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Results
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CCM.FF-K4, EURAMET.M.FF-K4.b, SIM.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 20 L

Degrees of equivalence Di and expanded uncertainty Ui at approximately 95% level of confidence, expressed in 10-6

Click on the Graph below to get a closer view and the names of the participating laboratories

Red diamonds : participants in CCM.FF-K4
Blue circles : participants in EURAMET.M.FF-K4.b
Green triangles : participants in SIM.M.FF-K4
Orange squares : participants in APMP.M.FF-K4

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CCM.FF-K4, EUROMET.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
CCM.FF-K4 AND APMP.M.FF-K4 TRANSFER STANDARD: TS 03.04.03

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

Click on the Graph below to get a closer view and the names of the participating laboratories

Red diamonds : participants in CCM.FF-K4
Blue circles : participants in EUROMET.FF-K4
Open symbols : common participants in CCM.FF-K4 and EUROMET.M.FF-K4 comparisons
Orange squares : participants in APMP.M.FF-K4

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CCM.FF-K4 and SIM.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.04

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

Red diamonds : participants in CCM.FF-K4
Green triangles : participants in SIM.M.FF-K4
DBSJ = 10601 x 10-6
UBSJ = 721 x 10-6

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.13

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.14

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.15

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

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CCM.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.17

Degrees of equivalence Di and expanded uncertainty Ui at approximately a 95% level of confidence

Orange squares : participants in APMP.M.FF-K4
DNIMT = -147 x 10-6 and UNIMT = 29 x 10-6
DMUSSD = -97 x 10-6 and UMUSSD = 66 x 10-6

Comparison
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Results
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CCM.FF-K4, EURAMET.M.FF-K4.b, SIM.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 20 L

Full set of degrees of equivalence relative to the CCM.FF-K4 key comparison reference value

In Red: participants in CCM.FF-K4
In Blue: participants in EURAMET.M.FF-K4.b
In Green: participants in SIM.M.FF-K4
In Orange: participants in APMP.M.FF-K4

Matrix of equivalence for key comparisons CCM.FF-K4 and EURAMET.M.FF-K4.b
Note: Pair-wise degrees of equivalence involving CCM.FF-K4 and SIM.M.FF-K4 are given on page 16 of the SIM.M.FF-K4 Final Report.
Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 17 of the APMP.M.FF-K4 Final Report.

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-315
NIST-2634
NRC1330
SP034
PTB-119
INRIM2416
NMIA-521
INMETRO-314
SP*931
JV*3044
METAS*-6664
IPQ*1035
VSL*-1040
SMU*-2727
MKEH*326
INRIM*-727
PTB*-1127
DMDM*-1139
UME*-227
EIM*-1625
BEV*-830
CMI*-6689

* participants in EURAMET.M.FF-K4.b

Results are presented under A4 printable format in Summary Results (.PDF file).

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CCM.FF-K4, EUROMET.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
CCM.FF-K4 and APMP.M.FF-K4 TRANSFER STANDARD: TS 03.04.03

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-716
NRC3620
SP826
INRIM-1218
NMIA1320
INMETRO-1316
IPQ*39
CMI*-3751
LNE*917
FORCE*398
PTB*-1119
NMi-VSL* 1256
UME*2283
CEM*1414
INRIM*89
OMH*-1015
EIM*103152
BEV*1335
SP*675
CENAM**-820
NMIA**720
SCL**-4372
NIM**-623
NMISA**-82106
NIMT**-14229
VMI-STAMEQ**4438
MUSSD**-67869

* participants in EUROMET.M.FF-K4
** participants in APMP.M.FF-K4

Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 18 of the APMP.M.FF-K4 Final Report.

Results are presented under A4 printable format in Summary Results (.PDF file).

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CCM.FF-K4 and SIM.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.04

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-515
NRC3720
SP1327
INRIM-2121
NMIA1019
INMETRO-1417
CENAM*-322
BSJ*10601721
LACOMET*1364
CENAMEP AIP*-1532
INDECOPI*-3672
IBMETRO*2838
LATU*2630
INTI*-7563
INMETRO*-1622

* participants in SIM.M.FF-K4

Pair-wise degrees of equivalence involving CCM.FF-K4 and SIM.M.FF-K4 are given on page 18 of the SIM.M.FF-K4 Final Report.

Results are presented under A4 printable format in Summary Results (.PDF file).

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.13

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-1117
NRC2521
SP-124
INRIM-1618
NMIA518
INMETRO413

Results are presented under A4 printable format in Summary Results (.PDF file).

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.14

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-1520
NRC3921
SP1827
INRIM-1720
NMIA716
INMETRO-714

Results are presented under A4 printable format in Summary Results (.PDF file).

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.15

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-716
NRC4223
SP1527
INRIM-917
NMIA416
INMETRO-1115

Results are presented under A4 printable format in Summary Results (.PDF file).

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CCM.FF-K4 and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD : TS 03.01.17

   
Lab iDiUi
 / 10-6/ 10-6
CENAM-317
NRC4322
SP1930
INRIM-1218
NMIA315
INMETRO-2019
CENAM*-720
NMIA*720
SCL*-4172
NIM*1223
NMISA*648
NIMT*-14729
VMI-STAMEQ*3738
MUSSD*-9766

* participants in APMP.M.FF-K4

Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 19 of the APMP.M.FF-K4 Final Report.

Results are presented under A4 printable format in Summary Results (.PDF file).

Comparison
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CC comparison
Linked comparison
APMP.M.FF-K4.2022
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Metrology area, Sub-field Mass and related quantities, Fluid Flow
Description Liquid volume
Time of measurements 2022 - 2023
Status Planned
Measurand Water volume: 100 ml and 20 L
100mL, 20 L
Transfer device A 20L test measure and two 100mL pycnometers
Comparison type Key Comparison
Consultative Committee CCM (Consultative Committee for Mass and Related Quantities)
Conducted by APMP (Asia Pacific Metrology Programme)
Pilot institute NIM
National Institute of Metrology
China
Contact person Ligong GUO

+86 10 6452 4650/4627
Additional
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
NIM

National Institute of Metrology, China, APMP

IPQ

Instituto Portugues da Qualidade, Portugal, EURAMET

MUSSD

Department of Measurement Units, Standards and Services, Sri Lanka, APMP

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NIS

National Institute for Standards, Egypt, AFRIMETS

NMIA

National Measurement Institute, Australia, Australia, APMP

NMIM

National Metrology Institute of Malaysia, Malaysia, APMP

NMLPHIL

National Metrology Laboratory of the Philippines, Philippines, APMP

NPLI

CSIR National Physical Laboratory of India, India, APMP

SASO-NMCC

National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET

SCL

Standards and Calibration Laboratory, Hong Kong, China, APMP

SNSU-BSN

National Measurement Standard - National Standardization Agency of Indonesia, Indonesia, APMP

UzNIM

Uzbek National Institute of Metrology, Uzbekistan, COOMET

VMI-STAMEQ

Viet Nam Metrology Institute, Directorate for Standards and Quality, Viet Nam, APMP

VNIIM

D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET

Comparison
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Results
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CCM.FF-K4, EURAMET.M.FF-K4.b, SIM.M.FF-K4, and APMP.M.FF-K4

  • Key comparison CCM.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 20 L
THREE TRANSFER STANDARDS

For each of the transfer standards, the key comparison reference value, xR, is computed either as the median or as the weighted mean of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence.
SP is excluded from the analysis for the transfer standard TS 710-04.
The details are explained in Appendix C of the CCM.FF-K4 Final Report.

For each transfer standard, a first degree of equivalence for laboratory i with respect to the key comparison reference value is calculated as a pair of terms, both expressed in relative value:
Di TS= (xi - xR)/xR and its expanded uncertainty Ui TS at approximately a 95% level of confidence.
The degree of equivalence of laboratory i participating in this key comparison for the
20 L measurements is then given by a pair of terms, both expressed in relative value:
Di and its expanded uncertainty Ui at a ~95 % level of confidence, determined as the arithmetic average of the degrees of equivalence obtained for each individual transfer standard.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
  • Linking EURAMET.M.FF-K4.b to CCM.FF-K4

The linking process is described in section 7 of the EURAMET.M.FF-K4.b Final Report. The Matrix of equivalence obtained at 20 L in CCM.FF-K4 is thus extended to EURAMET.M.FF-K4.b participants.
Note: The Dij values given in the Annex 2 of the EURAMET.M.FF-K4.b Final Report correspond to -Dij values shown in the Matrix of equivalence.

  • Linking SIM.M.FF-K4 to CCM.FF-K4

The regional comparison reference value is first determined as the median of the SIM results for transfer standard TS 710-05, as described in section 8 of the SIM.M.FF-K4 Final Report.
Then the linking process uses common participation of CENAM, NIST and INMETRO in both key comparisons, as described in section 9 of the same Report.
Pair-wise degrees of equivalence involving CCM.FF-K4 and SIM.M.FF-K4 are given on page 16 of the SIM.M.FF-K4 Final Report.

  • Linking APMP.M.FF-K4 to CCM.FF-K4

The linking process uses common participation of NMIA and CENAM in both key comparisons, as described in section 7 of the APMP.M.FF-K4 Final Report.
Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 17 of the APMP.M.FF-K4 Final Report.

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CCM.FF-K4, EUROMET.M.FF-K4, and APMP.M.FF-K4

  • Key comparison CCM.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.03

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the CCM.FF-K4 Final Report.
xR = 99.8942 mL and UR = 0.0012 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
  • Key comparison EUROMET.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL

The EUROMET reference value, xR-EUR, and its expanded uncertainty (k = 2), UR-EUR, are obtained from the weighted average of the EUROMET participants' results that are published here.
xR-EUR = 100.0914 mL and UR-EUR = 0.0006 mL.

The degree of equivalence of laboratory i participant in EUROMET.M.FF-K4 with respect to the EUROMET reference value is given by a pair of terms, both expressed in mL:
Di-EUR = (xi-EUR - xR-EUR) and its expanded uncertainty (k = 2), Ui-EUR, computed as Ui-EUR = 2[ui-EUR2 - (UR-EUR/2)2]1/2.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in mL: Dij = (Di-EUR - Dj-EUR) and its expanded uncertainty (k = 2), Uij, expressed as Uij = 2(ui-EUR2 + uj-EUR2)1/2.
  • Linking EUROMET.M.FF-K4 to CCM.FF-K4

The EUROMET.M.FF-K4 results are linked to those obtained at 100 mL in CCM.FF-K4 with the Transfer standard TS 03.04.03.
The technical protocols and transfer standards of both comparisons are very similar, and INRIM and SP participated in both exercises with comparable performance.
The degrees of equivalence relative to the EUROMET reference value are thus transferred to the key comparison reference value determined in CCM.FF-K4 with slight changes. The resulting values of Di, Ui, Dij, and Uij are listed in Annexes 3, 4, and 5 of the EUROMET.M.FF-K4 Final Report.

The matrix of equivalence obtained at 100 mL in CCM.FF-K4 with the Transfer standard TS 03.04.03 is thus extended to EUROMET.M.FF-K4 participants (after conversion to relative values).

  • Linking APMP.M.FF-K4 to CCM.FF-K4

The linking process uses common participation of NMIA and CENAM in both key comparisons, as described in section 7 of the APMP.M.FF-K4 Final Report.
Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 18 of the APMP.M.FF-K4 Final Report.

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CCM.FF-K4 and SIM.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.04

  • Key comparison CCM.FF-K4

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the CCM.FF-K4 Final Report.
xR = 100.1599 mL and UR = 0.0013 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
  • Linking SIM.M.FF-K4 to CCM.FF-K4

The regional comparison reference value is first determined as the median of the SIM results for transfer standard TS 03.04.04, as described in section 8 of the SIM.M.FF-K4 Final Report.
Then the linking process uses common participation of CENAM and INMETRO in both key comparisons, as described in section 9 of the same Report.
Pair-wise degrees of equivalence involving CCM.FF-K4 and SIM.M.FF-K4 are given on page 18 of the SIM.M.FF-K4 Final Report.

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.13

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the Final Report.
xR = 98.6311 mL and UR = 0.0010 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.14

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the Final Report.
xR = 97.7039 mL and UR = 0.0011 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.15

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the Final Report.
xR = 98.3995 mL and UR = 0.0010 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
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CCM.FF-K4 and APMP.M.FF-K4

  • Key comparison CCM.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.17

The key comparison reference value, xR, is computed as the median of the results. Its expanded uncertainty UR is approximately given at a 95% level of confidence. The details are explained in Appendix C of the Final Report.
xR = 102.1843 mL and UR = 0.0012 mL

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative value:
Di = (xi - xR)/xR and its expanded uncertainty Ui at approximately a 95% level of confidence.

The degree of equivalence between two laboratories i and j is given by a pair of terms, both expressed in relative value:
Dij = Di - Dj and its expanded uncertainty Uij at approximately a 95% level of confidence.
  • Linking APMP.M.FF-K4 to CCM.FF-K4

The linking process uses common participation of NMIA and CENAM in both key comparisons, as described in section 7 of the APMP.M.FF-K4 Final Report.
Pair-wise degrees of equivalence involving APMP.M.FF-K4 participants are given on page 19 of the APMP.M.FF-K4 Final Report.

Comparison
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Results
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CCM.FF-K4, EURAMET.M.FF-K4.b, SIM.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 20 L

  • Key comparison CCM.FF-K4

xi : volume of water the transfer standard is able to deliver after a 60 second period of dripping-off at a reference temperature of 20 °C, measured by laboratory i
ui : standard uncertainty of xi

TRANSFER STANDARD: TS 710-04

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 19 996.71 0.17 Dec 2003
 NIST 19 996.42 0.38 Jan 2004
 NRC 19 996.88 0.31 Mar 2004
 SP 19 992.87 0.36 Apr 2004
 PTB 19 996.80 0.20 Jun 2004
 INRIM 19 997.30 0.13 Aug / Oct 2004
 NMIA 19 996.80 0.23 Oct / Dec 2004
 INMETRO 19 996.77 0.15 Feb 2005

TRANSFER STANDARD: TS 710-05

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 19 997.31 0.17 Dec 2003
 NIST 19 996.83 0.25 Jan 2004
 NRC 19 997.75 0.31 Mar 2004
 SP 19 997.40 0.36 Apr 2004
 PTB 19 997.44 0.20 Jun 2004
 INRIM 19 998.00 0.15 Aug / Oct 2004
 NMIA 19 997.16 0.22 Oct / Dec 2004
 INMETRO 19 997.33 0.14 Feb 2005

TRANSFER STANDARD: TS 710-06

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 20 005.60 0.17 Dec 2003
 NIST 20 005.04 0.37 Jan 2004
 NRC 20 005.98 0.31 Mar 2004
 SP 20 005.63 0.36 Apr 2004
 PTB 20 005.54 0.20 Jun 2004
 INRIM 20 005.96 0.14 Aug / Oct 2004
 NMIA 20 005.59 0.22 Oct / Dec 2004
 INMETRO 20 005.54 0.15 Feb 2005

  • Key comparison EURAMET.M.FF-K4.b

TRANSFER STANDARD : TS 710-04

xi-EUR.b : volume of water measured by laboratory i participant in EURAMET.M.FF-K4.b
Ui-EUR.b : expanded uncertainty (k = 2) of xi-EUR.b

 Lab i xi-EUR.b
/ mL		 Ui-EUR.b
/ mL		 Date of measurement
 SP 20 002.44 0.49 May 07
 JV 20 002.87 0.80 Jul 07
 METAS 20 000.95 1.22 Aug 07
 IPQ

20 002.47

0.58

Aug 07

 VSL

20 002.07

0.70

Sep 07

 SMU

20 001.72

0.40

Sep 07

 MKEH

20 002.32

0.36

Oct 07

 INRIM

20 002.14

0.39

Nov 07

 PTB

20 002.04

0.39

Jan 08

 DMDM

20 002.05

0.68

Feb 08

 UME 20 002.23 0.39 Feb 08
 EIM 20 001.95 0.33 Mar 08
 BEV 20 002.11 0.48 Apr 08
 CMI

20 000.95

1.74

Apr 08

  • Key comparison SIM.M.FF-K4

TRANSFER STANDARD : TS 710-05

xi-SIM : volume of water measured by laboratory i participant in SIM.M.FF-K4
ui-SIM : standard uncertainty of xi-SIM

 Lab i xi-SIM
/ mL		 Ui-SIM
/ mL		 Date of measurement
 CENAM 19 995.03 0.25 Jan 07
 NIST 19 995.79 0.59 Mar 07
 BSJ 19 996.62 6.40 Apr 07
 LACOMET

19 990.39

1.46

Jun 07

 CENAMEP

19 995.47

0.53

Aug 07

 INDECOPI

19 994.45

0.89

Oct 07

 IBMETRO

19 994.18

0.96

Feb 08

 LATU

19 993.50

0.59

Apr 08

 INTI

19 995.04

0.12

Aug 08

 INMETRO

19 995.06

0.23

Oct 08

  • Key comparison APMP.M.FF-K4

TRANSFER STANDARD : TS 710-04

xi-APMP : volume of water measured by laboratory i participant in APMP.M.FF-K4
Ui-APMP : expanded uncertainty (k = 2, unless otherwise stated) of xi-APMP

 Lab i xi-APMP
/ mL		 Ui-APMP
/ mL		 Date of measurement
 CENAM 19 992.94 0.65 (k = 2.09) Jul 06
 NMIA 19 992.87 0.44 Jul - Aug 06
 SCL 19 992.50 0.50 Aug - Sep 06
 KRISS

19 992.87

0.44

Sep 06

 NIM

19 992.98

0.65 (k = 1.96)

Oct 06

 NMISA

19 991.57

2.30 (k = 2.28)

Nov 06 - Jan 07

 NIMT

19 990.03

0.95

Jan - Feb 07

 NMIJ

19 993.10

2.20

Feb - Mar 07

 VMI-STAMEQ

19 992.33

0.66

Jun 07

 MUSSD

19 993.39

0.72 (k = 2.19)

Jul 07

 NMIA 19 992.85 0.44 Jul - Aug 07
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CCM.FF-K4, EUROMET.M.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL

Key comparison CCM.FF-K4

TRANSFER STANDARD: TS 03.04.03

xi : volume of water the transfer standard contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 99.8935 0.00077 Dec 2003
 NRC 99.8978 0.00080 Mar 2004
 SP 99.8950 0.0016 Apr 2004
 INRIM 99.8930 0.00083 Aug / Oct 2004
 NMIA 99.8955 0.0011 Oct / Dec 2004
 INMETRO 99.8929 0.00061 Feb 2005

  • Key comparison EUROMET.M.FF-K4

xi-EUR : volume of water measured by laboratory i participant in EUROMET.M.FF-K4 (see Table 6 on page 8 of the Final Report)
ui-EUR : standard uncertainty of xi-EUR

 Lab i xi-EUR
/ mL		 ui-EUR
/ mL		 Date of measurement
 IPQ 100.0917 0.0012 Mar 2003
 CMI 100.0878 0.0028 Nov 2002
 LNE 100.0924 0.0007 Jan 2003
 FORCE

100.0918

0.0050

Feb 2003

 PTB

100.0903

0.0006

Mar 2003

 NMi-VSL

100.0926

0.0030

Apr 2003

 UME

100.0936

0.0043

Jun 2003

 CEM

100.0928

0.0009

Jul 2003

 INRIM

100.0922

0.0012

Sep 2003

 OMH

100.0904

0.0008

Nov 2003

 EIM 100.1017 0.0077 Dec 2003
 BEV 100.0927 0.00205 Jan 2004
 SP 100.0920 0.0039 Mar 2004

  • Key comparison APMP.M.FF-K4

TRANSFER STANDARD : TS 03.04.03

xi-APMP : volume of water measured by laboratory i participant in APMP.M.FF-K4
Ui-APMP : expanded uncertainty (k = 2, unless otherwise stated) of xi-APMP

 Lab i xi-APMP
/ mL		 Ui-APMP
/ mL		 Date of measurement
 CENAM 99.4028 0.0027 (k = 2.02) Jul 06
 NMIA 99.4040 0.0020 Jul - Aug 06
 SCL 99.3992 0.0070 Aug - Sep 06
 NIM

99.4029

0.0016 (k = 1.96)

Oct 06

 NMISA

99.3953

0.0104 (k = 2.37)

Nov 06 - Jan 07

 NIMT

99.3894

0.0024

Jan - Feb 07

 VMI-STAMEQ

99.4078

0.0034

Jun 07

 MUSSD

99.3360

0.0067

Jul 07

 NMIA 99.4048 0.0020 Jul - Aug 07
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CCM.FF-K4 and SIM.M.FF-K4

  • Key comparison CCM.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.04

xi : volume of water the transfer standard contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 100.159 4 0.000 87 Dec 2003
 NRC 100.163 6 0.000 75 Mar 2004
 SP 100.161 2 0.001 6 Apr 2004
 INRIM 100.157 8 0.000 84 Aug / Oct 2004
 NMIA 100.160 9 0.001 1 Oct / Dec 2004
 INMETRO 100.158 5 0.000 72 Feb 2005

  • Key comparison SIM.M.FF-K4

During the comparison, three transfer standards were used, but one of the pycnometers (serial 03.04.15) suffered an irreversible damage; this occurred after INDECOPI tests. Therefore, pycnometer 03.01.15 was tested by CENAM, BSJ, LACOMET, CENAMEP AIP and INDECOPI. This transfer standard was then replaced by pycnometer 03.01.17, which was measured by CENAM, IBMETRO, LATU, INTI and INMETRO.

Degrees of equivalence are computed using results from pycnometer 03.04.04, as it is the only artefact measured by all participants. Only results obtained with this transfer standard are reported here.

MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.04.04

xi-SIM : volume of water measured by laboratory i participant in SIM.M.FF-K4
ui-SIM : standard uncertainty of xi-SIM

 Lab i xi-SIM
/ mL		 ui-SIM
/ mL		 Date of measurement
 CENAM 99.080 2 0.001 6 Jan 2007
 BSJ 100.130 7 0.037 Apr 2007
 LACOMET 99.081 8 0.003 1 Jun 2007
 CENAMEP 99.079 0 0.001 4 Aug 2007
 INDECOPI 99.076 9 0.003 5 Oct 2007
 IBMETRO

99.083 3

0.001 7

Feb 2008

 LATU

99.083 1

0.001 3

Apr 2008

 INTI

99.073 0

0.003 0

Aug 2008

 INMETRO 99.078 9 0.000 95 Oct 2008

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.13

xi : volume of water the transfer standard is contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 98.630 0 0.000 86 Dec 2003
 NRC 98.633 6 0.000 95 Mar 2004
 SP 98.631 0 0.001 4 Apr 2004
 INRIM 98.629 5 0.000 84 Aug / Oct 2004
 NMIA 98.631 6 0.000 98 Oct / Dec 2004
 INMETRO 98.631 5 0.000 65 Feb 2005

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.14

xi : volume of water the transfer standard is contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 97.702 4 0.000 85 Dec 2003
 NRC 97.707 7 0.000 85 Mar 2004
 SP 97.705 6 0.001 4 Apr 2004
 INRIM 97.702 2 0.000 85 Aug / Oct 2004
 NMIA 97.704 6 0.001 0 Oct / Dec 2004
 INMETRO 97.703 2 0.000 71 Feb 2005

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MEASURAND: Volume
NOMINAL VALUE: 100 mL
TRANSFER STANDARD: TS 03.01.15

xi : volume of water the transfer standard contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 98.398 8 0.000 81 Dec 2003
 NRC 98.403 6 0.001 0 Mar 2004
 SP 98.401 0 0.001 4 Apr 2004
 INRIM 98.398 6 0.000 84 Aug / Oct 2004
 NMIA 98.399 9 0.000 99 Oct / Dec 2004
 INMETRO 98.398 4 0.000 64 Feb 2005

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CCM.FF-K4, and APMP.M.FF-K4

MEASURAND: Volume
NOMINAL VALUE: 100 mL

  • Key comparison CCM.FF-K4

TRANSFER STANDARD: TS 03.01.17

xi : volume of water the transfer standard contains at a reference temperature of
20 °C, measured by laboratory i
ui : standard uncertainty of xi

 Lab i xi
/ mL		 ui
/ mL		 Date of measurement
 CENAM 102.1840 0.0011 Dec 2003
 NRC 102.1887 0.00095 Mar 2004
 SP 102.1862 0.0016 Apr 2004
 INRIM 102.1831 0.00084 Aug / Oct 2004
 NMIA 102.1846 0.00098 Oct / Dec 2004
 INMETRO 102.1823 0.00076 Feb 2005

  • Key comparison APMP.M.FF-K4

TRANSFER STANDARD : TS 03.01.17

xi-APMP : volume of water measured by laboratory i participant in APMP.M.FF-K4
Ui-APMP : expanded uncertainty (k = 2, unless otherwise stated) of xi-APMP

 Lab i xi-APMP
/ mL		 Ui-APMP
/ mL		 Date of measurement
 CENAM 100.9309 0.0033 (k = 2.02) July 2006
 NMIA 100.9332 0.0021 Jul - Aug 2006
 SCL 100.9283 0.0070 Aug - Sep 2006
 NIM

100.9336

0.0016 (k = 1.96)

October 2006

 NMISA

100.9330

0.0045 (k = 2.37)

Nov 2006 - Jan 2007

 NIMT

100.9177

0.0024

Jan - Feb 2007

 VMI-STAMEQ

100.9361

0.0034

June 2007

 MUSSD

100.9227

0.0064

July 2007

 NMIA 100.9332 0.0021 Jul - Aug 2007