CCM.P-K1.c
MEASURAND : Effective area A' (p', 20 °C) of Piston-cylinder unit C-415
NOMINAL VALUE : 84 mm2
Degrees of equivalence, Di = (xi - xR) / xR versus p' for Piston-cylinder C-415
The coloured lines have no physical significance and are used only for participants identification. The expanded uncertainties are given in Degrees of equivalence.
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, APMP.M.P-K1.c.2, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 1 MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
CCM.P-K1.c, EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 4 MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c and EURAMET.M.P-K1.c
Nominal pressure from 0.6 MPa to 7 MPa MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
The coloured curves have no physical significance and are used only for participants identification. The expanded uncertainties are listed in Degrees of Equivalence.
CCM.P-K1.c MEASURAND : Effective area A' (p', 20 °C) of Piston-cylinder unit C-415 Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in 10-6 Full matrices of equivalence for pressures 79.4 kPa, 429.5 kPa and 896.4 kPa
NOMINAL VALUE : 84 mm2
| Lab i | Di | Ui |
| p' = 79.4 kPa | / 10-6 | / 10-6 |
| IMGC-CNR | 4.2 | 24.8 |
| BNM-LNE | 0.6 | 8.4 |
| PTB | 2.3 | 9.2 |
| NRLM | -4.3 | 18.0 |
| NIST | 0.3 | 18.2 |
| p' = 429.5 kPa | ||
| IMGC-CNR | -1.3 | 22.6 |
| BNM-LNE | 2.8 | 7.6 |
| PTB | 1.1 | 10.4 |
| NRLM | -2.1 | 17.8 |
| NIST | 0.0 | 20.2 |
| p' = 896.4 kPa | ||
| IMGC-CNR | -4.9 | 22.0 |
| BNM-LNE | 4.7 | 7.6 |
| PTB | 2.3 | 10.4 |
| NRLM | -1.9 | 17.2 |
| NIST | -0.2 | 22.8 |
The full matrices of equivalence are available in Summary Results (summary of the results as a .PDF file).
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, APMP.M.P-K1.c.2, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 1 MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
10-6 |
10-6 |
10-6 |
||
| IMGC-CNR | -5.6 | 26 | ||
| BNM-LNE | -2.9 | 16 | ||
| PTB | 0.4 | 17 | ||
| NMIJ | -7.5 | 21 | ||
| NIST | 7.3 | 23 | ||
| BEV | 19 | 44 | ||
| MIKES | -13 | 31 | ||
| CEM | 1 | 42 | ||
| SP/FFA | -3 | 31 | ||
| NPLI | 5.0 | 43 | ||
| KRISS | -10 | 36 | ||
| CSIRO-NML | -11 | 26 | ||
| MSL | -46 | 61 | ||
| SPRING Singapore | 12 | 65 | ||
| NML-SIRIM | -8.0 | 46 | ||
| SCL | -31 | 39 | ||
| CSIR-NML | 35 | 42 | ||
| NIS | -24 | 64 | ||
| CMS/ITRI | 0 | 51 | ||
| NIMT | 20 | 44 | ||
| FORCE | 30 | 122 | ||
| MIKES | 7.1 | 22 | ||
| NPL | -4.3 | 22 | ||
| UME | 21 | 22 | ||
| SMU | 10 | 40 | ||
| NSAI-NML | -7.7 | 33 | ||
| GUM | 5.3 | 34 | ||
| MKEH | 2.8 | 41 | ||
| NMISA | 7.7 | 35 | ||
| BIM | 57 | 91 | ||
| NIM | -5.6 | 28 | ||
| FORCE | 4.9 | 50 | ||
| UME | 5.3 | 32 | ||
| PTB | -0.8 | 26 | ||
| BEV | 6.6 | 29 | ||
| METAS | -1.8 | 26 | ||
| SMD | 18 | 44 | ||
| MCCAA | -8.8 | 31 | ||
| CEM | -0.6 | 29 | ||
| FSB-LPM | -12 | 33 | ||
| MIRS/IMT/LMT | 8.8 | 25 | ||
| SMU | -3.6 | 30 | ||
| IMBiH | 10 | 39 | ||
| INM | -21 | 60 | ||
| MKEH | -4.2 | 30 | ||
| INRIM | 4.9 | 27 | ||
| RISE | 3.5 | 43 | ||
| NPL | 7.1 | 24 | ||
| NSAI NML | 0.5 | 37 | ||
| GUM | 22 | 36 | ||
| VSL | 5.2 | 27 | ||
| VTT MIKES | -13 | 31 |
CCM.P-K1.c, EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 4 MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
10-6 |
10-6 |
10-6 |
||
| IMGC-CNR | -1.3 | 30 | ||
| BNM-LNE | -2.2 | 16 | ||
| PTB | 7.1 | 21 | ||
| NMIJ | -8.2 | 21 | ||
| NIST | 12 | 26 | ||
| BEV | 24 | 43 | ||
| MIKES | -12 | 27 | ||
| CEM | -4 | 41 | ||
| SP/FFA | 3 | 29 | ||
| NPLI | -4 | 43 | ||
| KRISS | -4 | 36 | ||
| CSIRO-NML | -17 | 26 | ||
| MSL | -48 | 61 | ||
| SPRING Singapore | 13 | 65 | ||
| NML-SIRIM | -13 | 46 | ||
| SCL | -28 | 39 | ||
| CSIR-NML | 25 | 36 | ||
| NIS | -13 | 48 | ||
| CMS/ITRI | -11 | 51 | ||
| NIMT | 20 | 41 | ||
| FORCE | 8 | 61 | ||
| MIKES | -2.4 | 24 | ||
| NPL | -19.3 | 26 | ||
| UME | 7 | 27 | ||
| SMU | -10 | 41 | ||
| NSAI-NML | -35.2 | 35 | ||
| GUM | -6.6 | 35 | ||
| MKEH | -7.0 | 42 | ||
| NMISA | -16.4 | 37 | ||
| BIM | 40 | 92 | ||
| FORCE | 11 | 43 | ||
| UME | 7.0 | 32 | ||
| PTB | 7.1 | 22 | ||
| BEV | 5.2 | 29 | ||
| METAS | -3.2 | 26 | ||
| SMD | 21 | 40 | ||
| MCCAA | -8.1 | 30 | ||
| CEM | 13 | 29 | ||
| FSB-LPM | 0.4 | 32 | ||
| MIRS/IMT/LMT | 11 | 24 | ||
| SMU | 2.3 | 29 | ||
| IMBiH | 10 | 38 | ||
| INM | -4.8 | 66 | ||
| MKEH | -0.3 | 28 | ||
| INRIM | 7.5 | 27 | ||
| RISE | 3.7 | 44 | ||
| NPL | 8.7 | 24 | ||
| NSAI NML | 3.4 | 30 | ||
| GUM | 20 | 36 | ||
| VSL | 7.7 | 27 | ||
| VTT MIKES | -8.6 | 28 |
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c and EURAMET.M.P-K1.c
Nominal pressure from 0.6 MPa to 7 MPa MPa
Measurand Effective area of Piston-cylinder units
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-6.
| Metrology area, Sub-field | Mass and related quantities, Pressure |
| Description | Pressure measurements in gas (gauge mode) |
| Time of measurements | 2003 - 2004 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Effective area of a piston-cylinder unit |
| Parameters | Pressure: 0.4 MPa to 4.0 MPa |
| Transfer device | Piston-cylinder unit |
| Comparison type | Key Comparison |
| Consultative Committee | CCM (Consultative Committee for Mass and Related Quantities) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| Comments | This is a key comparison intended to be linked to the key comparison APMP.M.P-K1.c via SPRING Singapore results. APMP.M.P-K1.c.1 results published on 19 June 2008
APMP.M.P-K1.c.1, APMP.M.P-K1.c, EUROMET.M.P-K2 and EUROMET.M.P-K3.b results are linked to those of CCM.P-K1.c APMP.M.P-K1.c.1 and EUROMET.M.P-K3.b results are given here for nominal pressures 1 MPa and 4 MPa only |
| Pilot institute |
CMS/ITRI
Industrial Technology Research Institute/Center for Measurement Standards Chinese Taipei |
| Contact person | Chen-Chuan Hung +886 3 574 3788 |
| Additional |
| NIMT |
National Institute of Metrology (Thailand), Thailand, APMP |
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-K1.c
MEASURAND : Effective area A' (p', 20 °C) of Piston-cylinder unit C-415
NOMINAL VALUE : 84 mm2
| The key comparison reference value, xR, is obtained as the linear fit A'p' vs. pressure p' of the results from the five participants. The standard uncertainty of the reference value, uR, is taken as the standard deviation of the linear fit. xR/ mm2 = A'p'(p', 20 °C) / mm2 = 84.00489 + 2.962 . 10-7p' /kPa uR / xR = 2.5 .10-6 |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) / xR, the relative deviation from the reference value, and Ui = 2(ui2 + uR2)1/2 / xR, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) / xR, the relative difference between their results, and Uij = 2(ui2 + uj2 + utr.std.2)1/2 / xR its expanded uncertainty (k = 2). utr.std. is the transfer standard stability (2.10-6 for C-415 unit). The degrees of equivalence by pairs are computed for the following pressures: 79.4 kPa, 429.5 kPa and 896.4 kPa |
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, APMP.M.P-K1.c.2, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 1 MPa
Measurand Effective area of Piston-cylinder units
CCM.P-K1.c
Nominal value 8.4 mm2
The key comparison reference value, xR, is obtained as the linear fit A'p' vs. pressure p' of the results from the five participants. The standard uncertainty of the reference value, uR, is taken as the standard deviation of the linear fit.
xR/ mm2 = A'p'(p', 20 °C) / mm2 = 8.3885165 + 3.947 . 10-8p' /kPa
uR / xR = 7.2 . 10-6
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms:
Di = (xi - xR) / xR, the relative deviation from the reference value, and
Ui = 2(ui2 + uR2)1/2 / xR, its expanded uncertainty (k = 2).
EUROMET.M.P-K2
The linking of EURAMET.M.P-K2 to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
APMP.M.P-K1.c
The linking of APMP.M.P-K1.c to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
APMP.M.P-K1.c.1
The linking of APMP.M.P-K1.c.1 to CCM.P-K1.c is made via SPRING that participated in both comparisons, detailed in Section 4.4 of the APMP.M.P-K1.c.1 Final Report.
EUROMET.M.P-K3.b
The linking of EUROMET.M.P-K3.b to CCM.P-K1.c is made via PTB and INRiM that participated in both comparisons, detailed in Section 7 of the EUROMET.M.P-K3.b Final Report.
APMP.M.P-K1.c.2
The linking of APMP.M.P-K1.c.2 to CCM.P-K1.c is made via KRISS that participated in both comparisons, detailed in Section 6 of the APMP.M.P-K1.c.2 Final Report.
EURAMET.M.P-K1.c
The linking of EURAMET.M.P-K1.c to CCM.P-K1.c is made via PTB that participated in both comparisons, detailed in Section 7 of the EURAMET.M.P-K1.c Final Report.
CCM.P-K1.c, EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 4 MPa
Measurand Effective area of Piston-cylinder units
CCM.P-K1.c
Nominal value 8.4 mm2
The key comparison reference value, xR, is obtained as the linear fit A'p' vs. pressure p' of the results from the five participants. The standard uncertainty of the reference value, uR, is taken as the standard deviation of the linear fit.
xR/ mm2 = A'p'(p', 20 °C) / mm2 = 8.3885165 + 3.947 . 10-8p' /kPa
uR / xR = 7.2 . 10-6
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms:
Di = (xi - xR) / xR, the relative deviation from the reference value, and
Ui = 2(ui2 + uR2)1/2 / xR, its expanded uncertainty (k = 2).
EUROMET.M.P-K2
The linking of EURAMET.M.P-K2 to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
APMP.M.P-K1.c
The linking of APMP.M.P-K1.c to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
APMP.M.P-K1.c.1
The linking of APMP.M.P-K1.c.1 to CCM.P-K1.c is made via SPRING that participated in both comparisons, detailed in Section 4.4 of the APMP.M.P-K1.c.1 Final Report.
EUROMET.M.P-K3.b
The linking of EUROMET.M.P-K3.b to CCM.P-K1.c is made via PTB and INRiM that participated in both comparisons, detailed in Section 7 of the EUROMET.M.P-K3.b Final Report.
EURAMET.M.P-K1.c
The linking of EURAMET.M.P-K1.c to CCM.P-K1.c is made via PTB that participated in both comparisons, detailed in Section 7 of the EURAMET.M.P-K1.c Final Report.
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c and EURAMET.M.P-K1.c
Nominal pressure from 0.6 MPa to 7 MPa MPa
Measurand Effective area of Piston-cylinder units
CCM.P-K1.c
Nominal value 8.4 mm2
The key comparison reference value, xR, is obtained as the linear fit A'p' vs. pressure p' of the results from the five participants. The standard uncertainty of the reference value, uR, is taken as the standard deviation of the linear fit.
xR/ mm2 = A'p'(p', 20 °C) / mm2 = 8.3885165 + 3.947 . 10-8p' /kPa
uR / xR = 7.2 . 10-6
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms:
Di = (xi - xR) / xR, the relative deviation from the reference value, and
Ui = 2(ui2 + uR2)1/2 / xR, its expanded uncertainty (k = 2).
EUROMET.M.P-K2
The linking of EURAMET.M.P-K2 to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
APMP.M.P-K1.c
The linking of APMP.M.P-K1.c to CCM.P-K1.c is made via BNM-LNE and PTB that participated in both comparisons.
EURAMET.M.P-K1.c
The linking of EURAMET.M.P-K1.c to CCM.P-K1.c is made via PTB that participated in both comparisons, detailed in Section 7 of the EURAMET.M.P-K1.c Final Report.
CCM.P-K1.c
MEASURAND : Effective area A' (p', 20 °C) of Piston-cylinder unit C-415 (Ruska 2465 pressure balance), from 79 kPa to 896 kPa determined from pressure measurement comparisons against participants primary standards
NOMINAL VALUE : 84 mm2
xi : result of measurement, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by laboratory i
ui : combined standard uncertainty of xi
Note that at the time of the comparison, NMIJ (National Metrology Institute of Japan) was designated as NRLM (National Research Laboratory of Metrology).
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c, APMP.M.P-K1.c.1, APMP.M.P-K1.c.2, EUROMET.M.P-K3.b and EURAMET.M.P-K1.c
Nominal pressure 1 MPa
Measurand Effective area of Piston-cylinder units
Nominal value 8.4 mm2
xi result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Labi
ui combined standard uncertainty of xi
CCM.P-K1.c
Nominal pressure 4 MPa
Measurand Effective area of Piston-cylinder units
Nominal value 8.4 mm2
xi result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Labi
ui combined standard uncertainty of xi
CCM.P-K1.c , EUROMET.M.P-K2, APMP.M.P-K1.c and EURAMET.M.P-K1.c
Nominal pressure from 0.6 MPa to 7 MPa MPa
Measurand Effective area of Piston-cylinder units
Nominal value 8.4 mm2
xi result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Labi
ui combined standard uncertainty of xi
