CCM.P-K13, APMP.M.P-K13, EURAMET.M.P-K13 and EURAMET.M.P-K7
MEASURAND : Effective area A' (p', 20 °C) of piston-cylinder unit DH-Budenberg 4603 mounted in a DH-Budenberg pressure balance model 5306 determined from comparisons against participants primary pressure standards
NOMINAL VALUE : 2 mm2
NOMINAL PRESSURE : p' = 50 MPa
Graph of equivalence
Red diamonds: participants in CCM.P-K13
Blue triangles: participants in APMP.M.P-K13
Green squares: participants in EURAMET.M.P-K13
Orange circles: participants in EURAMET.M.P-K7
CCM.P-K13, APMP.M.P-K13, EURAMET.M.P-K13 and EURAMET.M.P-K7
MEASURAND : Effective area A' (p', 20 °C) of piston-cylinder unit DH-Budenberg 4603 mounted in a DH-Budenberg pressure balance model 5306 determined from comparisons against participants primary pressure standards
NOMINAL VALUE : 2 mm2
NOMINAL PRESSURE : p' = 50 MPa
Degrees of equivalence relative to the CCM.P-K3 key comparison reference value: Di and Ui (k = 2), both expressed in 10-6
Red: participants in CCM.P-K13
Blue: participants in APMP.M.P-K13
Green: participants in EURAMET.M.P-K13
Orange: participants in EURAMET.M.P-K7
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 | 2005 - 2007 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Pressure: 50 MPa to 500 MPa |
| Transfer device | Pressure balance |
| 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 | EURAMET Project No 881 |
| Comments | Results published on 29 July 2019 APMP.M.P-K13, EURAMET.M.P-K13 and EURAMET.M.P-K7 results are linked to those of CCM.P-K13 Hydraulic gauge pressure
|
| Pilot institute |
MIKES
VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus Finland |
| Contact person | S. Saxholm +358 50 4105 499 |
| CMI |
Czech Metrology Institute, Czechia, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| MIKES/VTT |
Mittatekniikan Keskus, Centre for Metrology and Accreditation, Finland, EURAMET |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| SMD |
Service de la Métrologie Belge, Belgium, EURAMET |
| SP |
Technical Research Institute of Sweden from 2017 Research Institutes of Sweden AB, Sweden, EURAMET |
| VSL |
VSL, Netherlands, 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-K13, APMP.M.P-K13, EURAMET.M.P-K13 and EURAMET.M.P-K7
MEASURAND : Effective area A' (p', 20 °C) of piston-cylinder unit DH-Budenberg 4603 mounted in a DH-Budenberg pressure balance model 5306 determined from comparisons against participants primary pressure standards
NOMINAL VALUE : 2 mm2
NOMINAL PRESSURE : p' = 50 MPa
|
The key comparison reference value, xR, is calculated as the median of the participants' values. The standard uncertainty of the key comparison reference value, uR, is calculated by the formula uR = 1.858 MED |xi - xR| / (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: Di = (xi - xR) / xR, the relative deviation from the reference value, and Ui = 2(ui2 + uDC2 + uR2)1/2 / xR, its expanded uncertainty (k = 2). |
|
When required, the degree of equivalence between two laboratories i and j is given by a pair of terms: No pair-wise degrees of equivalence are displayed here, but they can be found in the relevant Final Report. |
The results of the participants in APMP.M.P-K13 are linked to those of CCM.P-K13 through the results of the two linking laboratories, NMIJ and NPLI, as explained in Section 7 of the APMP.M.P-K13 Final Report.
The results of the participants in EURAMET.M.P-K13 are linked to those of CCM.P-K13 through the results of the linking laboratory, PTB, as explained in Section 6 of the EURAMET.M.P-K13 Final Report.
The results of the participants in EURAMET.M.P-K7 are linked to those of CCM.P-K13 through the results of the linking laboratory, PTB, as explained in Section 9 of the EURAMET.M.P-K7 Final Report.
CCM.P-K13, APMP.M.P-K13, EURAMET.M.P-K13 and EURAMET.M.P-K7
MEASURAND : Effective area A' (p', 20 °C) of piston-cylinder unit DH-Budenberg 4603 mounted in a DH-Budenberg pressure balance model 5306 determined from comparisons against participants primary pressure standards
NOMINAL VALUE : 2 mm2
NOMINAL PRESSURE : p' = 50 MPa
xi : result of measurement of A' (p', 20 °C) taken as the arithmetic average of 10 values obtained by laboratory i and corrected for drift
ui : combined standard uncertainty of xi as reported by laboratory i (without including uncertainty of the drift correction)
uDC : standard uncertainty of the drift correction of xi
uDC / xi = 0.5 x 10-6
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NIST |
1.961187 |
17 |
Jan 2009 |
| CENAM | 1.961171 | 85 | Mar 2009 |
| NPLI | 1.961104 | 44 | May 2009 |
| NIM | 1.961098 | 17 | Jun 2009 |
| NMIJ | 1.961152 | 17 | Oct 2009 |
| LNE | 1.961191 | 11 | Feb 2010 |
| PTB | 1.961148 | 15 | Mar 2010 |
The results of the participating laboratories in key comparison APMP.M.P-K13 are given in Section 6 of the Final Report.
Measurements were carried out between 2010 and 2013.
The results of the participating laboratories in key comparison EURAMET.M.P-K13 are given in Section 6 of the Final Report.
Measurements were carried out between 2009 and 2011.
The results of the participating laboratories in key comparison EURAMET.M.P-K7 are given in Section 7 of the Final Report.
Measurements were carried out between 2005 and 2007.
