CCM.P-K1.c
MEASURAND : Effective area A' (p', 20 °C) of Piston-cylinder unit C-415
NOMINAL VALUE : 84 mm^{2}
Degrees of equivalence, D_{i} = (x_{i} - x_{R}) / x_{R} 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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} 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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} 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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} 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
NOMINAL VALUE : 84 mm^{2}
Degrees of equivalence D_{i} and expanded uncertainty U_{i} (k = 2) expressed in 10^{-6}
Full matrices of equivalence for pressures 79.4 kPa, 429.5 kPa and 896.4 kPa
Lab i | D_{i} | U_{i} |
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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} at a 95 % level of confidence, both expressed in 10^{-6}.
LAB_{i} | D_{i} | U_{neg,i} | U_{pos,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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} at a 95 % level of confidence, both expressed in 10^{-6}.
LAB_{i} | D_{i} | U_{neg,i} | U_{pos,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 D_{i} = (x_{I} - x_{R}) and its expanded uncertainty U_{i} 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 |
Pilot laboratory | |
---|---|
CMS/ITRI |
Industrial Technology Research Institute/Center for Measurement Standards, Chinese Taipei, APMP |
NIMT |
National Institute of Metrology (Thailand), Thailand, APMP |
SPRING Singapore |
Singapore Standards, Productivity and Innovation Board (became NMC, A*STAR in 2008), Singapore, 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 mm^{2}
The key comparison reference value, x_{R}, 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, u_{R}, is taken as the standard deviation of the linear fit. x_{R}/ mm^{2} = A'p'(p', 20 °C) / mm^{2} = 84.00489 + 2.962 . 10^{-7}p' /kPa u_{R} / x_{R} = 2.5 .10^{-6} |
The degree of equivalence of each laboratory with respect to the 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 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} + u_{tr.std.}^{2})^{1/2} / x_{R} its expanded uncertainty (k = 2). u_{tr.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 mm^{2}
The key comparison reference value, x_{R}, 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, u_{R}, is taken as the standard deviation of the linear fit.
x_{R}/ mm^{2} = A'p'(p', 20 °C) / mm^{2} = 8.3885165 + 3.947 . 10^{-8}p' /kPa
u_{R} / x_{R} = 7.2 . 10^{-6}
The degree of equivalence of each laboratory with respect to the 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).
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 mm^{2}
The key comparison reference value, x_{R}, 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, u_{R}, is taken as the standard deviation of the linear fit.
x_{R}/ mm^{2} = A'p'(p', 20 °C) / mm^{2} = 8.3885165 + 3.947 . 10^{-8}p' /kPa
u_{R} / x_{R} = 7.2 . 10^{-6}
The degree of equivalence of each laboratory with respect to the 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).
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 mm^{2}
The key comparison reference value, x_{R}, 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, u_{R}, is taken as the standard deviation of the linear fit.
x_{R}/ mm^{2} = A'p'(p', 20 °C) / mm^{2} = 8.3885165 + 3.947 . 10^{-8}p' /kPa
u_{R} / x_{R} = 7.2 . 10^{-6}
The degree of equivalence of each laboratory with respect to the 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).
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 mm^{2}
x_{i} : result of measurement, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by laboratory i
u_{i} : combined standard uncertainty of x_{i}
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 mm^{2}
x_{i} result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Lab_{i}
u_{i} combined standard uncertainty of x_{i}
CCM.P-K1.c
Nominal pressure 4 MPa
Measurand Effective area of Piston-cylinder units
Nominal value 8.4 mm^{2}
x_{i} result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Lab_{i}
u_{i} combined standard uncertainty of x_{i}
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 mm^{2}
x_{i} result of measurements, as A' (p', 20 °C) based on the arithmetic average of 10 experimental points, carried out by Lab_{i}
u_{i} combined standard uncertainty of x_{i}