CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 20 kPa
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2),
expressed in mm2
Red diamonds: participants in CCM.P-K6
Green triangles: participants in APMP.M.P-K6 only
Blue circles: participants in APMP.M.P-K6.1 only
Orange squares: participants in EURAMET.M.P-K8
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 40 kPa
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2),
expressed in mm2
Red diamonds: participants in CCM.P-K6
Green triangles: participants in APMP.M.P-K6 only
Blue circles: participants in APMP.M.P-K6.1 only
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 60 kPa
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2),
expressed in mm2
Red diamonds: participants in CCM.P-K6
Green triangles: participants in APMP.M.P-K6 only
Blue circles: participants in APMP.M.P-K6.1 only
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 80 kPa
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2),
expressed in mm2
Red diamonds: participants in CCM.P-K6
Green triangles: participants in APMP.M.P-K6 only
Blue circles: participants in APMP.M.P-K6.1 only
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 100 kPa
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2),
expressed in mm2
Red diamonds: participants in CCM.P-K6
Green triangles: participants in APMP.M.P-K6 only
Blue circles: participants in APMP.M.P-K6.1 only
Orange squares: partcipants in EURAMET.M.P-K8
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 20 kPa
Degrees of equivalence relative to the CCM.P-K6 key comparison reference value, expressed in mm2
* participants in APMP.M.P-K6 only
**participants in APMP.M.P-K6.1 only
Orange : participants in EURAMET.M.P-K8
Matrix of equivalence inside APMP.M.P-K6.1:
| Lab i | Di | Ui |
| / mm2 | / mm2 | |
| VSL | 0.0010 | 0.011 |
| METAS | -0.0261 | 0.050 |
| PTB | 0.0000 | 0.0041 |
| NIST | -0.0011 | 0.0026 |
| NIM | 0.0018 | 0.0032 |
| NPL | -0.0005 | 0.0048 |
| NRC | 0.0002 | 0.0027 |
The matrices of equivalence computed inside key comparisons CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1 are available in Summary Results (.PDF file).
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 40 kPa
Degrees of equivalence relative to the CCM.P-K6 key comparison reference value, expressed in mm2
* participants in APMP.M.P-K6 only
**participants in APMP.M.P-K6.1 only
Matrix of equivalence inside APMP.M.P-K6.1:
| Lab i | Di | Ui |
| / mm2 | / mm2 | |
| CMS/ITRI | -0.0108 | 0.0141 |
| NIMT | 0.0025 | 0.0116 |
The matrices of equivalence computed inside key comparisons CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1 are available in Summary Results (.PDF file).
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 60 kPa
Degrees of equivalence relative to the CCM.P-K6 key comparison reference value, expressed in mm2
* participants in APMP.M.P-K6 only
**participants in APMP.M.P-K6.1 only
Matrix of equivalence inside APMP.M.P-K6.1:
| Lab i | Di | Ui |
| / mm2 | / mm2 | |
| CMS/ITRI | -0.0118 | 0.0140 |
| NIMT | 0.0004 | 0.0115 |
The matrices of equivalence computed inside key comparisons CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1 are available in Summary Results (.PDF file).
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 80 kPa
Degrees of equivalence relative to the CCM.P-K6 key comparison reference value, expressed in mm2
* participants in APMP.M.P-K6 only
**participants in APMP.M.P-K6.1 only
Matrix of equivalence inside APMP.M.P-K6.1:
| Lab i | Di | Ui |
| / mm2 | / mm2 | |
| CMS/ITRI | -0.0101 | 0.0140 |
| NIMT | 0.0019 | 0.0115 |
The matrices of equivalence computed inside key comparisons CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1 are available in Summary Results (.PDF file).
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 100 kPa
Degrees of equivalence relative to the CCM.P-K6 key comparison reference value, expressed in mm2
* participants in APMP.M.P-K6 only
**participants in APMP.M.P-K6.1 only
Orange: participants in EURAMET.M.P-K8
Matrix of equivalence inside APMP.M.P-K6.1:
| Lab i | Di | Ui |
| / mm2 | / mm2 | |
| VSL | 0.0005 | 0.011 |
| METAS | -0.0142 | 0.016 |
| PTB | 0.0008 | 0.0032 |
| NIST | -0.0016 | 0.0027 |
| NIM | 0.0012 | 0.0033 |
| NPL | 0.0000 | 0.0022 |
| NRC | -0.0014 | 0.0026 |
The matrices of equivalence computed inside key comparisons CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1 are available in Summary Results (.PDF file).
| 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: 20 kPa to 105 kPa |
| 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 | Results published on 03 March 2009 APMP.M.P-K6.1 results are linked to those of CCM.P-K6 though APMP.M.P-K6 Medium pressure, gauge mode |
| 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 |
| NMC, A*STAR |
National Metrology Centre, Agency for Science, Technology and Research, 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-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 20 kPa
|
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 MAD / (n - 1)1/2, where MAD is the median of absolute deviations from the median, and n is the number of participants contributing to the reference value. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm2: Di = (xi - xR) and Ui = 2(ui2 + uR2)1/2, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories i and j is given by a pair of terms expressed in mm2: Dij = Di - Dj = (xi - xj) and Uij = 2(ui2 + uj2)1/2, its expanded uncertainty (k = 2). |
PTB is the common participant to both key comparisons CCM.P-K6 and APMP.M.P-K6: its results are used to compute the linkage as explained in Sections 5.1 and 5.2 of the APMP.M.P-K6 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6 only, as explained in Section 5.3 of the APMP.M.P-K6 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6 are obtained as explained in Section 5.4 of the APMP.M.P-K6 Final Report. They are expressed in relative terms. |
The key comparison APMP.M.P-K6.1 is linked to the CCM.P-K6 key comparison through the APMP.M.P-K6 key comparison.
A*STAR is the common participant to both key comparisons APMP.M.P-K6 and APMP.M.P-K6.1: its results are used to compute the linkage as explained in paragraph 4.1 the APMP.M.P-K6.1 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6.1 only, as explained in paragraph 4.2 of the APMP.M.P-K6.1 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6.1 are obtained as explained in paragraph 4.3 of the APMP.M.P-K6.1 Final Report. They are expressed in relative terms. |
PTB and VSL provide the link between key comparisons CCM.P-K6 and EURAMET.M.P-K8 for the following nominal pressures: 25 kPa, 50 kPa, 75 kPa and 100 kPa.
The linkage process is described in Section 11 of the EURAMET.M.P-K8 Final Report.
The measurements of EURAMET.M.P-K8 at the nominal pressure 25 kPa are linked with the averaged value of the 20 kPa and 30 kPa measurements of the CCM comparison, and those at the nominal pressure 75 kPa are linked with the averaged value of the 70 kPa and 80 kPa measurements of the CCM comparison.
Therefore, the degrees of equivalence of the laboratories having participated in EURAMET.M.P-K8 for 25 kPa and 75 kPa are shown on a different graph from the ones for the participants in CCM.P-K6.
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 40 kPa
|
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 MAD / (n - 1)1/2, where MAD is the median of absolute deviations from the median, and n is the number of participants contributing to the reference value. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm2: Di = (xi - xR) and Ui = 2(ui2 + uR2)1/2, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories i and j is given by a pair of terms expressed in mm2: Dij = Di - Dj = (xi - xj) and Uij = 2(ui2 + uj2)1/2, its expanded uncertainty (k = 2). |
PTB is the common participant to both key comparisons CCM.P-K6 and APMP.M.P-K6: its results are used to compute the linkage as explained in Sections 5.1 and 5.2 of the APMP.M.P-K6 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6 only, as explained in Section 5.3 of the APMP.M.P-K6 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6 are obtained as explained in Section 5.4 of the APMP.M.P-K6 Final Report. They are expressed in relative terms. |
The key comparison APMP.M.P-K6.1 is linked to the CCM.P-K6 key comparison through the APMP.M.P-K6 key comparison.
A*STAR is the common participant to both key comparisons APMP.M.P-K6 and APMP.M.P-K6.1: its results are used to compute the linkage as explained in paragraph 4.1 the APMP.M.P-K6.1 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6.1 only, as explained in paragraph 4.2 of the APMP.M.P-K6.1 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6.1 are obtained as explained in paragraph 4.3 of the APMP.M.P-K6.1 Final Report. They are expressed in relative terms. |
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 60 kPa
|
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 MAD / (n - 1)1/2, where MAD is the median of absolute deviations from the median, and n is the number of participants contributing to the reference value. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm2: Di = (xi - xR) and Ui = 2(ui2 + uR2)1/2, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories i and j is given by a pair of terms expressed in mm2: Dij = Di - Dj = (xi - xj) and Uij = 2(ui2 + uj2)1/2, its expanded uncertainty (k = 2). |
PTB is the common participant to both key comparisons CCM.P-K6 and APMP.M.P-K6: its results are used to compute the linkage as explained in Sections 5.1 and 5.2 of the APMP.M.P-K6 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6 only, as explained in Section 5.3 of the APMP.M.P-K6 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6 are obtained as explained in Section 5.4 of the APMP.M.P-K6 Final Report. They are expressed in relative terms. |
The key comparison APMP.M.P-K6.1 is linked to the CCM.P-K6 key comparison through the APMP.M.P-K6 key comparison.
A*STAR is the common participant to both key comparisons APMP.M.P-K6 and APMP.M.P-K6.1: its results are used to compute the linkage as explained in paragraph 4.1 the APMP.M.P-K6.1 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6.1 only, as explained in paragraph 4.2 of the APMP.M.P-K6.1 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6.1 are obtained as explained in paragraph 4.3 of the APMP.M.P-K6.1 Final Report. They are expressed in relative terms. |
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 80 kPa
|
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 MAD / (n - 1)1/2, where MAD is the median of absolute deviations from the median, and n is the number of participants contributing to the reference value. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm2: Di = (xi - xR) and Ui = 2(ui2 + uR2)1/2, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories i and j is given by a pair of terms expressed in mm2: Dij = Di - Dj = (xi - xj) and Uij = 2(ui2 + uj2)1/2, its expanded uncertainty (k = 2). |
PTB is the common participant to both key comparisons CCM.P-K6 and APMP.M.P-K6: its results are used to compute the linkage as explained in Sections 5.1 and 5.2 of the APMP.M.P-K6 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6 only, as explained in Section 5.3 of the APMP.M.P-K6 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6 are obtained as explained in Section 5.4 of the APMP.M.P-K6 Final Report. They are expressed in relative terms. |
The key comparison APMP.M.P-K6.1 is linked to the CCM.P-K6 key comparison through the APMP.M.P-K6 key comparison.
A*STAR is the common participant to both key comparisons APMP.M.P-K6 and APMP.M.P-K6.1: its results are used to compute the linkage as explained in paragraph 4.1 the APMP.M.P-K6.1 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6.1 only, as explained in paragraph 4.2 of the APMP.M.P-K6.1 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6.1 are obtained as explained in paragraph 4.3 of the APMP.M.P-K6.1 Final Report. They are expressed in relative terms. |
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p ~ 100 kPa
|
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 MAD / (n - 1)1/2, where MAD is the median of absolute deviations from the median, and n is the number of participants contributing to the reference value. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms expressed in mm2: Di = (xi - xR) and Ui = 2(ui2 + uR2)1/2, its expanded uncertainty (k = 2). |
| The degree of equivalence between two laboratories i and j is given by a pair of terms expressed in mm2: Dij = Di - Dj = (xi - xj) and Uij = 2(ui2 + uj2)1/2, its expanded uncertainty (k = 2). |
PTB is the common participant to both key comparisons CCM.P-K6 and APMP.M.P-K6: its results are used to compute the linkage as explained in Sections 5.1 and 5.2 of the APMP.M.P-K6 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6 only, as explained in Section 5.3 of the APMP.M.P-K6 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6 are obtained as explained in Section 5.4 of the APMP.M.P-K6 Final Report. They are expressed in relative terms. |
The key comparison APMP.M.P-K6.1 is linked to the CCM.P-K6 key comparison through the APMP.M.P-K6 key comparison.
A*STAR is the common participant to both key comparisons APMP.M.P-K6 and APMP.M.P-K6.1: its results are used to compute the linkage as explained in paragraph 4.1 the APMP.M.P-K6.1 Final Report.
| Degrees of equivalence relative to the CCM.P-K6 key comparison reference value are obtained for laboratories having participated in APMP.M.P-K6.1 only, as explained in paragraph 4.2 of the APMP.M.P-K6.1 Final Report. They are expressed in mm2. |
| Pair-wise degrees of equivalence among pairs of participants in APMP.M.P-K6.1 are obtained as explained in paragraph 4.3 of the APMP.M.P-K6.1 Final Report. They are expressed in relative terms. |
PTB and VSL provide the link between key comparisons CCM.P-K6 and EURAMET.M.P-K8 for the following nominal pressures: 25 kPa, 50 kPa, 75 kPa and 100 kPa.
The linkage process is described in Section 11 of the EURAMET.M.P-K8 Final Report.
The measurements of EURAMET.M.P-K8 at the nominal pressure 25 kPa are linked with the averaged value of the 20 kPa and 30 kPa measurements of the CCM comparison, and those at the nominal pressure 75 kPa are linked with the averaged value of the 70 kPa and 80 kPa measurements of the CCM comparison.
Therefore, the degrees of equivalence of the laboratories having participated in EURAMET.M.P-K8 for 25 kPa and 75 kPa are shown on a different graph from the ones for the participants in CCM.P-K6.
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 20 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| VSL |
335.745 4 |
16 |
Aug-Sep 1998 |
| METAS |
335.718 3 |
74 |
Nov-Dec 1998 |
| PTB | 335.744 4 | 5.6 | Feb-Mar 1999 |
| NIST | 335.743 3 | 3.1 | Sep-Oct 1999 |
| NIM |
335.746 2 |
4.3 |
Nov-Dec 1999 |
| NPL | 335.743 9 | 6.8 | Aug-Sep 2000 |
| NRC | 335.744 6 | 3.4 | Jul-Sep 2001 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 21.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NPLI |
335.737 3 |
15.80 |
Oct 1998 |
| KRISS |
335.742 1 |
11.10 |
Apr 1999 |
| NMIA | 335.749 7 | 12.60 | Feb 2001 |
| NMIJ | 335.738 8 | 8.80 | Sep 1999 |
| PTB |
335.737 6 |
6.40 |
Mar 2001 |
| MSL | 335.749 3 | 11.80 | May 1999 |
| A*STAR | 335.737 5 | 19.20 | Nov 1998 |
| NML-SIRIM |
335.744 8 |
11.40 |
Jan 1999 |
| SCL |
335.747 7 |
18.00 |
Jun 1999 |
| NMISA |
335.740 7 |
14.60 |
Oct 1999 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.75 mm2
NOMINAL PRESSURE : p = 21.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ULabi : relative expanded uncertainty (k =2) of xi
| Lab i | xi / mm2 |
ULabi / 10-6 |
Date of measurement |
| CMS/ITRI |
335.623 5 |
30.2 |
Apr 03 - Apr 04 |
| A*STAR |
335.633 9 |
22.0 |
Apr 03 - Apr 04 |
| NIMT | 335.635 1 | 18.6 | Apr 03 - Apr 04 |
MEASURAND : Effective area of a piston-cylinder assembly determined in gauge pressure mode
NOMINAL VALUE : 980 mm2
NOMINAL PRESSURE : p = 25 kPa
The laboratory individual measurements of the participants in the key comparison EURAMET.M.P-K8 are given in Table 7 on page 26 of the EURAMET.M.P-K8 Final Report.
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 40 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| VSL |
335.745 8 |
16 |
Aug-Sep 1998 |
| METAS |
335.720 7 |
49 |
Nov-Dec 1998 |
| PTB | 335.744 6 | 4.1 | Feb-Mar 1999 |
| NIST | 335.743 0 | 3.0 | Sep-Oct 1999 |
| NIM |
335.745 3 |
4.2 |
Nov-Dec 1999 |
| NPL | 335.744 1 | 3.7 | Aug-Sep 2000 |
| NRC | 335.743 9 | 3.0 | Jul-Sep 2001 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 41.3 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NPLI |
335.737 2 |
15.80 |
Oct 1998 |
| KRISS |
335.742 1 |
11.10 |
Apr 1999 |
| NMIA | 335.744 1 | 12.60 | Feb 2001 |
| NMIJ | 335.738 9 | 8.80 | Sep 1999 |
| PTB |
335.737 9 |
6.00 |
Mar 2001 |
| MSL | 335.741 6 | 11.80 | May 1999 |
| A*STAR | 335.735 3 | 19.20 | Nov 1998 |
| NML-SIRIM |
335.742 1 |
11.50 |
Jan 1999 |
| SCL |
335.743 9 |
17.90 |
Jun 1999 |
| NMISA |
335.733 8 |
14.60 |
Oct 1999 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.75 mm2
NOMINAL PRESSURE : p = 41.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ULabi : relative expanded uncertainty (k =2) of xi
| Lab i | xi / mm2 |
ULabi / 10-6 |
Date of measurement |
| CMS/ITRI |
335.623 5 |
30.0 |
Apr 03 - Apr 04 |
| A*STAR |
335.632 2 |
21.8 |
Apr 03 - Apr 04 |
| NIMT | 335.636 8 | 18.0 | Apr 03 - Apr 04 |
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 60 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| VSL |
335.745 4 |
16 |
Aug-Sep 1998 |
| METAS |
335.722 4 |
34 |
Nov-Dec 1998 |
| PTB | 335.744 9 | 4.5 | Feb-Mar 1999 |
| NIST | 335.743 0 | 3.1 | Sep-Oct 1999 |
| NIM |
335.744 6 |
4.0 |
Nov-Dec 1999 |
| NPL | 335.744 3 | 2.6 | Aug-Sep 2000 |
| NRC | 335.743 8 | 2.8 | Jul-Sep 2001 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 61.3 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NPLI |
335.737 8 |
15.80 |
Oct 1998 |
| KRISS |
335.741 1 |
11.10 |
Apr 1999 |
| NMIA | 335.742 4 | 12.60 | Feb 2001 |
| NMIJ | 335.738 3 | 8.80 | Sep 1999 |
| PTB |
335.738 7 |
6.20 |
Mar 2001 |
| MSL | 335.740 6 | 11.70 | May 1999 |
| A*STAR | 335.735 0 | 19.20 | Nov 1998 |
| NML-SIRIM |
335.740 5 |
11.40 |
Jan 1999 |
| SCL |
335.743 4 |
17.70 |
Jun 1999 |
| NMISA |
335.732 2 |
14.60 |
Oct 1999 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.75 mm2
NOMINAL PRESSURE : p = 61.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ULabi : relative expanded uncertainty (k =2) of xi
| Lab i | xi / mm2 |
ULabi / 10-6 |
Date of measurement |
| CMS/ITRI |
335.624 2 |
30.0 |
Apr 03 - Apr 04 |
| A*STAR |
335.632 9 |
21.4 |
Apr 03 - Apr 04 |
| NIMT | 335.636 4 | 17.8 | Apr 03 - Apr 04 |
CCM.P-K6, APMP.M.P-K6 and APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 80 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| VSL |
335.745 2 |
16 |
Aug-Sep 1998 |
| METAS |
335.733 2 |
34 |
Nov-Dec 1998 |
| PTB | 335.745 3 | 5.3 | Feb-Mar 1999 |
| NIST | 335.742 6 | 3.1 | Sep-Oct 1999 |
| NIM |
335.745 3 |
4.2 |
Nov-Dec 1999 |
| NPL | 335.744 5 | 2.1 | Aug-Sep 2000 |
| NRC | 335.743 3 | 2.8 | Jul-Sep 2001 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 81.3 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NPLI |
335.737 7 |
15.80 |
Oct 1998 |
| KRISS |
335.739 9 |
11.10 |
Apr 1999 |
| NMIA | 335.741 1 | 12.60 | Feb 2001 |
| NMIJ | 335.737 8 | 8.80 | Sep 1999 |
| PTB |
335.739 3 |
5.90 |
Mar 2001 |
| MSL | 335.740 3 | 11.70 | May 1999 |
| A*STAR | 335.734 8 | 19.20 | Nov 1998 |
| NML-SIRIM |
335.740 6 |
11.40 |
Jan 1999 |
| SCL |
335.742 0 |
17.60 |
Jun 1999 |
| NMISA |
335.731 4 |
14.60 |
Oct 1999 |
Key comparison APMP.M.P-K6.1
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.75 mm2
NOMINAL PRESSURE : p = 81.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ULabi : relative expanded uncertainty (k =2) of xi
| Lab i | xi / mm2 |
ULabi / 10-6 |
Date of measurement |
| CMS/ITRI |
335.624 8 |
30.0 |
Apr 03 - Apr 04 |
| A*STAR |
335.631 2 |
21.2 |
Apr 03 - Apr 04 |
| NIMT | 335.636 8 | 17.8 | Apr 03 - Apr 04 |
CCM.P-K6, APMP.M.P-K6, APMP.M.P-K6.1 and EURAMET.M.P-K8
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 100 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| VSL |
335.745 0 |
16 |
Aug-Sep 1998 |
| METAS |
335.730 4 |
24 |
Nov-Dec 1998 |
| PTB | 335.745 3 | 3.8 | Feb-Mar 1999 |
| NIST | 335.742 9 | 3.0 | Sep-Oct 1999 |
| NIM |
335.745 7 |
4.1 |
Nov-Dec 1999 |
| NPL | 335.744 5 | 1.8 | Aug-Sep 2000 |
| NRC | 335.743 1 | 2.7 | Jul-Sep 2001 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.7 mm2
NOMINAL PRESSURE : p = 101.2 kPa
xi : result obtained from the mean of measurements by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / mm2 |
ui / xi / 10-6 |
Date of measurement |
| NPLI |
335.737 7 |
15.80 |
Oct 1998 |
| KRISS |
335.739 7 |
11.10 |
Apr 1999 |
| NMIA | 335.741 0 | 12.60 | Feb 2001 |
| NMIJ | 335.737 8 | 8.80 | Sep 1999 |
| PTB |
335.739 7 |
5.90 |
Mar 2001 |
| MSL | 335.741 0 | 11.70 | May 1999 |
| A*STAR | 335.734 0 | 19.10 | Nov 1998 |
| NML-SIRIM |
335.742 0 |
11.40 |
Jan 1999 |
| SCL |
335.742 0 |
17.60 |
Jun 1999 |
| NMISA |
335.732 0 |
14.60 |
Oct 1999 |
MEASURAND : Effective area of a piston-cylinder assembly
NOMINAL VALUE : 335.75 mm2
NOMINAL PRESSURE : p = 101.4 kPa
xi : result obtained from the mean of measurements by laboratory i
ULabi : relative expanded uncertainty (k =2) of xi
| Lab i | xi / mm2 |
ULabi / 10-6 |
Date of measurement |
| CMS/ITRI |
335.624 4 |
30.0 |
Apr 03 - Apr 04 |
| A*STAR |
335.632 2 |
21.2 |
Apr 03 - Apr 04 |
| NIMT | 335.636 7 | 17.8 | Apr 03 - Apr 04 |
MEASURAND : Effective area of a piston-cylinder assembly determined in gauge pressure mode
NOMINAL VALUE : 980 mm2
NOMINAL PRESSURE : p = 100 kPa
The laboratory individual measurements of the participants in the key comparison EURAMET.M.P-K8 are given in Table 7 on page 26 of the EURAMET.M.P-K8 Final Report.
