CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 10 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 20 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 30 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 40 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 50 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 60 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 70 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 80 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 90 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 100 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Please click on the graph below for a closer view
Red diamonds: laboratories participant in CCM.P-K7
Green triangles: laboratories participant in APMP.M.P-K7 only
Blue squares: laboratories participant in EUROMET.M.P-K4 only
Orange circles: laboratories participant in APMP.M.P-K7.1 only
Pink asterisks: laboratories partipant in COOMET.M.P-K2 only
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 10 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Pair-wise degrees of equivalence among CCM.P-K7 and APMP.M.P-K7 and K7.1 participants
Lab i | D_{i} | U_{i} |
/ 10^{-6} | / 10^{-6} | |
PTB | 2.5 | 22 |
INRIM | 8.5 | 23 |
LNE | -3.7 | 16 |
NPL | -3.5 | 23 |
CENAM | 5.3 | 32 |
NIST | 31.9 | 39 |
NRC | -1.6 | 35 |
NMIJ | 0.0 | 27 |
NPLI | -11.5 | 61 |
CSIR-NML | -7.3 | 33 |
NIS | -38.2 | 43 |
KRISS | -10.9 | 49 |
SCL | 0.3 | 49 |
SPRING Singapore | -19.2 | 40 |
NMIA | -35.6 | 46 |
VMI-STAMEQ | -13.0 | 76 |
NML-SIRIM | -22.7 | 60 |
KIM-LIPI | 33.7 | 70 |
NIMT | 14.6 | 58 |
CMS/ITRI | 23.9 | 65 |
NIM | -17.3 | 38 |
MSL | 9.4 | 67 |
NML-SIRIM | -28.5 | 51 |
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 20 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 30 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 40 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 50 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Pair-wise degrees of equivalence among CCM.P-K7 and APMP.M.P-K7 and K7.1 participants
Lab i | D_{i} | U_{i} |
/ 10^{-6} | / 10^{-6} | |
PTB | 0.6 | 25 |
INRIM | 2.4 | 22 |
LNE | -5.3 | 15 |
NPL | 0.0 | 23 |
CENAM | -2.8 | 33 |
NIST | 7.0 | 37 |
NRC | 4.6 | 39 |
NMIJ | -0.5 | 28 |
NPLI | -5.2 | 49 |
CSIR-NML | -8.8 | 25 |
NIS | -8.2 | 32 |
KRISS | 0.7 | 43 |
SCL | -0.3 | 39 |
SPRING Singapore | -6.1 | 33 |
NMIA | -16.8 | 40 |
VMI-STAMEQ | 30.7 | 61 |
NML-SIRIM | -27.3 | 29 |
KIM-LIPI | 10.4 | 72 |
NIMT | -2.0 | 51 |
CMS/ITRI | 18.3 | 49 |
NIM | -9.6 | 30 |
MSL | -4.4 | 51 |
NML-SIRIM | -23.0 | 34 |
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 60 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 70 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 80 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 90 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 100 MPa
Degrees of equivalence, D_{i} and expanded uncertainty U_{i} (k = 2),
expressed in 10^{-6}
Pair-wise degrees of equivalence among CCM.P-K7 and APMP.M.P-K7 and K7.1 participants
Lab i | D_{i} | U_{i} |
/ 10^{-6} | / 10^{-6} | |
PTB | -0.1 | 36 |
INRIM | 7.2 | 23 |
LNE | -5.9 | 19 |
NPL | 8.3 | 25 |
CENAM | -9.5 | 38 |
NIST | 4.7 | 38 |
NRC | 7.2 | 46 |
NMIJ | 0.0 | 34 |
NPLI | -0.8 | 49 |
CSIR-NML | -8.9 | 26 |
NIS | -4.3 | 33 |
KRISS | 4.5 | 46 |
SCL | 52.7 | 105 |
SPRING Singapore | -4.5 | 38 |
NMIA | -24.7 | 45 |
VMI-STAMEQ | 4.8 | 56 |
NML-SIRIM | -30.2 | 28 |
KIM-LIPI | 8.0 | 82 |
NIMT | -3.9 | 51 |
CMS/ITRI | 15.1 | 50 |
NIM | -21.5 | 30 |
MSL | 38.6 | 84 |
NML-SIRIM | -18.7 | 58 |
Dark blue : laboratories participant in CCM.P-K7.
Green : laboratories participant in APMP.M.P-K7 only.
Blue : laboratories participant in EUROMET.M.P-K4 only.
Orange : laboratories participant in APMP.M.P-K7.1 only.
Pink : laboratories participants in COOMET.M.P-K2 only.
Results are presented under A4 printable format in Summary Results (.PDF file).
Metrology area, Sub-field | Mass and related quantities, Pressure |
Description | Pressure measurements in oil (gauge mode) |
Time of measurements | 1996 - 1999 |
Status | Approved for equivalence |
Final Reports of the comparisons | |
Measurand | Effective area of a piston-cylinder unit |
Parameters | Pressure: 10 MPa to 100 MPa |
Transfer device | Piston-cylinder unit |
Comparison type | Key Comparison |
Consultative Committee | CCM (Consultative Committee for Mass and Related Quantities) |
Conducted by | EURAMET (European Association of National Metrology Institutes) |
RMO Internal Identifier | EUROMET Project No 389 |
Comments | Publication of EUROMET.M.P-K4 results on 20 August 2008 APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4 and COOMET.M.P-K2 results are linked to those of CCM.P-K7 for all values of the nominal pressure |
Pilot institute |
NPL
National Physical Laboratory United Kingdom |
Contact person | M. Perkin +44 (0) 20 8943 6846 |
Pilot laboratory | |
---|---|
NPL |
National Physical Laboratory, United Kingdom, EURAMET |
CEM |
Centro Español de Metrologia, Spain, EURAMET |
CMI |
Czech Metrology Institute, Czechia, EURAMET |
INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
IPQ |
Instituto Portugues da Qualidade, Portugal, EURAMET |
LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
MIKES |
VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus, Finland, EURAMET |
NMi-VSL |
Nederlands Meetinstituut - Van Swinden Laboratorium (became VSL in 2009), Netherlands, EURAMET |
PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
SP |
Technical Research Institute of Sweden from 2017 Research Institutes of Sweden AB, Sweden, EURAMET |
UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Turkey, 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.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 10 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 10 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 10 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 9.999886 MPa u_{R-APMP} / p_{R-APMP} = 7.4 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 10 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 10.000000 MPa u_{R-APMP1} = 0.123 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 10 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 10 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 20 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 20 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 20 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 19.999935 MPa u_{R-APMP} / p_{R-APMP} = 4.5 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 20 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 19.999875 MPa u_{R-APMP1} = 0.165 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 20 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 20 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 30 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 30 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 30 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 29.999964 MPa u_{R-APMP} / p_{R-APMP} = 4.8 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 30 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 29.999812 MPa u_{R-APMP1} = 0.247 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 30 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 30 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 40 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 40 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 40 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 39.999978 MPa u_{R-APMP} / p_{R-APMP} = 4.0 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 40 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 39.999783 MPa u_{R-APMP1} = 0.286 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 40 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 40 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 50 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 50 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 50 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 49.999895 MPa u_{R-APMP} / p_{R-APMP} = 2.3 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 50 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 49.999807 MPa u_{R-APMP1} = 0.254 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 50 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 50 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 60 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 60 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 60 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 59.999784 MPa u_{R-APMP} / p_{R-APMP} = 2.8 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 60 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 60.000000 MPa u_{R-APMP1} = 0.313 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 60 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 60 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 70 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 70 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 70 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 69.999778 MPa u_{R-APMP} / p_{R-APMP} = 2.6 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 70 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 70.000000 MPa u_{R-APMP1} = 1.131 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 70 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 70 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 80 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 80 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 80 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 79.999787 MPa u_{R-APMP} / p_{R-APMP} = 3.1 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 80 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 80.000000 MPa u_{R-APMP1} = 2.213 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 80 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 80 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 90 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 90 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 90 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 89.999956 MPa u_{R-APMP} / p_{R-APMP} = 2.8 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 90 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 90.000000 MPa u_{R-APMP1} = 2.341 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 90 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 90 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 100 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 100 MPa
The key comparison reference value, x_{R}, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, u_{R}, is calculated by the formula u_{R} = 1.858 MED |x_{i} - x_{R}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. |
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: D_{i} = (x_{i} - x_{R}) / x_{R}, the relative deviation from the reference value, and U_{i} = 2(u_{i}^{2} + u_{R}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j is given by a pair of terms: D_{ij} = D_{i} - D_{j} = (x_{i} - x_{j}) / x_{R}, the relative difference between their results, and U_{ij} = 2(u_{i}^{2} + u_{j}^{2})^{1/2} / x_{R}, its expanded uncertainty (k = 2). The degrees of equivalence by pairs are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 100 MPa
The APMP.M.P-K7 reference value, p_{R-APMP}, is calculated as the median of the participants' values. The standard uncertainty of the reference value, u_{R-APMP}, is calculated by the formula u_{R-APMP} = 1.858 MED |p_{i-APMP} - p_{R-APMP}| / (n - 1)^{1/2}, where MED means median and n is the number of participants. p_{R-APMP} = 99.999874 MPa u_{R-APMP} / p_{R-APMP} = 3.3 10^{-6} |
The degree of equivalence of laboratory i participant in APMP.M.P-K7 with respect to the reference value of the APMP comparison is given by a pair of terms: D_{iAPMP} = (p_{iAPMP} - p_{R-APMP}) / p_{R-APMP}, the relative deviation from the reference value, and U_{iAPMP} = 2(u_{iAPMP}^{2} + u_{R-APMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
The degree of equivalence between two laboratories i and j participating in APMP.M.P-K7 is given by a pair of terms: D_{ijAPMP} = D_{iAPMP} - D_{jAPMP} = (p_{iAPMP} - p_{jAPMP}) / p_{R-APMP}, the relative difference between their results, and U_{ijAPMP} = 2(u_{iAPMP}^{2} + u_{jAPMP}^{2})^{1/2} / p_{R-APMP}, its expanded uncertainty (k = 2). |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 100 MPa
The APMP.M.P-K7.1 reference value, p_{R-APMP1}, and associated standard uncertainty, u_{R-APMP1}, are computed as in APMP.M.P-K7. p_{R-APMP1} = 100.000000 MPa u_{R-APMP1} = 2.450 kPa |
The degrees of equivalence inside APMP.M.P-K7.1 are computed as in APMP.M.P-K7. |
NOMINAL VALUE : p_{NOM} = 100 MPa
The linkage of the results of APMP.M.P-K7 to those of CCM.P-K7 is ensured by the common participation in both comparisons of three laboratories: the NMIJ, the PTB, and the NPLI. The same method is applied to APMP.M.P-K7.1 results, the linkage being ensured by the common participation of NMIJ (see Section 8 of the APMP.M.P-K7.1 Final Report). |
The degree of equivalence of laboratory i having participated only in APMP.M.P-K7 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{APMP} + X_{CCM} - Y_{APMP} and U_{i} = U_{i}_{APMP}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
The degree of equivalence between one laboratory i having participated in CCM.P-K7 and one laboratory j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{i} - D_{j}, and U_{ij} = (U_{i}^{2} + U_{j}^{2})^{1/2}, its expanded uncertainty (k = 2). The degree of equivalence between two laboratories i and j having participated only in APMP.M.P-K7 is given by a pair of terms: D_{ij} = D_{ij}_{APMP}, and U_{ij} = U_{ij}_{APMP}, its expanded uncertainty (k = 2). These statements make it possible to extend the CCM.P-K7 matrix of equivalence to all participants in the APMP key comparisons only. The complete matrices of equivalence are computed here only for three values of the nominal pressure: 10 MPa, 50 MPa, and 100 MPa. |
NOMINAL VALUE : p_{NOM} = 100 MPa
The linkage of the results of EUROMET.M.P-K4 to those of CCM.P-K7 is ensured by the common participation in both comparisons of four laboratories: INRIM, LNE, NPL and PTB. |
The degree of equivalence of laboratory i having participated only in EUROMET.M.P-K4 with respect to the CCM.P-K7 key comparison reference value is given by a pair of terms: D_{i} = D_{i}_{EUR} + X_{CCM} - Y_{EUR} and U_{i} = U_{i}_{EUR}, its expanded uncertainty (k = 2). This statement makes it possible to build up the complete graph of equivalence. |
No pair-wise degrees of equivalence have been computed for laboratories participating only in key comparison EUROMET.M.P-K4. |
The linkage of the results of COOMET.M.P-K2 to those of CCM.P-K7 is ensured by the common participation in both comparisons of two laboratories: NPL and PTB. The linkage process is detailed in Section 7.4 of the COOMET.M.P-K2 Final Report. This makes it possible to extend the CCM.P-K7 Matrices of equivalence to include the laboratories participant in COOMET.M.P-K2 only. The numerical values for the degrees of equivalence are given for ten nominal pressures from 10 MPa to 100 MPa, and those for the pair-wise degrees of equivalence between participants in COOMET.M.P-K2 only can be found from Table 5 to 14 in the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 10 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 10 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.805591 |
11 |
Feb 2003 |
LNE | 9.805472 | 7.8 | Mar 2003 |
NPL | 9.805474 | 11 | May 2003 |
CENAM | 9.805560 | 16 | Aug 2003 |
NIST | 9.805821 | 19 | Sep 2003 |
NRC | 9.805492 | 18 | Oct 2003 |
NMIJ | 9.805508 | 13 | Jan 2004 |
NPLI | 9.805395 | 30 | Mar 2004 |
PTB | 9.805533 | 11 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 10 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
10.00000 |
15 |
Dec 2003 |
NPLI | 9.99969 | 28 | Dec 2002 |
CSIR-NML | 9.99990 | 15 | Jan 2003 |
NIS | 9.99960 | 20 | Mar 2003 |
KRISS | 9.99987 | 23 | Jun 2003 |
SCL | 9.99998 | 23 | Jul 2003 |
SPRING Singapore | 9.99979 | 19 | Aug 2004 |
NMIA | 9.99962 | 22 | Sep 2004 |
VMI-STAMEQ | 9.99985 | 37 | Oct 2003 |
NML-SIRIM |
9.99975 |
29 |
Dec 2002 |
KIM-LIPI |
10.00031 |
34 |
Jan 2003 |
PTB | 10.00006 | 15 | Jun 2003 |
NIMT |
10.00012 |
28 |
Jul 2003 |
CMS/ITRI |
10.00022 |
32 |
Sep 2003 |
NIM | 9.99980 | 17 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 10 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
10.00000 |
15 |
Nov 2007 |
MSL | 10.00009 | 31 | Sep 2007 |
NML-SIRIM | 9.99971 | 22 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 10 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i | x_{i-EUR} / mm^{2} |
U_{Labi-EUR }/ mm^{2} | Date of measurement |
NPL1 | 9.806014 | 0.000238 | 28 to 30 Aug 96 |
CEM | 9.805940 | 0.000140 | May 97 |
SP | 9.805902 | 0.000206 | 17 to 19 Jun 97 |
MIKES | 9.805850 | 0.000294 | 22 to 23 Jul 97 |
NPL2 | 9.806005 | 0.000238 | 24 Sep to 03 Oct 97 |
NMi-VSL | 9.806030 | 0.000588 | 10 to 11 Feb 98 |
INRIM | 9.805982 | 0.000264 | 07 to 24 Apr 98 |
UME | 9.806055 | 0.000397 | 25 May to 08 Jun 98 |
LNE | 9.806032 | 0.000151 | 26 Jun to 01 Jul 98 |
METAS | 9.805550 | 0.000588 | 20 to 28 Oct 98 |
PTB | 9.805915 | 0.000218 | 23 to 26 Nov 98 |
IPQ | 9.805953 | 0.000549 | 04 to 16 Mar 99 |
NPL3 | 9.806033 | 0.000238 | 19 to 22 Mar 99 |
CMI | 9.805907 | 0.000343 | Dec 99 |
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 10 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1 , EUROMET.M.P-K4 and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 20 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 20 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.805629 |
11 |
Feb 2003 |
LNE | 9.805569 | 6.9 | Mar 2003 |
NPL | 9.805601 | 11 | May 2003 |
CENAM | 9.805650 | 16 | Aug 2003 |
NIST | 9.805823 | 19 | Sep 2003 |
NRC | 9.805618 | 18 | Oct 2003 |
NMIJ | 9.805602 | 13 | Jan 2004 |
NPLI | 9.805523 | 28 | Mar 2004 |
PTB | 9.805629 | 11 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 20 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
20.00000 |
14 |
Dec 2003 |
NPLI | 19.99977 | 26 | Dec 2002 |
CSIR-NML | 19.99971 | 13 | Jan 2003 |
NIS | 19.99951 | 17 | Mar 2003 |
KRISS | 19.99987 | 21 | Jun 2003 |
SCL | 20.00008 | 18 | Jul 2003 |
SPRING Singapore | 19.99975 | 17 | Aug 2004 |
NMIA | 19.99954 | 20 | Sep 2004 |
VMI-STAMEQ | 20.00074 | 37 | Oct 2003 |
NML-SIRIM |
19.99969 |
21 |
Dec 2002 |
KIM-LIPI |
20.00041 |
34 |
Jan 2003 |
PTB | 20.00001 | 12 | Jun 2003 |
NIMT |
20.00013 |
26 |
Jul 2003 |
CMS/ITRI |
20.00035 |
26 |
Sep 2003 |
NIM | 19.99976 | 16 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 20 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
20.00000 |
14 |
Nov 2007 |
MSL | 19.99987 | 25 | Sep 2007 |
NML-SIRIM | 19.99949 | 19 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 20 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806094
0.000255
28 to 30 Aug 96
CEM
9.805990
0.000136
May 97
SP
9.805945
0.000196
17 to 19 Jun 97
MIKES
9.805970
0.000294
22 to 23 Jul 97
NPL2
9.806091
0.000255
24 Sep to 03 Oct 97
NMi-VSL
9.806120
0.000588
10 to 11 Feb 98
INRIM
9.805995
0.000254
07 to 24 Apr 98
UME
9.806142
0.000396
25 May to 08 Jun 98
LNE
9.805996
0.000124
26 Jun to 01 Jul 98
METAS
9.805660
0.000588
20 to 28 Oct 98
PTB
9.806025
0.000218
23 to 26 Nov 98
IPQ
9.806078
0.000549
04 to 16 Mar 99
NPL3
9.806104
0.000255
19 to 22 Mar 99
CMI
9.806071
0.000343
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 20 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 30 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 30 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.805721 |
11 |
Feb 2003 |
LNE | 9.805667 | 6.8 | Mar 2003 |
NPL | 9.805705 | 11 | May 2003 |
CENAM | 9.805740 | 16 | Aug 2003 |
NIST | 9.805869 | 19 | Sep 2003 |
NRC | 9.805724 | 18 | Oct 2003 |
NMIJ | 9.805714 | 14 | Jan 2004 |
NPLI | 9.805644 | 24 | Mar 2004 |
PTB | 9.805724 | 11 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 30 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
30.00000 |
13 |
Dec 2003 |
NPLI | 29.99958 | 26 | Dec 2002 |
CSIR-NML | 29.99968 | 12 | Jan 2003 |
NIS | 29.99964 | 16 | Mar 2003 |
KRISS | 29.99993 | 21 | Jun 2003 |
SCL | 30.00010 | 18 | Jul 2003 |
SPRING Singapore | 29.99980 | 16 | Aug 2004 |
NMIA | 29.99948 | 19 | Sep 2004 |
VMI-STAMEQ | 30.00143 | 36 | Oct 2003 |
NML-SIRIM |
29.99944 |
16 |
Dec 2002 |
KIM-LIPI |
30.00059 |
34 |
Jan 2003 |
PTB | 30.00000 | 12 | Jun 2003 |
NIMT |
30.00029 |
26 |
Jul 2003 |
CMS/ITRI |
30.00044 |
27 |
Sep 2003 |
NIM | 29.99973 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 30 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
30.00000 |
14 |
Nov 2007 |
MSL | 29.99981 | 23 | Sep 2007 |
NML-SIRIM | 29.99923 | 17 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 30 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806180
0.000273
28 to 30 Aug 96
CEM
9.806080
0.000136
May 97
SP
9.806028
0.000196
17 to 19 Jun 97
MIKES
9.806070
0.000294
22 to 23 Jul 97
NPL2
9.806177
0.000273
24 Sep to 03 Oct 97
NMi-VSL
9.806190
0.000588
10 to 11 Feb 98
INRIM
9.806079
0.000251
07 to 24 Apr 98
UME
9.806249
0.000396
25 May to 08 Jun 98
LNE
9.806047
0.000118
26 Jun to 01 Jul 98
METAS
9.805780
0.000588
20 to 28 Oct 98
PTB
9.806122
0.000222
23 to 26 Nov 98
IPQ
9.806186
0.000549
04 to 16 Mar 99
NPL3
9.806189
0.000273
19 to 22 Mar 99
CMI
9.806206
0.000343
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 30 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 40 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 40 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.805825 |
11 |
Feb 2003 |
LNE | 9.805759 | 7.0 | Mar 2003 |
NPL | 9.805807 | 11 | May 2003 |
CENAM | 9.805820 | 16 | Aug 2003 |
NIST | 9.805914 | 19 | Sep 2003 |
NRC | 9.805841 | 19 | Oct 2003 |
NMIJ | 9.805809 | 14 | Jan 2004 |
NPLI | 9.805745 | 24 | Mar 2004 |
PTB | 9.805820 | 12 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 40 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
40.00000 |
14 |
Dec 2003 |
NPLI | 39.99952 | 26 | Dec 2002 |
CSIR-NML | 39.99968 | 12 | Jan 2003 |
NIS | 39.99959 | 16 | Mar 2003 |
KRISS | 40.00002 | 22 | Jun 2003 |
SCL | 40.00009 | 18 | Jul 2003 |
SPRING Singapore | 39.99976 | 16 | Aug 2004 |
NMIA | 39.99932 | 20 | Sep 2004 |
VMI-STAMEQ | 40.00139 | 31 | Oct 2003 |
NML-SIRIM |
39.99910 |
15 |
Dec 2002 |
KIM-LIPI |
40.00069 |
35 |
Jan 2003 |
PTB | 40.00001 | 12 | Jun 2003 |
NIMT |
40.00008 |
25 |
Jul 2003 |
CMS/ITRI |
40.00074 |
25 |
Sep 2003 |
NIM | 39.99960 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 40 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
40.00000 |
14 |
Nov 2007 |
MSL | 39.99978 | 24 | Sep 2007 |
NML-SIRIM | 39.99898 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 40 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806261
0.000291
28 to 30 Aug 96
CEM
9.806150
0.000135
May 97
SP
9.806112
0.000206
17 to 19 Jun 97
MIKES
9.806170
0.000294
22 to 23 Jul 97
NPL2
9.806268
0.000291
24 Sep to 03 Oct 97
NMi-VSL
9.806300
0.000588
10 to 11 Feb 98
INRIM
9.806181
0.000258
07 to 24 Apr 98
UME
9.806344
0.000396
25 May to 08 Jun 98
LNE
9.806101
0.000116
26 Jun to 01 Jul 98
METAS
9.805880
0.000588
20 to 28 Oct 98
PTB
9.806219
0.000228
23 to 26 Nov 98
IPQ
9.806297
0.000549
04 to 16 Mar 99
NPL3
9.806303
0.000291
19 to 22 Mar 99
CMI
9.806300
0.000343
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 40 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 50 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 50 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.805931 |
11 |
Feb 2003 |
LNE | 9.805855 | 7.2 | Mar 2003 |
NPL | 9.805907 | 11 | May 2003 |
CENAM | 9.805880 | 16 | Aug 2003 |
NIST | 9.805975 | 19 | Sep 2003 |
NRC | 9.805952 | 19 | Oct 2003 |
NMIJ | 9.805902 | 14 | Jan 2004 |
NPLI | 9.805856 | 24 | Mar 2004 |
PTB | 9.805913 | 12 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 50 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
50.00000 |
14 |
Dec 2003 |
NPLI | 49.99976 | 26 | Dec 2002 |
CSIR-NML | 49.99958 | 12 | Jan 2003 |
NIS | 49.99961 | 16 | Mar 2003 |
KRISS | 50.00005 | 22 | Jun 2003 |
SCL | 50.00000 | 19 | Jul 2003 |
SPRING Singapore | 49.99971 | 17 | Aug 2004 |
NMIA | 49.99918 | 20 | Sep 2004 |
VMI-STAMEQ | 50.00155 | 31 | Oct 2003 |
NML-SIRIM |
49.99865 |
14 |
Dec 2002 |
KIM-LIPI |
50.00054 |
36 |
Jan 2003 |
PTB | 50.00003 | 12 | Jun 2003 |
NIMT |
49.99992 |
25 |
Jul 2003 |
CMS/ITRI |
50.00093 |
24 |
Sep 2003 |
NIM | 49.99954 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 50 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
50.00000 |
14 |
Nov 2007 |
MSL | 49.99981 | 25 | Sep 2007 |
NML-SIRIM | 49.99887 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 50 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806366
0.000308
28 to 30 Aug 96
CEM
9.806230
0.000136
May 97
SP
9.806272
0.000392
17 to 19 Jun 97
MIKES
9.806270
0.000294
22 to 23 Jul 97
NPL2
9.806369
0.000308
24 Sep to 03 Oct 97
NMi-VSL
9.806380
0.000588
10 to 11 Feb 98
INRIM
9.806277
0.000254
07 to 24 Apr 98
UME
9.806439
0.000396
25 May to 08 Jun 98
LNE
9.806194
0.000116
26 Jun to 01 Jul 98
METAS
9.805840
0.000588
20 to 28 Oct 98
PTB
9.806310
0.000235
23 to 26 Nov 98
IPQ
9.806397
0.000549
04 to 16 Mar 99
NPL3
9.806394
0.000308
19 to 22 Mar 99
CMI
9.806412
0.000353
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 50 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 60 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 60 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.806025 |
11 |
Feb 2003 |
LNE | 9.805946 | 7.5 | Mar 2003 |
NPL | 9.806008 | 12 | May 2003 |
CENAM | 9.805960 | 17 | Aug 2003 |
NIST | 9.806044 | 19 | Sep 2003 |
NRC | 9.806062 | 20 | Oct 2003 |
NMIJ | 9.805992 | 14 | Jan 2004 |
NPLI | 9.805961 | 24 | Mar 2004 |
PTB | 9.806004 | 13 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 60 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
60.00000 |
14 |
Dec 2003 |
NPLI | 59.99988 | 26 | Dec 2002 |
CSIR-NML | 59.99943 | 12 | Jan 2003 |
NIS | 59.99950 | 16 | Mar 2003 |
KRISS | 60.00008 | 22 | Jun 2003 |
SCL | 59.99967 | 20 | Jul 2003 |
SPRING Singapore | 59.99966 | 17 | Aug 2004 |
NMIA | 59.99897 | 20 | Sep 2004 |
VMI-STAMEQ | 60.00143 | 28 | Oct 2003 |
NML-SIRIM |
59.99814 |
14 |
Dec 2002 |
KIM-LIPI |
60.00068 |
37 |
Jan 2003 |
PTB | 60.00016 | 13 | Jun 2003 |
NIMT |
60.00013 |
26 |
Jul 2003 |
CMS/ITRI |
60.00093 |
25 |
Sep 2003 |
NIM | 59.99934 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 60 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
60.00000 |
14 |
Nov 2007 |
MSL | 60.00024 | 27 | Sep 2007 |
NML-SIRIM | 59.99872 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 60 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806471
0.000326
28 to 30 Aug 96
CEM
9.806320
0.000136
May 97
SP
9.806386
0.000382
17 to 19 Jun 97
MIKES
9.806340
0.000294
22 to 23 Jul 97
NPL2
9.806462
0.000326
24 Sep to 03 Oct 97
NMi-VSL
9.806480
0.000588
10 to 11 Feb 98
INRIM
9.806370
0.000253
07 to 24 Apr 98
UME
9.806530
0.000397
25 May to 08 Jun 98
LNE
9.806285
0.000118
26 Jun to 01 Jul 98
METAS
9.805950
0.000588
20 to 28 Oct 98
PTB
9.806398
0.000243
23 to 26 Nov 98
IPQ
9.806494
0.000549
04 to 16 Mar 99
NPL3
9.806498
0.000326
19 to 22 Mar 99
CMI
9.806527
0.000353
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 60 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 70 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 70 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.806133 |
11 |
Feb 2003 |
LNE | 9.806035 | 7.8 | Mar 2003 |
NPL | 9.806116 | 12 | May 2003 |
CENAM | 9.806030 | 17 | Aug 2003 |
NIST | 9.806125 | 19 | Sep 2003 |
NRC | 9.806165 | 21 | Oct 2003 |
NMIJ | 9.806085 | 15 | Jan 2004 |
NPLI | 9.806059 | 24 | Mar 2004 |
PTB | 9.806091 | 14 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 70 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
70.00000 |
15 |
Dec 2003 |
NPLI | 70.00025 | 25 | Dec 2002 |
CSIR-NML | 69.99957 | 12 | Jan 2003 |
NIS | 69.99968 | 16 | Mar 2003 |
KRISS | 70.00028 | 22 | Jun 2003 |
SCL | 69.99950 | 22 | Jul 2003 |
SPRING Singapore | 69.99980 | 17 | Aug 2004 |
NMIA | 69.99880 | 20 | Sep 2004 |
VMI-STAMEQ | 70.00099 | 28 | Oct 2003 |
NML-SIRIM |
69.99807 |
14 |
Dec 2002 |
KIM-LIPI |
70.00082 |
38 |
Jan 2003 |
PTB | 70.00002 | 13 | Jun 2003 |
NIMT |
69.99976 |
25 |
Jul 2003 |
CMS/ITRI |
70.00130 |
25 |
Sep 2003 |
NIM | 69.99920 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 70 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
70.00000 |
15 |
Nov 2007 |
MSL | 70.00086 | 28 | Sep 2007 |
NML-SIRIM | 69.99852 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 70 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806571
0.000344
28 to 30 Aug 96
CEM
9.806400
0.000136
May 97
SP
9.806468
0.000382
17 to 19 Jun 97
MIKES
9.806420
0.000294
22 to 23 Jul 97
NPL2
9.806563
0.000344
24 Sep to 03 Oct 97
NMi-VSL
9.806560
0.000588
10 to 11 Feb 98
INRIM
9.806461
0.000257
07 to 24 Apr 98
UME
9.806623
0.000397
25 May to 08 Jun 98
LNE
9.806384
0.000120
26 Jun to 01 Jul 98
METAS
9.806070
0.000588
20 to 28 Oct 98
PTB
9.806481
0.000253
23 to 26 Nov 98
IPQ
9.806590
0.000549
04 to 16 Mar 99
NPL3
9.806582
0.000344
19 to 22 Mar 99
CMI
9.806610
0.000373
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 70 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 80 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 80 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.806222 |
11 |
Feb 2003 |
LNE | 9.806121 | 8.1 | Mar 2003 |
NPL | 9.806222 | 12 | May 2003 |
CENAM | 9.806110 | 18 | Aug 2003 |
NIST | 9.806213 | 19 | Sep 2003 |
NRC | 9.806255 | 21 | Oct 2003 |
NMIJ | 9.806173 | 15 | Jan 2004 |
NPLI | 9.806161 | 24 | Mar 2004 |
PTB | 9.806178 | 15 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 80 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
80.00000 |
15 |
Dec 2003 |
NPLI | 80.00025 | 25 | Dec 2002 |
CSIR-NML | 79.99946 | 12 | Jan 2003 |
NIS | 79.99979 | 16 | Mar 2003 |
KRISS | 80.00035 | 22 | Jun 2003 |
SCL | 79.99922 | 23 | Jul 2003 |
SPRING Singapore | 79.99971 | 18 | Aug 2004 |
NMIA | 79.99847 | 20 | Sep 2004 |
VMI-STAMEQ | 80.00127 | 27 | Oct 2003 |
NML-SIRIM |
79.99789 |
14 |
Dec 2002 |
KIM-LIPI |
80.00070 |
39 |
Jan 2003 |
PTB | 80.00008 | 14 | Jun 2003 |
NIMT |
79.99978 |
25 |
Jul 2003 |
CMS/ITRI |
80.00147 |
25 |
Sep 2003 |
NIM | 79.99888 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 80 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
80.00000 |
15 |
Nov 2007 |
MSL | 80.00170 | 30 | Sep 2007 |
NML-SIRIM | 79.99832 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 80 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi}_{-EUR }/ mm^{2}
Date of measurement
NPL1
9.806668
0.000361
28 to 30 Aug 96
CEM
9.806480
0.000136
May 97
SP
9.806520
0.000373
17 to 19 Jun 97
MIKES
9.806510
0.000294
22 to 23 Jul 97
NPL2
9.806648
0.000361
24 Sep to 03 Oct 97
NMi-VSL
9.806650
0.000588
10 to 11 Feb 98
INRIM
9.806552
0.000258
07 to 24 Apr 98
UME
9.806709
0.000398
25 May to 08 Jun 98
LNE
9.806472
0.000124
26 Jun to 01 Jul 98
METAS
9.806170
0.000588
20 to 28 Oct 98
PTB
9.806571
0.000265
23 to 26 Nov 98
IPQ
9.806687
0.000549
04 to 16 Mar 99
NPL3
9.806699
0.000361
19 to 22 Mar 99
CMI
9.806673
0.000382
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 80 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 90 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 90 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.806314 |
11 |
Feb 2003 |
LNE | 9.806205 | 8.4 | Mar 2003 |
NPL | 9.806327 | 12 | May 2003 |
CENAM | 9.806180 | 18 | Aug 2003 |
NIST | 9.806306 | 19 | Sep 2003 |
NRC | 9.806341 | 22 | Oct 2003 |
NMIJ | 9.806263 | 16 | Jan 2004 |
NPLI | 9.806255 | 24 | Mar 2004 |
PTB | 9.806262 | 16 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 90 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
90.00000 |
16 |
Dec 2003 |
NPLI | 90.00026 | 25 | Dec 2002 |
CSIR-NML | 89.99945 | 12 | Jan 2003 |
NIS | 89.99991 | 16 | Mar 2003 |
KRISS | 90.00047 | 23 | Jun 2003 |
SCL | 90.00398 | 48 | Jul 2003 |
SPRING Singapore | 89.99977 | 18 | Aug 2004 |
NMIA | 89.99817 | 21 | Sep 2004 |
VMI-STAMEQ | 90.00051 | 27 | Oct 2003 |
NML-SIRIM |
89.99760 |
14 |
Dec 2002 |
KIM-LIPI |
90.00082 |
40 |
Jan 2003 |
PTB | 90.00011 | 14 | Jun 2003 |
NIMT |
89.99980 |
25 |
Jul 2003 |
CMS/ITRI |
90.00146 |
25 |
Sep 2003 |
NIM | 89.99854 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 90 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
90.00000 |
16 |
Nov 2007 |
MSL | 90.00273 | 32 | Sep 2007 |
NML-SIRIM | 89.99822 | 15 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 90 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806763
0.000379
28 to 30 Aug 96
CEM
9.806560
0.000136
May 97
SP
9.806600
0.000373
17 to 19 Jun 97
MIKES
9.806590
0.000294
22 to 23 Jul 97
NPL2
9.806751
0.000379
24 Sep to 03 Oct 97
NMi-VSL
9.806730
0.000588
10 to 11 Feb 98
INRIM
9.806642
0.000261
07 to 24 Apr 98
UME
9.806800
0.000398
25 May to 08 Jun 98
LNE
9.806568
0.000126
26 Jun to 01 Jul 98
METAS
9.806270
0.000588
20 to 28 Oct 98
PTB
9.806652
0.000277
23 to 26 Nov 98
IPQ
9.806785
0.000549
04 to 16 Mar 99
NPL3
9.806784
0.000379
19 to 22 Mar 99
CMI
9.806774
0.000392
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 90 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.
CCM.P-K7, APMP.M.P-K7, APMP.M.P-K7.1, EUROMET.M.P-K4, and COOMET.M.P-K2
NOMINAL PRESSURE : p_{NOM} = 100 MPa
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH 1017 mounted in a DH pressure balance model 5306, determined from comparisons against participants primary pressure sandards
NOMINAL VALUE : 10 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 100 MPa
x_{i} : result of measurement, as A (p, 20 °C) based on the arithmetic average of 10 values obtained by laboratory i
u_{i} : combined standard uncertainty of x_{i}
Lab i | x_{i} / mm^{2} |
u_{i} / x_{i} / 10^{-6} |
Date of measurement |
INRIM |
9.806424 |
11 |
Feb 2003 |
LNE | 9.806295 | 8.7 | Mar 2003 |
NPL | 9.806434 | 12 | May 2003 |
CENAM | 9.806260 | 19 | Aug 2003 |
NIST | 9.806399 | 19 | Sep 2003 |
NRC | 9.806424 | 23 | Oct 2003 |
NMIJ | 9.806353 | 17 | Jan 2004 |
NPLI | 9.806345 | 24 | Mar 2004 |
PTB | 9.806352 | 17 | Jun 2004 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 100 MPa
p_{i}_{APMP }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7
u_{iAPMP }: combined standard uncertainty of p_{iAPMP}
Lab i | p_{iAPMP} / MPa |
u_{iAPMP} / p_{iAPMP} / 10^{-6} |
Date of measurement |
NMIJ |
100.00000 |
16 |
Dec 2003 |
NPLI | 100.00030 | 25 | Dec 2002 |
CSIR-NML | 99.99925 | 12 | Jan 2003 |
NIS | 99.99970 | 16 | Mar 2003 |
KRISS | 100.00058 | 23 | Jun 2003 |
SCL | 100.00541 | 52 | Jul 2003 |
SPRING Singapore | 99.99968 | 19 | Aug 2004 |
NMIA | 99.99767 | 22 | Sep 2004 |
VMI-STAMEQ | 100.00061 | 28 | Oct 2003 |
NML-SIRIM |
99.99711 |
14 |
Dec 2002 |
KIM-LIPI |
100.00094 |
41 |
Jan 2003 |
PTB | 100.00015 | 15 | Jun 2003 |
NIMT |
99.99975 |
25 |
Jul 2003 |
CMS/ITRI |
100.00164 |
25 |
Sep 2003 |
NIM | 99.99798 | 15 | Nov 2003 |
MEASURAND : Pressure
NOMINAL VALUE : p_{NOM} = 100 MPa
p_{i}_{APMP1 }: result of expected mean pressure obtained by laboratory i participating in key comparison APMP.M.P-K7.1
u_{iAPMP1 }: combined standard uncertainty of p_{iAPMP1}
Lab i | p_{iAPMP1} / MPa |
u_{iAPMP1} / p_{iAPMP1} / 10^{-6} |
Date of measurement |
NMIJ |
100.00000 |
16 |
Nov 2007 |
MSL | 100.00386 | 34 | Sep 2007 |
NML-SIRIM | 99.99813 | 16 | Dec 2007 |
MEASURAND : Effective area A (p, 20 °C) of piston-cylinder unit DH
NOMINAL VALUE : 9.8 mm^{2}NOMINAL PRESSURE : p_{NOM} = 100 MPa
x_{i-EUR}_{ }: mean reported result of effective area A (p, 20 °C) obtained by laboratory i participating in key comparison EUROMET.M.P-K4
U_{Labi-EUR}_{ }: expanded uncertainty (k = 2) of x_{i-EUR}
Lab i
x_{i-EUR}
/ mm^{2}U_{Labi-EUR }/ mm^{2}
Date of measurement
NPL1
9.806854
0.000397
28 to 30 Aug 96
CEM
9.806650
0.000136
May 97
SP
9.806645
0.000373
17 to 19 Jun 97
MIKES
9.806680
0.000294
22 to 23 Jul 97
NPL2
9.806840
0.000397
24 Sep to 03 Oct 97
NMi-VSL
9.806810
0.000588
10 to 11 Feb 98
INRIM
9.806727
0.000263
07 to 24 Apr 98
UME
9.806888
0.000399
25 May to 08 Jun 98
LNE
9.806663
0.000129
26 Jun to 01 Jul 98
METAS
9.806360
0.000588
20 to 28 Oct 98
PTB
9.806742
0.000290
23 to 26 Nov 98
IPQ
9.806876
0.000549
04 to 16 Mar 99
NPL3
9.806884
0.000397
19 to 22 Mar 99
CMI
9.806893
0.000412
Dec 99
MEASURAND : Effective area A(p, 20 °C) of piston-cylinder unit C04 determined from comparisons against participants pressure standards
NOMINAL VALUE : 9.81 mm^{2}
NOMINAL PRESSURE : p_{NOM} = 100 MPa
The pressure-dependent effective areas averaged for each nominal pressure (A_{p}) from the participants in COOMET.M.P-K2, and the combined standard uncertainties are given in Table 1 on page 15 of the COOMET.M.P-K2 Final Report.