-K2.1
In pink: laboratories participant in APMP.M.M-K2
In braun: laboratory participant in APMP.M.M-K2.1
In grey: laboratories participant in EURAMET.M.M-K2.2
In purple: laboratory participant in EURAMET.M.M-K2.3
In black: laboratory participant in EURAMET.M.M-K2.6
Results are presented under A4 printable format in Summary Results (PDF file).
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 20 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg
In dark blue: laboratories participant in CCM.M-K2
In blue: laboratories participant in APMP.M.M-K6
In green: laboratories participant in EUROMET.M.M-K2
In orange: laboratories participant in EUROMET.M.M-K2.1
In pink: laboratories participant in APMP.M.M-K2
In braun: laboratory participant in APMP.M.M-K2.1
In grey: laboratories participant in EURAMET.M.M-K2.2
In purple: laboratory participant in EURAMET.M.M-K2.3
In black: laboratory participant in EURAMET.M.M-K2.6
Results are presented under A4 printable format in Summary Results (PDF file).
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 2 g
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg
In dark blue: laboratories participant in CCM.M-K2
In blue: laboratories participant in APMP.M.M-K6
In green: laboratories participant in EUROMET.M.M-K2
In orange: laboratories participant in EUROMET.M.M-K2.1
In pink: laboratories participant in APMP.M.M-K2
In braun: laboratory participant in APMP.M.M-K2.1
In grey: laboratories participant in EURAMET.M.M-K2.2
In black: participant in EURAMET.M.M-K2.6
Results are presented under A4 printable format in Summary Results (PDF file).
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 100 mg
Degrees of equivalence: Di and expanded uncertainty Ui (at a 95 % level of confidence) expressed in mg
In dark blue: laboratories participant in CCM.M-K2
In blue: laboratories participant in APMP.M.M-K6
In green: laboratories participant in EUROMET.M.M-K2
In orange: laboratories participant in EUROMET.M.M-K2.1
In pink: laboratories participant in APMP.M.M-K2
In braun: laboratory participant in APMP.M.M-K2.1
In grey: laboratories participant in EURAMET.M.M-K2.2
In black: participant in EURAMET.M.M-K2.6
Results are presented under A4 printable format in Summary Results (PDF file).
| Metrology area, Sub-field | Mass and related quantities, Mass Standards |
| Description | Comparison of mass standards |
| Time of measurements | 1998 - 1999 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Mass: 100 mg, 2 g, 20 g, 500 g and 10 kg |
| Transfer device | Stainless steel standards |
| 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 | This comparison has been classified as superseded by the CCM and was placed in the KCDB archives on 6 January 2016. Results published on 25 November 2003 Comparison of multiples and submultiples of the kilogram APMP.M.M-K6, APMP.M.M-K2.1, EURAMET.M.M-K2.2, EURAMET.M.M-K2.3 and EURAMET.M.M-K2.6 results are linked to those of CCM.M-K2 for nominal values 500 g, 20 g, 2 g, and 100 mg.
|
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | M. Gläser +49 (0) 531 592 1110 |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| BNM-LNE |
Bureau National de Métrologie - Laboratoire National d'Essais, France, EURAMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| CNR-IMGC |
Consiglio Nazionale delle Ricerche - Istituto di Metrologia G. Colonnetti (until 2006), Italy, EURAMET |
| CSIRO-NML |
Commonwealth Scientific and Industrial Research Organization - National Measurement Laboratory; became National Measurement Institute, Australia, NMIA in 2004, Australia, APMP |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| NMi-VSL |
Nederlands Meetinstituut - Van Swinden Laboratorium (became VSL in 2009), Netherlands, EURAMET |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| NRC |
National Research Council, Canada, SIM |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
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" :
CCM.M-K2, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, EURAMET.M.M-K2.3, and EURAMET.M.M-K2.5
MEASURAND : Mass
NOMINAL VALUE : 10 kg
|
The key comparison reference value, xR, is evaluated as the median of the xi values. Its standard uncertainty is denoted uR, see Appendix 1 of the CCM.M-K2 Final Report. xR = 0.03 mg and uR = 0.12 mg |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Ui may be found in Section 5 of the CCM.M-K2 Final Report. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Uij may be found in Section 6 of the CCM.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2 Final Report.
| he degree of equivalence of each laboratory i participant in EUROMET.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2 are given in Table 6 to 10 of the EUROMET.M.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2.1 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2.1 are given in Table 7 to 11 of the EUROMET.M.M-K2.1 Final Report. |
The linking process is explained in section 7.3 of the APMP.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 7.3 of the APMP.M.M-K2 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The link is made through the EUROMET.M.M-K2 key comparison using EIM results in both comparisons (see Section 7 of the EURAMET.M.M-K2.3 Final Report).
| The pair-wise degrees of equivalence inside EURAMET.M.M-K2.3 are given in Table 5 of the EURAMET.M.M-K2.3 Final Report. |
The link is made through the results of the PTB having participated in both comparisons CCM.M-K2 and EURAMET.M.M-K2.5
(see page 6 of the EURAMET.M.M-K2.5 Final Report).
| No pair-wise degrees of equivalence involving EURAMET.M.M-K2.5 participants have been computed. |
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 500 g
|
The key comparison reference value, xR, is evaluated as the median of the xi values. Its standard uncertainty is denoted uR, see Appendix 1 of the CCM.M-K2 Final Report. xR = 0.005 mg and uR = 0.004 mg |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Ui may be found in Section 5 of the CCM.M-K2 Final Report. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Uij may be found in Section 6 of the CCM.M-K2 Final Report. |
|
The APMP.M.M-K6 results were analyzed and linked to the CCM.M-K2 results using Generalised Least-Squares (sometimes known as Gauss-Markov) estimation (see Section 7 of the APMP.M.M-K6 Final Report). |
| - the degree of equivalence of each laboratory participant in APMP.M.M-K6 with respect to the CCM.M-K2 key comparison reference value, Di and Ui, and |
| - the degrees of equivalence between two laboratories both participant in APMP.M.M-K6, Dij and Uij, Ui and Uij being the expanded uncertainties (k = 2) of Di and Dij respectively. The pair-wise degrees of equivalence inside APMP.M.M-K6 are given on pages 15 and 16 of the APMP.M.M-K6 Final Report. |
Artefacts of nominal value 1 kg are also measured in the framework of key comparison APMP.M.M-K6. This is reported together with CCM.M-K1 results.
The linking process is explained in Appendix A of the EUROMET.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2 are given in Table 6 to 10 of the EUROMET.M.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2.1 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2.1 are given in Table 7 to 11 of the EUROMET.M.M-K2.1 Final Report. |
The linking process is explained in section 7.3 of the APMP.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 7.3 of the APMP.M.M-K2 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The linking process is explained in section 6.2 of the APMP.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 6.2 of the APMP.M.M-K2.1 Final Report. |
| No pair-wise degrees of equivalence involving APMP.M.M-K2.1 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using BEV and EIM results in both comparisons (see Section 5 of the EURAMET.M.M-K2.2 Final Report).
| No pair-wise degrees of equivalence involving EURAMET.M.M-K2.2 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using EIM results in both comparisons (see Section 7 of the EURAMET.M.M-K2.3 Final Report).
| The pair-wise degrees of equivalence inside EURAMET.M.M-K2.3 are given in Table 5 of the EURAMET.M.M-K2.3 Final Report. |
The link is made through the results of NPL having participated in both comparisons (see Section 4 of the EURAMET.M.M-K2.6 Final Report).
|
No pair-wise degrees of equivalence involving EURAMET.M.M-K2.6 participants have been computed. |
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 20 g
|
The key comparison reference value, xR, is evaluated as the median of the xi values. Its standard uncertainty is denoted uR, see Appendix 1 of the CCM.M-K2 Final Report. xR = 0.0027 mg and uR = 0.0011 mg |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Ui may be found in Section 5 of the CCM.M-K2 Final Report. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Uij may be found in Section 6 of the CCM.M-K2 Final Report. |
|
The APMP.M.M-K6 results were analyzed and linked to the CCM.M-K2 results using Generalised Least-Squares (sometimes known as Gauss-Markov) estimation (see Section 7 of the APMP.M.M-K6 Final Report). |
| - the degree of equivalence of each laboratory participant in APMP.M.M-K6 with respect to the CCM.M-K2 key comparison reference value, Di and Ui, and |
| - the degrees of equivalence between two laboratories both participant in APMP.M.M-K6, Dij and Uij, Ui and Uij being the expanded uncertainties (k = 2) of Di and Dij respectively. The pair-wise degrees of equivalence inside APMP.M.M-K6 are given on pages 15 and 16 of the APMP.M.M-K6 Final Report. |
Artefacts of nominal value 1 kg are also measured in the framework of key comparison APMP.M.M-K6. This is reported together with CCM.M-K1 results.
The linking process is explained in Appendix A of the EUROMET.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2 are given in Table 6 to 10 of the EUROMET.M.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2.1 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2.1 are given in Table 7 to 11 of the EUROMET.M.M-K2.1 Final Report. |
The linking process is explained in section 7.3 of the APMP.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 7.3 of the APMP.M.M-K2 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The linking process is explained in section 6.2 of the APMP.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 6.2 of the APMP.M.M-K2.1 Final Report. |
| No pair-wise degrees of equivalence involving APMP.M.M-K2.1 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using BEV and EIM results in both comparisons (see Section 5 of the EURAMET.M.M-K2.2 Final Report).
| No pair-wise degrees of equivalence involving EURAMET.M.M-K2.2 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using EIM results in both comparisons (see Section 7 of the EURAMET.M.M-K2.3 Final Report).
| The pair-wise degrees of equivalence inside EURAMET.M.M-K2.3 are given in Table 5 of the EURAMET.M.M-K2.3 Final Report. |
The link is made through the results of NPL having participated in both comparisons (see Section 4 of the EURAMET.M.M-K2.6 Final Report).
| No pair-wise degrees of equivalence involving EURAMET.M.M-K2.6 participants have been computed. |
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 2 g
|
The key comparison reference value, xR, is evaluated as the median of the xi values. Its standard uncertainty is denoted uR, see Appendix 1 of the CCM.M-K2 Final Report. xR = 0.0007 mg and uR = 0.0004 mg |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Ui may be found in Section 5 of the CCM.M-K2 Final Report. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Uij may be found in Section 6 of the CCM.M-K2 Final Report. |
|
The APMP.M.M-K6 results were analyzed and linked to the CCM.M-K2 results using Generalised Least-Squares (sometimes known as Gauss-Markov) estimation (see Section 7 of the APMP.M.M-K6 Final Report). |
| - the degree of equivalence of each laboratory participant in APMP.M.M-K6 with respect to the CCM.M-K2 key comparison reference value, Di and Ui, and |
| - the degrees of equivalence between two laboratories both participant in APMP.M.M-K6, Dij and Uij, Ui and Uij being the expanded uncertainties (k = 2) of Di and Dij respectively. The pair-wise degrees of equivalence inside APMP.M.M-K6 are given on pages 15 and 16 of the APMP.M.M-K6 Final Report. |
Artefacts of nominal value 1 kg are also measured in the framework of key comparison APMP.M.M-K6. This is reported together with CCM.M-K1 results.
The linking process is explained in Appendix A of the EUROMET.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2 are given in Table 6 to 10 of the EUROMET.M.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2.1 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2.1 are given in Table 7 to 11 of the EUROMET.M.M-K2.1 Final Report. |
The linking process is explained in section 7.3 of the APMP.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 7.3 of the APMP.M.M-K2 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The linking process is explained in section 6.2 of the APMP.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 6.2 of the APMP.M.M-K2.1 Final Report. |
| No pair-wise degrees of equivalence involving APMP.M.M-K2.1 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using BEV and EIM results in both comparisons (see Section 5 of the EURAMET.M.M-K2.2 Final Report).
|
No pair-wise degrees of equivalence involving EURAMET.M.M-K2.2 participants have been computed. |
The link is made through the results of NPL having participated in both comparisons (see Section 4 of the EURAMET.M.M-K2.6 Final Report).
|
No pair-wise degrees of equivalence involving EURAMET.M.M-K2.6 participants have been computed. |
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 100 mg
|
The key comparison reference value, xR, is evaluated as the median of the xi values. Its standard uncertainty is denoted uR, see Appendix 1 of the CCM.M-K2 Final Report. xR = -0.0004 mg and uR = 0.0002 mg |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Ui may be found in Section 5 of the CCM.M-K2 Final Report. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. Detailed information on the evaluation of Uij may be found in Section 6 of the CCM.M-K2 Final Report. |
|
The APMP.M.M-K6 results were analyzed and linked to the CCM.M-K2 results using Generalised Least-Squares (sometimes known as Gauss-Markov) estimation (see Section 7 of the APMP.M.M-K6 Final Report). |
| - the degree of equivalence of each laboratory participant in APMP.M.M-K6 with respect to the CCM.M-K2 key comparison reference value, Di and Ui, and |
| - the degrees of equivalence between two laboratories both participant in APMP.M.M-K6, Dij and Uij, Ui and Uij being the expanded uncertainties (k = 2) of Di and Dij respectively. The pair-wise degrees of equivalence inside APMP.M.M-K6 are given on pages 15 and 16 of the APMP.M.M-K6 Final Report. |
Artefacts of nominal value 1 kg are also measured in the framework of key comparison APMP.M.M-K6. This is reported together with CCM.M-K1 results.
The linking process is explained in Appendix A of the EUROMET.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2 are given in Table 6 to 10 of the EUROMET.M.M-K2 Final Report. |
The linking process is explained in Appendix A of the EUROMET.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in EUROMET.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (at a 95% level of confidence), both expressed in mg. These are computed as explained in Appendix A of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between any of the laboratories participating in EUROMET.M.M-K2.1 and those participating in CCM.M-K2 are not computed. The pair-wise degrees of equivalence inside EUROMET.M.M-K2.1 are given in Table 7 to 11 of the EUROMET.M.M-K2.1 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The linking process is explained in section 7.3 of the APMP.M.M-K2 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 7.3 of the APMP.M.M-K2 Final Report. |
| The degrees of equivalence between two laboratories participating in APMP.M.M-K2 is given by a pair of terms both expressed in mg: Dij = Di - Dj, and its expanded uncertainty (k = 2) Uij. The pair-wise degrees of equivalence between any of the laboratories participating in APMP.M.M-K2 and those participating in CCM.M-K2 are not computed. |
The linking process is explained in section 6.2 of the APMP.M.M-K2.1 Final Report.
| The degree of equivalence of each laboratory i participant in APMP.M.M-K2.1 with respect to the CCM.M-K2 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in mg. These are computed as explained in section 6.2 of the APMP.M.M-K2.1 Final Report. |
| No pair-wise degrees of equivalence involving APMP.M.M-K2.1 participants have been computed. |
The link is made through the EUROMET.M.M-K2 key comparison using BEV and EIM results in both comparisons (see Section 5 of the EURAMET.M.M-K2.2 Final Report)
| No pair-wise degrees of equivalence involving EURAMET.M.M-K2.2 participants have been computed. |
The link is made through the results of NPL having participated in both comparisons (see Section 4 of the EURAMET.M.M-K2.6 Final Report).
|
No pair-wise degrees of equivalence involving EURAMET.M.M-K2.6 participants have been computed. |
CCM.M-K2, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, EURAMET.M.M-K2.3, and EURAMET.M.M-K2.5
MEASURAND : Mass
NOMINAL VALUE : 10 kg
x(rep)i : reported result obtained as the difference between the measurement of the mass standard carried out by laboratory i and its nominal value
ui : combined standard uncertainty of x(rep)i
Three sets of mass standards, designated as CA, CB and CC, were circulated.
For each set of mass standards the Pilot Laboratory, PTB, carried out two measurements: the first one before the circulation and the second one after the circulation, as indicated respectively by (1) and (2).
xi : difference between the mass determined by laboratory i, x(rep)i, and that determined by the Pilot Laboratory.
The Pilot's mass value is the average of the two results obtained before and after the circulation.
| Lab i | x(rep)i | ui | xi | Date of measurement | ||
| Set of mass standards CA | ||||||
| PTB (1) |
-2.135 |
0.122 | -0.006 | Mar 98 | ||
| NMIA |
-2.200 |
0.340 | -0.071 | Jul 98 | ||
| KRISS |
-2.296 |
0.148 | -0.167 | Aug 98 | ||
| NMIJ |
-1.930 |
0.280 | 0.199 | Sep 98 | ||
| NIM |
-1.700 |
0.500 | 0.429 | Nov 98 | ||
| PTB (2) |
-2.123 |
0.122 | 0.006 | Mar 99 | ||
| Set of mass standards CB | ||||||
| PTB (1) |
-3.071 |
0.122 | -0.019 | Mar 98 | ||
| NPL |
-3.200 |
0.150 | -0.149 | Aug 98 | ||
| CENAM |
-1.680 |
0.760 | 1.371 | Sep 98 | ||
| NRC |
-1.200 |
0.970 | 1.851 | Nov 98 | ||
| NIST |
-2.952 |
0.197 | 0.099 |
Dec 98 |
||
|
PTB (2) |
-3.032 |
0.122 |
0.019 |
Mar 99 |
||
| Set of mass standards CC | ||||||
| PTB (1) |
-8.542 |
0.122 |
-0.023 |
Mar 98 |
||
| VSL |
-8.900 |
1.100 |
-0.381 |
Jun 98 |
||
| SMU |
-6.870 |
0.860 |
1.649 |
Aug 98 |
||
| METAS |
-8.465 |
0.251 |
0.054 |
Sep 98 |
||
| LNE |
-8.800 |
0.300 |
-0.281 |
Oct 98 |
||
| INRIM |
-8.760 |
0.228 |
-0.241 |
Nov 98 |
||
| PTB (2) |
-8.496 |
0.122 |
0.023 |
Mar 99 |
||
Note: all values are expressed in mg
The results and uncertainties reported by the participants in EUROMET.M.M-K2 are given in Table 2 of the EUROMET.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EUROMET.M.M-K2.1 are given in Table 3 of the EUROMET.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2 are given in Table 1 of the APMP.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.3 are given in Table 2 of the EURAMET.M.M-K2.3 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.5 are given in Table 7 of the EURAMET.M.M-K2.5 Final Report.
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 500 g
Note: all values are expressed in mg
x(rep)i : reported result obtained as the difference between the measurement of the mass standard carried out by laboratory i and its nominal value
ui : combined standard uncertainty of x(rep)i
Three sets of mass standards, designated as CA, CB and CC, were circulated.
For each set of mass standards the Pilot Laboratory, PTB, carried out two measurements: the first one before the circulation and the second one after the circulation, as indicated respectively by (1) and (2).
xi : difference between the mass determined by laboratory i, x(rep)i, and that determined by the Pilot Laboratory.
The Pilot's mass value is the average of the two results obtained before and after the circulation.
| Lab i | x(rep)i | ui | xi | Date of measurement | ||
| Set of mass standards CA | ||||||
| PTB (1) |
-0.1801 |
0.0062 | -0.0028 | Mar 98 | ||
| NMIA |
-0.1820 |
0.0200 | -0.0047 | Jul 98 | ||
| KRISS |
-0.1719 |
0.0073 | 0.0054 | Aug 98 | ||
| NMIJ |
-0.1490 |
0.0080 | 0.0283 | Sep 98 | ||
| NIM |
-0.1700 |
0.0120 | 0.0073 | Nov 98 | ||
| PTB (2) |
-0.1745 |
0.0062 | 0.0028 | Mar 99 | ||
| Set of mass standards CB | ||||||
| PTB (1) |
-0.2149 |
0.0062 | -0.0019 | Mar 98 | ||
| NPL |
-0.2090 |
0.0074 | 0.0040 | Aug 98 | ||
| CENAM |
-0.1922 |
0.0094 | 0.0208 | Sep 98 | ||
| NRC |
-0.2062 |
0.0078 | 0.0068 | Nov 98 | ||
| NIST |
-0.2108 |
0.0081 | 0.0022 |
Dec 98 |
||
|
PTB (2) |
-0.2111 |
0.0062 |
0.0019 |
Mar 99 |
||
| Set of mass standards CC | ||||||
| PTB (1) |
-0.5135 |
0.0062 |
-0.0021 |
Mar 98 |
||
| VSL |
-0.5600 |
0.0200 |
-0.0487 |
Jun 98 |
||
| SMU |
-0.5140 |
0.0220 |
-0.0027 |
Aug 98 |
||
| METAS |
-0.5010 |
0.0151 |
0.0104 |
Sep 98 |
||
| LNE |
-0.5140 |
0.0150 |
-0.0027 |
Oct 98 |
||
| INRIM |
-0.4990 |
0.0076 |
0.0124 |
Nov 98 |
||
| PTB (2) |
-0.5092 |
0.0062 |
0.0021 |
Mar 99 |
||
xAPMP i : reported result obtained as the difference between the measurement of the mass standards carried out by laboratory i and its nominal value
uAPMP i : combined standard uncertainty of xAPMP i
As APMP.M.M-K6 Pilot Laboratory, VMI-STAMEQ determined the mass of the travelling standards four times for Loop A of the comparison, and three times for Loop B of the comparison.
| Lab i | xAPMP i | uAPMP i | Date of measurement | ||
| Loop A | |||||
| VMI-STAMEQ |
0.213 |
0.0207 | May 2005 | ||
| NMISA |
0.17 |
0.125 | June 2005 | ||
| NMIA |
0.228 |
0.024 | September 2005 | ||
| VMI-STAMEQ |
0.201 |
0.0374 | November 2005 | ||
| ITDI |
0.265 |
0.043 | December 2005 | ||
| NIMT |
0.237 |
0.038 | January 2006 | ||
| VMI-STAMEQ |
0.209 |
0.0374 | April 2006 | ||
| NIS |
- |
- | July 2006 | ||
| VMI-STAMEQ |
0.198 |
0.0374 | November 2006 | ||
| Loop B | |||||
| VMI-STAMEQ |
0.148 |
0.0207 |
May 2005 |
||
| MUSSD |
0.1216 |
0.133 |
June 2005 |
||
| NPLI |
0.191 |
0.041 |
October 2005 |
||
| VMI-STAMEQ |
0.139 |
0.0374 |
December 2005 |
||
| KIM-LIPI* |
- |
0.031 |
March 2006 |
||
| VMI-STAMEQ |
-4.45 |
0.0374 |
October 2006 |
||
* Measurement results invalidated due to damage of the transfer standards
The results and uncertainties reported by the participants in EUROMET.M.M-K2 are given in Table 2 of the EUROMET.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EUROMET.M.M-K2.1 are given in Table 3 of the EUROMET.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2 are given in Table 1 of the APMP.M.M-K2 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2.1 are given in Table 1 of the APMP.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.2 are given in Table 10 of the EURAMET.M.M-K2.2 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.3 are given in Table 2 of the EURAMET.M.M-K2.3 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.6 are given in Table 6 of the EURAMET.M.M-K2.6 Final Report.
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1, APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
EURAMET.M.M-K2.3, and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 20 g
Note: all values are expressed in mg
x(rep)i : reported result obtained as the difference between the measurement of the mass standard carried out by laboratory i and its nominal value
ui : combined standard uncertainty of x(rep)i
Three sets of mass standards, designated as CA, CB and CC, were circulated.
For each set of mass standards the Pilot Laboratory, PTB, carried out two measurements: the first one before the circulation and the second one after the circulation, as indicated respectively by (1) and (2).
xi : difference between the mass determined by laboratory i, x(rep)i, and that determined by the Pilot Laboratory.
The Pilot's mass value is the average of the two results obtained before and after the circulation.
| Lab i | x(rep)i | ui | xi | Date of measurement | ||
| Set of mass standards CA | ||||||
| PTB (1) |
-0.0052 |
0.0023 | -0.0009 | Mar 98 | ||
| NMIA |
-0.0053 |
0.0030 | -0.0011 | Jul 98 | ||
| KRISS |
-0.0029 |
0.0009 | 0.0014 | Aug 98 | ||
| NMIJ |
-0.0040 |
0.0020 | 0.0003 | Sep 98 | ||
| NIM |
-0.0015 |
0.0020 | 0.0028 | Nov 98 | ||
| PTB (2) |
-0.0033 |
0.0023 | 0.0010 | Mar 99 | ||
| Set of mass standards CB | ||||||
| PTB (1) |
-0.0035 |
0.0023 | 0.0007 | Mar 98 | ||
| NPL |
-0.0008 |
0.0009 | 0.0034 | Aug 98 | ||
| CENAM |
-0.0016 |
0.0021 | 0.0026 | Sep 98 | ||
| NRC |
-0.0015 |
0.0037 | 0.0027 | Nov 98 | ||
| NIST |
-0.0011 |
0.0010 | 0.0031 |
Dec 98 |
||
|
PTB (2) |
-0.0049 |
0.0023 |
-0.0007 |
Mar 99 |
||
| Set of mass standards CC | ||||||
| PTB (1) |
-0.0024 |
0.0023 |
0.0000 |
Mar 98 |
||
| VSL |
0.0020 |
0.0040 |
0.0044 |
Jun 98 |
||
| SMU |
-0.0119 |
0.0035 |
-0.0095 |
Aug 98 |
||
| METAS |
0.0064 |
0.0026 |
0.0088 |
Sep 98 |
||
| LNE |
0.0037 |
0.0026 |
0.0061 |
Oct 98 |
||
| INRIM |
-0.0039 |
0.0038 |
-0.0015 |
Nov 98 |
||
| PTB (2) |
-0.0024 |
0.0023 |
0.0000 |
Mar 99 |
||
xAPMP i : reported result obtained as the difference between the measurement of the mass standards carried out by laboratory i and its nominal value
uAPMP i : combined standard uncertainty of xAPMP i
As APMP.M.M-K6 Pilot Laboratory, VMI-STAMEQ determined the mass of the travelling standards four times for Loop A of the comparison, and three times for Loop B of the comparison.
| Lab i | xAPMP i | uAPMP i | Date of measurement | ||
| Loop A | |||||
| VMI-STAMEQ |
0.003 |
0.0022 | May 2005 | ||
| NMISA |
0.006 |
0.0135 | June 2005 | ||
| NMIA |
0.0026 |
0.0032 | September 2005 | ||
| VMI-STAMEQ |
0.0057 |
0.0029 | November 2005 | ||
| ITDI |
0.013 |
0.011 | December 2005 | ||
| NIMT |
-0.002 |
0.004 | January 2006 | ||
| VMI-STAMEQ |
-0.00074 |
0.0030 | April 2006 | ||
| NIS |
-0.018 |
0.009 | July 2006 | ||
| VMI-STAMEQ |
-0.0064 |
0.0030 | November 2006 | ||
| Loop B | |||||
| VMI-STAMEQ |
0.0005 |
0.0022 |
May 2005 |
||
| MUSSD |
0.0182 |
0.013 |
June 2005 |
||
| NPLI |
0.0099 |
0.0035 |
October 2005 |
||
| VMI-STAMEQ |
0.004 |
0.0041 |
December 2005 |
||
| KIM-LIPI |
0.009 |
0.0037 |
March 2006 |
||
| VMI-STAMEQ |
0.011 |
0.0036 |
October 2006 |
||
The results and uncertainties reported by the participants in EUROMET.M.M-K2 are given in Table 2 of the EUROMET.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EUROMET.M.M-K2.1 are given in Table 3 of the EUROMET.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2 are given in Table 1 of the APMP.M.M-K2 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2.1 are given in Table 1 of the APMP.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.2 are given in Table 10 of the EURAMET.M.M-K2.2 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.3 are given in Table 2 of the EURAMET.M.M-K2.3 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.6 are given in Table 6 of the EURAMET.M.M-K2.6 Final Report.
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 2 g
Note: all values are expressed in mg
x(rep)i : reported result obtained as the difference between the measurement of the mass standard carried out by laboratory i and its nominal value
ui : combined standard uncertainty of x(rep)i
Three sets of mass standards, designated as CA, CB and CC, were circulated.
For each set of mass standards the Pilot Laboratory, PTB, carried out two measurements: the first one before the circulation and the second one after the circulation, as indicated respectively by (1) and (2).
xi : difference between the mass determined by laboratory i, x(rep)i, and that determined by the Pilot Laboratory.
The Pilot's mass value is the average of the two results obtained before and after the circulation.
| Lab i | x(rep)i | ui | xi | Date of measurement | ||
| Set of mass standards CA | ||||||
| PTB (1) |
-0.0002 |
0.0007 | 0.0008 | Mar 98 | ||
| NMIA |
-0.0014 |
0.0006 | -0.0004 | Jul 98 | ||
| KRISS |
0.0004 |
0.0004 | 0.0014 | Aug 98 | ||
| NMIJ |
0.0004 |
0.0005 | 0.0014 | Sep 98 | ||
| NIM |
-0.0008 |
0.0006 | 0.0002 | Nov 98 | ||
| PTB (2) |
-0.0018 |
0.0007 | -0.0008 | Mar 99 | ||
| Set of mass standards CB | ||||||
| PTB (1) |
-0.0036 |
0.0007 | 0.0003 | Mar 98 | ||
| NPL |
-0.0031 |
0.0002 | 0.0008 | Aug 98 | ||
| CENAM |
-0.0032 |
0.0006 | 0.0007 | Sep 98 | ||
| NRC |
-0.0004 |
0.0015 | 0.0035 | Nov 98 | ||
| NIST |
-0.0025 |
0.0004 | 0.0013 |
Dec 98 |
||
|
PTB (2) |
-0.0041 |
0.0007 |
-0.0003 |
Mar 99 |
||
| Set of mass standards CC | ||||||
| PTB (1) |
0.0032 |
0.0007 |
0.0005 |
Mar 98 |
||
| VSL |
0.0010 |
0.0030 |
-0.0018 |
Jun 98 |
||
| SMU |
0.0034 |
0.0020 |
0.0007 |
Aug 98 |
||
| METAS |
0.0045 |
0.0010 |
0.0018 |
Sep 98 |
||
| LNE |
0.0043 |
0.0010 |
0.0016 |
Oct 98 |
||
| INRIM |
0.0012 |
0.0018 |
-0.0016 |
Nov 98 |
||
| PTB (2) |
0.0023 |
0.0007 |
-0.0005 |
Mar 99 |
||
xAPMP i : reported result obtained as the difference between the measurement of the mass standards carried out by laboratory i and its nominal value
uAPMP i : combined standard uncertainty of xAPMP i
As APMP.M.M-K6 Pilot Laboratory, VMI-STAMEQ determined the mass of the travelling standards four times for Loop A of the comparison, and three times for Loop B of the comparison.
| Lab i | xAPMP i | uAPMP i | Date of measurement | ||
| Loop A | |||||
| VMI-STAMEQ |
0.0125 |
0.001 | May 2005 | ||
| NMISA |
0.014 |
0.0065 | June 2005 | ||
| NMIA |
0.0128 |
0.0011 | September 2005 | ||
| VMI-STAMEQ |
0.0115 |
0.001 | November 2005 | ||
| ITDI |
0.006 |
0.01 | December 2005 | ||
| NIMT |
0.0112 |
0.0021 | January 2006 | ||
| VMI-STAMEQ |
0.011 |
0.001 | April 2006 | ||
| NIS |
-0.008 |
0.007 | July 2006 | ||
| VMI-STAMEQ |
0.0096 |
0.001 | November 2006 | ||
| Loop B | |||||
| VMI-STAMEQ |
-0.004 |
0.001 |
May 2005 |
||
| MUSSD |
-0.0049 |
0.007 |
June 2005 |
||
| NPLI |
-0.0017 |
0.0006 |
October 2005 |
||
| VMI-STAMEQ |
-0.005 |
0.001 |
December 2005 |
||
| KIM-LIPI |
-0.0023 |
0.0015 |
March 2006 |
||
| VMI-STAMEQ |
-0.004 |
0.001 |
October 2006 |
||
The results and uncertainties reported by the participants in EUROMET.M.M-K2 are given in Table 2 of the EUROMET.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EUROMET.M.M-K2.1 are given in Table 3 of the EUROMET.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2 are given in Table 1 of the APMP.M.M-K2 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2.1 are given in Table 1 of the APMP.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.2 are given in Table 10 of the EURAMET.M.M-K2.2 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.6 are given in Table 6 of the EURAMET.M.M-K2.6 Final Report.
CCM.M-K2, APMP.M.M-K6, EUROMET.M.M-K2, EUROMET.M.M-K2.1,
APMP.M.M-K2, APMP.M.M-K2.1, EURAMET.M.M-K2.2,
and EURAMET.M.M-K2.6
MEASURAND : Mass
NOMINAL VALUE : 100 mg
Note: all values are expressed in mg
x(rep)i : reported result obtained as the difference between the measurement of the mass standard carried out by laboratory i and its nominal value
ui : combined standard uncertainty of x(rep)i
Three sets of mass standards, designated as CA, CB and CC, were circulated.
For each set of mass standards the Pilot Laboratory, PTB, carried out two measurements: the first one before the circulation and the second one after the circulation, as indicated respectively by (1) and (2).
xi : difference between the mass determined by laboratory i, x(rep)i, and that determined by the Pilot Laboratory.
The Pilot's mass value is the average of the two results obtained before and after the circulation.
| Lab i | x(rep)i | ui | xi | Date of measurement | ||
| Set of mass standards CA | ||||||
| PTB (1) |
0.0000 |
0.0003 | 0.0002 | Mar 98 | ||
| NMIA |
-0.0005 |
0.0003 | -0.0003 | Jul 98 | ||
| KRISS |
-0.0011 |
0.0001 | -0.0009 | Aug 98 | ||
| NMIJ |
-0.0009 |
0.0002 | -0.0007 | Sep 98 | ||
| NIM |
-0.0007 |
0.0003 | -0.0005 | Nov 98 | ||
| PTB (2) |
-0.0004 |
0.0003 | -0.0002 | Mar 99 | ||
| Set of mass standards CB | ||||||
| PTB (1) |
-0.0002 |
0.0003 | -0.0001 | Mar 98 | ||
| NPL |
-0.0005 |
0.0004 | -0.0004 | Aug 98 | ||
| CENAM |
-0.0012 |
0.0004 | -0.0011 | Sep 98 | ||
| NRC |
-0.0003 |
0.0003 | -0.0002 | Nov 98 | ||
| NIST |
-0.0008 |
0.0001 | -0.0006 |
Dec 98 |
||
|
PTB (2) |
-0.0001 |
0.0003 |
0.0001 |
Mar 99 |
||
| Set of mass standards CC | ||||||
|
PTB (1) |
-0.0007 |
0.0003 |
0.0004 |
Mar 98 |
||
| VSL |
-0.0004 |
0.0008 |
0.0007 |
Jun 98 |
||
| SMU |
-0.0002 |
0.0010 |
0.0009 |
Aug 98 |
||
| METAS |
-0.0014 |
0.0003 |
-0.0004 |
Sep 98 |
||
| LNE |
-0.0019 |
0.0004 |
-0.0008 |
Oct 98 |
||
| INRIM |
-0.0019 |
0.0008 |
-0.0009 |
Nov 98 |
||
| PTB (2) |
-0.0014 |
0.0003 |
-0.0004 |
Mar 99 |
||
xAPMP i : reported result obtained as the difference between the measurement of the mass standards carried out by laboratory i and its nominal value
uAPMP i : combined standard uncertainty of xAPMP i
As APMP.M.M-K6 Pilot Laboratory, VMI-STAMEQ determined the mass of the travelling standards four times for Loop A of the comparison, and three times for Loop B of the comparison.
| Lab i | xAPMP i | uAPMP i | Date of measurement | ||
| Loop A | |||||
| VMI-STAMEQ |
-0.006 |
0.001 | May 2005 | ||
| NMISA |
-0.005 |
0.0025 | June 2005 | ||
| NMIA |
-0.0046 |
0.00047 | September 2005 | ||
| VMI-STAMEQ |
-0.008 |
0.001 | November 2005 | ||
| ITDI |
0.000 |
0.009 | December 2005 | ||
| NIMT |
0.0021 |
0.0008 | January 2006 | ||
| VMI-STAMEQ |
-0.005 |
0.001 | April 2006 | ||
| NIS |
-0.0054 |
0.0028 | July 2006 | ||
| VMI-STAMEQ |
-0.006 |
0.001 | November 2006 | ||
| Loop B | |||||
| VMI-STAMEQ |
0.0025 |
0.001 |
May 2005 |
||
| MUSSD |
-0.0026 |
0.0027 |
June 2005 |
||
| NPLI |
0.0034 |
0.0005 |
October 2005 |
||
| VMI-STAMEQ |
0.0028 |
0.001 |
December 2005 |
||
| KIM-LIPI |
0.0049 |
0.00066 |
March 2006 |
||
| VMI-STAMEQ |
0.0034 |
0.001 |
October 2006 |
||
The results and uncertainties reported by the participants in EUROMET.M.M-K2 are given in Table 2 of the EUROMET.M.M-K2 Final Report.
The results and uncertainties reported by the participants in EUROMET.M.M-K2.1 are given in Table 3 of the EUROMET.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2 are given in Table 1 of the APMP.M.M-K2 Final Report.
The results and uncertainties reported by the participants in APMP.M.M-K2.1 are given in Table 1 of the APMP.M.M-K2.1 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.2 are given in Table 10 of the EURAMET.M.M-K2.2 Final Report.
The results and uncertainties reported by the participants in EURAMET.M.M-K2.6 are given in Table 6 of the EURAMET.M.M-K2.6 Final Report.
