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Comparison
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Results
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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 1 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV/V

Click on the graph for a closer view

Red diamonds : participants in CCEM-K9
Green triangles : participants in EUROMET.EM-K9 only
Blue circles: participants in SIM.EM-K9 only
Orange squares : participants in APMP.EM-K9
Brown square : participant in SIM.EM-K9.1 only

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 10 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV/V

Click on the graph for a closer view

Red diamonds : participants in CCEM-K9
Green triangles : participants in EUROMET.EM-K9 only
Blue circles: participants in SIM.EM-K9 only
Orange squares : participants in APMP.EM-K9

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 20 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV/V

Click on the graph for a closer view

Red diamonds : participants in CCEM-K9
Green triangles : participants in EUROMET.EM-K9 only
Blue circles: participants in SIM.EM-K9 only
Orange squares : participants in APMP.EM-K9
Brown square : participant in SIM.EM-K9.1 only

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 50 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV/V

Click on the graph for a closer view

Red diamonds : participants in CCEM-K9
Green triangles : participants in EUROMET.EM-K9 only
Blue circles : participants in SIM.EM-K9 only
Orange squares : participants in APMP.EM-K9
Brown square : participant in SIM.EM-K9.1

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 100 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV/V

Click on the graph for a closer view

Red diamonds : participants in CCEM-K9
Green triangles : participants in EUROMET.EM-K9 only
Blue circles: participants in SIM.EM-K9 only
Orange squares : participants in APMP.EM-K9
Brown square : participant in SIM.EM-K9.1 only

Comparison
Comparison close
Results
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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 1 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95% level of confidence, both expressed in µV/V

Dark blue :participants in CCEM-K9
Green : participants in EUROMET.EM-K9 only
Blue : participants in SIM.EM-K9 only
Orange : participants in APMP.EM-K9
Brown : participant in SIM.EM-K9.1 only

Matrix of equivalence for CCEM-K9 and EUROMET.EM-K9

Pair-wise degrees of equivalence between participants in CCEM-K9 only and in EUROMET.EM-K9 only are not explicitely computed.
Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 17 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE5.815.8
AREPA4.520.9
NPL-0.512.7
SP2.58.6
IEN-0.914.6
CEM-6.535.9
PTB-0.77.4
NMi-VSL2.819.8
INTI-4.713.8
NMIA0.810.7
NRC0.39.6
VNIIM-0.820.1
METAS-1.75.4
NIST7.216.8
NIM-1.024.1
BEV0.518.4
MIKES-0.110.6
INETI13.532.1
OMH-0.843.1
JV-1.322.3
UME0.730.3
CMI7.350.1

Results are presented under A4 printable format in the Summary Results for 1000 V (PDF file).

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 10 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95% level of confidence, both expressed in µV/V

Dark blue :participants in CCEM-K9
Green : participants in EUROMET.EM-K9 only
Blue : participants in SIM.EM-K9 only
Orange : participants in APMP.EM-K9

Matrix of equivalence for CCEM-K9 and EUROMET.EM-K9

Pair-wise degrees of equivalence between participants in CCEM-K9 only and in EUROMET.EM-K9 only are not explicitely computed.
Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 18 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE1.334.8
AREPA4.220.8
NPL-2.812.7
SP3.29.5
IEN-2.614.9
CEM0.239.9
PTB-1.57.2
NMi-VSL-0.819.7
INTI-2.315.7
NMIA2.713.7
NRC3.79.5
VNIIM-0.720.4
METAS-1.76.3
NIST3.916.8
NIM0.624.3
BEV3.220.4
MIKES-6.810.6
INETI25.240.1
OMH3.352.1
JV-0.524.3
UME3.530.3
CMI2.750.1

Results are presented under A4 printable format in the Summary Results for 1000 V (PDF file).

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 20 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95% level of confidence, both expressed in µV/V

Dark blue :participants in CCEM-K9
Green : participants in EUROMET.EM-K9 only
Blue : participants in SIM.EM-K9 only
Orange : participants in APMP.EM-K9
Brown : participant in SIM.EM-K9.1 only

Matrix of equivalence for CCEM-K9 and EUROMET.EM-K9

Pair-wise degrees of equivalence between participants in CCEM-K9 only and in EUROMET.EM-K9 only are not explicitely computed.
Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 19 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-2.834.8
AREPA5.325.7
NPL-5.722.8
SP2.310.5
IEN-6.624.8
CEM-1.743.8
PTB-2.07.1
NMi-VSL-4.924.7
INTI-5.019.7
NMIA3.015.7
NRC6.09.4
VNIIM-4.932.2
METAS-1.66.1
NIST5.715.9
NIM1.429.0
BEV5.324.4
MIKES-11.611.5
INETI34.352.1
OMH-15.480.1
JV-2.428.2
UME4.640.2
CMI4.062.1

Results are presented under A4 printable format in the Summary Results for 1000 V (PDF file).

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 50 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95% level of confidence, both expressed in µV/V

Dark blue :participants in CCEM-K9
Green : participants in EUROMET.EM-K9 only
Blue : participants in SIM.EM-K9 only
Orange : participants in APMP.EM-K9
Brown : participant in SIM.EM-K9.1 only

Matrix of equivalence for CCEM-K9 and EUROMET.EM-K9

Pair-wise degrees of equivalence between participants in CCEM-K9 only and in EUROMET.EM-K9 only are not explicitely computed.
Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 20 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-11.868.8
AREPA1.840.7
NPL-7.231.6
SP4.814.2
IEN-11.036.9
CEM-16.263.8
PTB-2.08.7
NMi-VSL-5.334.6
INTI-4.123.6
NMIA4.927.5
NRC7.911.0
VNIIM-22.351.4
METAS-1.38.8
NIST-3.320.9
NIM-2.845.1
BEV--
MIKES-27.323.8
INETI53.868.2
OMH-25.3120.1
JV0.442.3
UME6.444.3
CMI-8.178.2

Results are presented under A4 printable format in the Summary Results for 1000 V (PDF file).

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 100 kHz

Degrees of equivalence: Di and expanded uncertainty Ui at a 95% level of confidence, both expressed in µV/V

Dark blue : participants in CCEM-K9
Green : participants in EUROMET.EM-K9 only
Blue : participants in SIM.EM-K9 only
Orange : participants in APMP.EM-K9
Brown : participant in SIM.EM-K9.1

Matrix of equivalence for CCEM-K9 and EUROMET.EM-K9

Pair-wise degrees of equivalence between participants in CCEM-K9 only and in EUROMET.EM-K9 only are not explicitely computed.
Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 21 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-20.568.3
AREPA0.580.4
NPL-10.561.2
SP10.520.8
IEN-13.478.8
CEM-9.597.5
PTB-3.528.3
NMi-VSL-8.349.0
INTI-2.738.7
NMIA12.339.8
NRC-0.721.8
VNIIM22.7100.5
METAS3.326.2
NIST-6.127.4
NIM-19.658.8
BEV--
MIKES-40.382.7
INETI89.5102.5
OMH-27.1200.2
JV11.668.7
UME12.066.8
CMI-10.7112.4

Results are presented under A4 printable format in the Summary Results for 1000 V (PDF file).

Comparison
Comparison close
RMO comparison
Linked comparison
SIM.EM-K9
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Metrology area, Sub-field Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Description Comparison of AC/DC voltage transfer difference
Time of measurements 2004
Status Approved for equivalence
Final Reports of the comparisons
Metrologia, 2009, 46, Tech. Suppl., 01004
Measurand AC/DC voltage transfer difference
Parameters Voltage: 1000 V
Frequency: 1 kHz, 10 kHz, 20 kHz, 50 kHz and 100 kHz
Transfer device AC/DC transfer standard Fluke 792A
Comparison type Key Comparison
Consultative Committee CCEM (Consultative Committee for Electricity and Magnetism)
Conducted by SIM (Inter-American Metrology System)
RMO Internal Identifier SIM 1.9.K9
Comments

Results published on 30 March 2009

EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and SIM.EM-K9.1 results are linked to those of CCEM-K9 for common voltages and frequencies

AC/DC voltage transfer standards
Pilot institute CENAM
Centro Nacional de Metrologia
Mexico
Contact person S. Campos

+52 442 211 0500 ext 3424
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
CENAM

Centro Nacional de Metrologia, Mexico, SIM

INMETRO

Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM

INTI

Instituto Nacional de Tecnologia Industrial, Argentina, SIM

NIST

National Institute of Standards and Technology, United States, SIM

NRC

National Research Council, Canada, SIM

UTE

Administración Nacional de Usinas y Transmisiones Eléctricas, Uruguay, SIM

Comparison
Comparison close
Results
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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 1 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9
The key comparison reference value, xR, is computed as the weighted average of the adjusted values obtained by the CCEM-K9 participants.
Its expanded uncertainty is UR = 2uR, where uR is the standard uncertainty of the weighted average. All adjusted values from CCEM-K9 participants have been taken into account in the calculation, except the value of AREPA, which is traceable to PTB.

xR = 0.2 µV/V, UR = 3.1 µV/V
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by two terms: Di = (xi - xR) and its expanded uncertainty at a 95 % level of confidence Ui computed as explained on page 15 of the CCEM-K9 Final Report and on page 12 of the EUROMET.EM-K9 Final Report, both expressed in µV/V.
The degree of equivalence between two laboratories i and j is given by two terms:
Dij = (Di - Dj) and its expanded uncertainty Uij at a 95 % level of confidence computed as explained in the Appendices 1 of the CCEM-K9 Final Report and EUROMET.EM-K9 Final Report, both expressed in µV/V.
The CCEM-K9 Matrix of equivalence is extended with degrees of equivalence between participants in EUROMET.EM-K9.
  • Linking SIM.EM-K9 to CCEM-K9

INTI, NRC and NIST provide the link between key comparisons CCEM-K9 and SIM.EM-K9. The linkage process is described in section 11 of SIM.EM-K9 Final Report.
The degree of equivalence of the laboratory i participant in SIM.EM-K9 with respect to the key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2). The computation of the degrees of equivalence is explained in SIM.EM-K9 Final Report.
The degree of equivalence between two laboratories i and j is not computed for the laboratories participant in key comparison SIM.EM-K9.
  • Linking APMP.EM-K9 to CCEM-K9

The linkage process is based on the results of the common participants, NMIA and PTB, and is detailed in Sections 8 and 9 of the APMP.EM-K9 Final Report.
This makes it possible to extend the graph of equivalence to participants in APMP.EM-K9 only.

Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 17 of the Final Report. They are not reported here.

  • Linking SIM.EM-K9.1 to CCEM-K9

The linkage process is based on the results of the common participant, the LNE, and is detailed in Section 9 of the SIM.EM-K9.1 Final Report. This makes it possible to extend the graph of equivalence to INMETRO.

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 10 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

The key comparison reference value, xR, is computed as the weighted average of the adjusted values obtained by the CCEM-K9 participants.
Its expanded uncertainty is UR = 2uR, where uR is the standard uncertainty of the weighted average. All adjusted values from CCEM-K9 participants have been taken into account in the calculation, except the value of AREPA, which is traceable to PTB.

xR = -2.3 µV/V, UR = 3.4 µV/V

The degree of equivalence of laboratory i with respect to the key comparison reference value is given by two terms: Di = (xi - xR) and its expanded uncertainty at a 95 % level of confidence Ui computed as explained on page 15 of the CCEM-K9 Final Report and on page 12 of the EUROMET.EM-K9 Final Report, both expressed in µV/V.

The degree of equivalence between two laboratories i and j is given by two terms:
Dij = (Di - Dj) and its expanded uncertainty Uij at a 95 % level of confidence computed as explained in the Appendices 1 of the CCEM-K9 Final Report and EUROMET.EM-K9 Final Report, both expressed in µV/V.
The CCEM-K9 Matrix of equivalence is extended with degrees of equivalence between participants in EUROMET.EM-K9.

  • Linking SIM.EM-K9 to CCEM-K9

INTI, NRC and NIST provide the link between key comparisons CCEM-K9 and SIM.EM-K9. The linkage process is described in section 11 of SIM.EM-K9 Final Report.

The degree of equivalence of the laboratory i participant in SIM.EM-K9 with respect to the key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2). The computation of the degrees of equivalence is explained in SIM.EM-K9 Final Report.

The degree of equivalence between two laboratories i and j is not computed for the laboratories participant in key comparison SIM.EM-K9.
  • Linking APMP.EM-K9 to CCEM-K9

The linkage process is based on the results of the common participants, NMIA and PTB, and is detailed in Sections 8 and 9 of the APMP.EM-K9 Final Report.
This makes in possible to extend the graph of equivalence to participants in APMP.EM-K9 only.

Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 18 of the Final Report. They are not reported here.

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 20 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9
The key comparison reference value, xR, is computed as the weighted average of the adjusted values obtained by the CCEM-K9 participants.
Its expanded uncertainty is UR = 2uR, where uR is the standard uncertainty of the weighted average. All adjusted values from CCEM-K9 participants have been taken into account in the calculation, except the value of AREPA, which is traceable to PTB.

xR = -5.2 µV/V, UR = 3.7 µV/V
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by two terms: Di = (xi - xR) and its expanded uncertainty at a 95 % level of confidence Ui computed as explained on page 15 of the CCEM-K9 Final Report and on page 12 of the EUROMET.EM-K9 Final Report, both expressed in µV/V.
The degree of equivalence between two laboratories i and j is given by two terms:
Dij = (Di - Dj) and its expanded uncertainty Uij at a 95 % level of confidence computed as explained in the Appendices 1 of the CCEM-K9 Final Report and EUROMET.EM-K9 Final Report, both expressed in µV/V.
The CCEM-K9 Matrix of equivalence is extended with degrees of equivalence between participants in EUROMET.EM-K9.
  • Linking SIM.EM-K9 to CCEM-K9

INTI, NRC and NIST provide the link between key comparisons CCEM-K9 and SIM.EM-K9. The linkage process is described in section 11 of SIM.EM-K9 Final Report.
The degree of equivalence of the laboratory i participant in SIM.EM-K9 with respect to the key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2). The computation of the degrees of equivalence is explained in SIM.EM-K9 Final Report.
The degree of equivalence between two laboratories i and j is not computed for the laboratories participant in key comparison SIM.EM-K9.
  • Linking APMP.EM-K9 to CCEM-K9

The linkage process is based on the results of the common participants, NMIA and PTB, and is detailed in Sections 8 and 9 of the APMP.EM-K9 Final Report.
This makes it possible to extend the graph of equivalence to participants in APMP.EM-K9 only.

Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 19 of the Final Report. They are not reported here.

  • Linking SIM.EM-K9.1 to CCEM-K9

The linkage process is based on the results of the common participant, the LNE, and is detailed in Section 9 of the SIM.EM-K9.1 Final Report. This makes it possible to extend the graph of equivalence to INMETRO.

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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 50 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9
The key comparison reference value, xR, is computed as the weighted average of the adjusted values obtained by the CCEM-K9 participants.
Its expanded uncertainty is UR = 2uR, where uR is the standard uncertainty of the weighted average. All adjusted values from CCEM-K9 participants have been taken into account in the calculation, except the value of AREPA, which is traceable to PTB.

xR = -19.9 µV/V, UR = 5.0 µV/V
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by two terms: Di = (xi - xR) and its expanded uncertainty at a 95 % level of confidence Ui computed as explained on page 15 of the CCEM-K9 Final Report and on page 12 of the EUROMET.EM-K9 Final Report, both expressed in µV/V.
The degree of equivalence between two laboratories i and j is given by two terms:
Dij = (Di - Dj) and its expanded uncertainty Uij at a 95 % level of confidence computed as explained in the Appendices 1 of the CCEM-K9 Final Report and EUROMET.EM-K9 Final Report, both expressed in µV/V.
The CCEM-K9 Matrix of equivalence is extended with degrees of equivalence between participants in EUROMET.EM-K9.
  • Linking SIM.EM-K9 to CCEM-K9

INTI, NRC and NIST provide the link between key comparisons CCEM-K9 and SIM.EM-K9. The linkage process is described in section 11 of SIM.EM-K9 Final Report.
The degree of equivalence of the laboratory i participant in SIM.EM-K9 with respect to the key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2). The computation of the degrees of equivalence is explained in SIM.EM-K9 Final Report.
The degree of equivalence between two laboratories i and j is not computed for the laboratories participant in key comparison SIM.EM-K9.
  • Linking APMP.EM-K9 to CCEM-K9

The linkage process is based on the results of the common participants, NMIA and PTB, and is detailed in Sections 8 and 9 of the APMP.EM-K9 Final Report.
This makes it possible to extend the graph of equivalence to participants in APMP.EM-K9 only.

Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 20 of the Final Report. They are not reported here.

  • Linking SIM.EM-K9.1 to CCEM-K9

The linkage process is based on the results of the common participant, the LNE, and is detailed in Section 9 of the SIM.EM-K9.1 Final Report. This makes it possible to extend the graph of equivalence to INMETRO.

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 100 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9
The key comparison reference value, xR, is computed as the weighted average of the adjusted values obtained by the CCEM-K9 participants.
Its expanded uncertainty is UR = 2uR, where uR is the standard uncertainty of the weighted average. All adjusted values from CCEM-K9 participants have been taken into account in the calculation, except the value of AREPA, which is traceable to PTB.

xR = -53.1 µV/V, UR = 10.0 µV/V
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by two terms: Di = (xi - xR) and its expanded uncertainty at a 95 % level of confidence Ui computed as explained on page 15 of the CCEM-K9 Final Report and on page 12 of the EUROMET.EM-K9 Final Report, both expressed in µV/V.
The degree of equivalence between two laboratories i and j is given by two terms:
Dij = (Di - Dj) and its expanded uncertainty Uij at a 95 % level of confidence computed as explained in the Appendices 1 of the CCEM-K9 Final Report and EUROMET.EM-K9 Final Report, both expressed in µV/V.
The CCEM-K9 Matrix of equivalence is extended with degrees of equivalence between participants in EUROMET.EM-K9.
  • Linking SIM.EM-K9 to CCEM-K9

INTI, NRC and NIST provide the link between key comparisons CCEM-K9 and SIM.EM-K9. The linkage process is described in section 11 of SIM.EM-K9 Final Report.
The degree of equivalence of the laboratory i participant in SIM.EM-K9 with respect to the key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2). The computation of the degrees of equivalence is explained in SIM.EM-K9 Final Report.
The degree of equivalence between two laboratories i and j is not computed for the laboratories participant in key comparison SIM.EM-K9.
  • Linking APMP.EM-K9 to CCEM-K9

The linkage process is based on the results of the common participants, NMIA and PTB, and is detailed in Sections 8 and 9 of the APMP.EM-K9 Final Report.
This makes it possible to extend the graph of equivalence to participants in APMP.EM-K9 only.

Pair-wise degrees of equivalence inside APMP.EM-K9 are given in Table 21 of the Final Report. They are not reported here.

  • Linking SIM.EM-K9.1 to CCEM-K9

The linkage process is based on the results of the common participant, the LNE, and is detailed in Section 9 of the SIM.EM-K9.1 Final Report. This makes it possible to extend the graph of equivalence to INMETRO.

Comparison
Comparison close
Results
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CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 1 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

xi : adjusted value of the measurement reported by laboratory i (see on page 13 of the CCEM Final Report and on page 11 of the EUROMET.EM-K9 Final Report)
ULab i : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)		 ULab i
/ (µV/V)		 Date of measurement
       
 LNE* 6.0 16.1 Feb 2000
 BEV**

0.7

18.1

Apr 2000
 MIKES**

0.1

10.1

May 2000
 INETI**

13.7

32.0

Jun 2000
 AREPA* 4.7 21.1 Jul 2000
 NPL* -0.3 13.1 Aug 2000
 SP* 2.7 9.1 Sep 2000
 IEN* -0.7 14.9 Oct 2000
 CEM* -6.3 36.0 Nov 2000
 PTB* -0.5 8.0 Jan 2001
 NMi-VSL* 3.0 20.0 May 2001
 OMH**

-0.6

43.0

Oct 2001
 JV**

-1.1

22.1

Mar 2002
 UME**

0.9

30.1

Apr 2002
 INTI -4.5 14.1 Jul 2000
 NMIA 1.0 11.1 Nov 2000
 NRC 0.5 10.1 Mar 2001
 VNIIM -0.6 20.3 May 2001
 METAS* -1.5 6.2 Aug 2001
 NIST 7.4 17.1 Jan 2002
 NIM -0.8 24.3 May 2002
 CMI**

7.5

50.0

Dec 2002

* common participant in CCEM-K9 and EUROMET.EM-K9
** participant in EUROMET.EM-K9 only

  • Key comparison SIM.EM-K9

dLab i-SIM : result of measurement carried out by laboratory i participant in SIM.EM-K9
ULab i-SIM : expanded uncertainty (k = 2) of dLab i-SIM
uLab i-SIM : standard uncertainty (k = 1) of dLab i-SIM

 Lab i dLab i-SIM
/ (µV/V)		 ULab i-SIM
/ (µV/V)

Date of measurement
       
 NIST 10 11.6 Jan to Feb 04
 INTI

5.2

16

 04 Mar to 16 Apr 04
 INMETRO 5 18 28 Jun to 28 July 04
 CENAM

5.7

15

07 to 24 Aug 04
 NRC

6.7

10

Sep to Oct 04
       
 Lab i dLab i-SIM
/ (µV/V)		 uLab i-SIM
/ (µV/V)

Date of measurement
       
 UTE 4 11 18 May to 22 Jun 04
  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 3 of the Final Report. They were taken between 2000 and 2004.

  • Key comparison SIM.EM-K9.1

Measurement results of the participants in key comparison SIM.EM-K9.1 are given in Table IV of the Final Report. They were taken in 2012.

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 10 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

xi : adjusted value of the measurement reported by laboratory i (see on page 13 of the CCEM Final Report and on page 11 of the EUROMET.EM-K9 Final Report)
ULab i : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)		 ULab i
/ (µV/V)		 Date of measurement
 LNE* -1.0 35.0 Feb 2000
 BEV**

0.9

20.1

Apr 2000

 MIKES**

-9.1

10.0

May 2000

 INETI**

22.9

40.0

Jun 2000

 AREPA* 1.9 21.1 Jul 2000
 NPL* -5.1 13.1 Aug 2000
 SP* 0.9 10.1 Sep 2000
 IEN* -4.9 15.3 Oct 2000
 CEM* -2.1 40.0 Nov 2000
 PTB* -3.8 8.0 Jan 2001
 NMi-VSL* -3.1 20.0 May 2001
 OMH**

1.0

52.0

Oct 2001

 JV**

-2.8

24.1

Mar 2002

 UME**

1.2

30.1

Apr 2002

 INTI -4.6 16.1 Jul 2000
 NMIA 0.4 14.1 Nov 2000
 NRC 1.4 10.1 Mar 2001
 VNIIM -3.0 20.7 May 2001
 METAS* -4.0 7.2 Aug 2001
 NIST 1.6 17.1 Jan 2002
 NIM -1.7 24.5 May 2002
 CMI**

0.4

50.0

Dec 2002

* common participant in CCEM-K9 and EUROMET.EM-K9
** participant in EUROMET.EM-K9 only

  • Key comparison SIM.EM-K9

dLab i-SIM : result of measurement carried out by laboratory i participant in SIM.EM-K9
ULab i-SIM : expanded uncertainty (k = 2) of dLab i-SIM
uLab i-SIM : standard uncertainty (k = 1) of dLab i-SIM

 Lab i dLab i-SIM
/ (µV/V)		 ULab i-SIM
/ (µV/V)

Date of measurement

 NIST 4 11.7 Jan to Feb 04
 INTI

3.2

20

 04 Mar to 16 Apr 04
 INMETRO 0 18 28 Jun to 28 July 04
 CENAM

4.2

15

07 to 24 Aug 04

 NRC

2.9

10

Sep to Oct 04

 Lab i dLab i-SIM
/ (µV/V)		 uLab i-SIM
/ (µV/V)

Date of measurement

 UTE 10 12 18 May to 22 Jun 04
  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 3 of the Final Report. They were taken between 2000 and 2004.

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 20 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

xi : adjusted value of the measurement reported by laboratory i (see on page 13 of the CCEM Final Report and on page 11 of the EUROMET.EM-K9 Final Report)
ULab i : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)		 ULab i
/ (µV/V)		 Date of measurement
       
 LNE* -8.0 35.0 Feb 2000
 BEV**

0.1

24.1

Apr 2000
 MIKES**

-16.8

10.9

May 2000
 INETI**

29.1

52.0

Jun 2000
 AREPA* 0.1 26.0 Jul 2000
 NPL* -10.9 23.1 Aug 2000
 SP* -2.9 11.1 Sep 2000
 IEN* -11.8 25.1 Oct 2000
 CEM* -6.9 44.0 Nov 2000
 PTB* -7.2 8.0 Jan 2001
 NMi-VSL* -10.1 25.0 May 2001
 OMH**

-20.6

80.0

Oct 2001
 JV**

-7.6

28.0

Mar 2002
 UME**

-0.6

40.0

Apr 2002
 INTI -10.2 20.0 Jul 2000
 NMIA -2.2 16.1 Nov 2000
 NRC 0.8 10.1 Mar 2001
 VNIIM -10.1 32.4 May 2001
 METAS* -6.8 7.1 Aug 2001
 NIST 0.5 16.3 Jan 2002
 NIM -3.8 29.2 May 2002
 CMI**

-1.2

62.0

Dec 2002

* common participant in CCEM-K9 and EUROMET.EM-K9
** participant in EUROMET.EM-K9 only

  • Key comparison SIM.EM-K9

dLab i-SIM : result of measurement carried out by laboratory i participant in SIM.EM-K9
ULab i-SIM : expanded uncertainty (k = 2) of dLab i-SIM
uLab i-SIM : standard uncertainty (k = 1) of dLab i-SIM

 Lab i dLab i-SIM
/ (µV/V)		 ULab i-SIM
/ (µV/V)

Date of measurement
       
 NIST 1 14.1 Jan to Feb 04
 INTI

6.1

33

 04 Mar to 16 Apr 04
 INMETRO -2 18 28 Jun to 28 July 04
 CENAM

3.9

17

07 to 24 Aug 04
 NRC

-2.2

10

Sep to Oct 04
       
 Lab i dLab i-SIM
/ (µV/V)		 uLab i-SIM
/ (µV/V)

Date of measurement
       
 UTE 11 11 18 May to 22 Jun 04
  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 3 of the Final Report. They were taken between 2000 and 2004.

  • Key comparison SIM.EM-K9.1

Measurement results of the participants in key comparison SIM.EM-K9.1 are given in Table IV of the Final Report. They were taken in 2012.

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 50 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

xi : adjusted value of the measurement reported by laboratory i (see on page 13 of the CCEM Final Report and on page 11 of the EUROMET.EM-K9 Final Report)
ULab i : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)		 ULab i
/ (µV/V)		 Date of measurement
       
 LNE* -31.7 69.0 Feb 2000
 BEV**

-

-

Apr 2000
 MIKES**

-47.2

23.3

May 2000
 INETI**

33.9

68.0

Jun 2000
 AREPA* -18.1 41.0 Jul 2000
 NPL* -27.1 32.0 Aug 2000
 SP* -15.1 15.1 Sep 2000
 IEN* -30.9 37.2 Oct 2000
 CEM* -36.1 64.0 Nov 2000
 PTB* -21.9 10.0 Jan 2001
 NMi-VSL* -25.2 35.0 May 2001
 OMH**

-45.2

120.0

Oct 2001
 JV**

-19.5

42.0

Mar 2002
 UME**

-13.5

44.0

Apr 2002
 INTI -24.0 24.1 Jul 2000
 NMIA -15.0 28.0 Nov 2000
 NRC -12.0 12.1 Mar 2001
 VNIIM -42.2 51.6 May 2001
 METAS* -21.2 10.1 Aug 2001
 NIST -23.2 21.5 Jan 2002
 NIM -22.7 45.4 May 2002
 CMI**

-28.0

78.0

Dec 2002

* common participant in CCEM-K9 and EUROMET.EM-K9
** participant in EUROMET.EM-K9 only

  • Key comparison SIM.EM-K9

dLab i-SIM : result of measurement carried out by laboratory i participant in SIM.EM-K9
ULab i-SIM : expanded uncertainty (k = 2) of dLab i-SIM

 Lab i dLab i-SIM
/ (µV/V)		 ULab i-SIM
/ (µV/V)

Date of measurement
       
 NIST -18 15.4 Jan to Feb 04
 INTI

-1.7

37

 04 Mar to 16 Apr 04
 INMETRO -9 18 28 Jun to 28 July 04
 CENAM

3.3

27

07 to 24 Aug 04
 NRC

-10.6

13

Sep to Oct 04
  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 3 of the Final Report. They were taken between 2000 and 2004.

  • Key comparison SIM.EM-K9.1

Measurement results of the participants in key comparison SIM.EM-K9.1 are given in Table IV of the Final Report. They were taken in 2012.

print out

CCEM-K9, EUROMET.EM-K9, SIM.EM-K9, APMP.EM-K9 and
SIM.EM-K9.1

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 1000 V
FREQUENCY : 100 kHz

  • Key comparisons CCEM-K9 and EUROMET.EM-K9

xi : adjusted value of the measurement reported by laboratory i (see on page 13 of the CCEM Final Report and on page 11 of the EUROMET.EM-K9 Final Report)
ULab i : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)		 ULab i
/ (µV/V)		 Date of measurement
       
 LNE* -73.6 69.0 Feb 2000
 BEV**

-

-

Apr 2000
 MIKES**

-93.4

82.1

May 2000
 INETI**

36.4

102.0

Jun 2000
 AREPA* -52.6 81.0 Jul 2000
 NPL* -63.6 62.0 Aug 2000
 SP* -42.6 23.1 Sep 2000
 IEN* -66.5 79.4 Oct 2000
 CEM* -62.6 98.0 Nov 2000
 PTB* -56.6 30.0 Jan 2001
 NMi-VSL* -61.4 50.0 May 2001
 OMH**

-80.2

200.0

Oct 2001
 JV**

-41.5

68.0

Mar 2002
 UME**

-41.1

66.0

Apr 2002
 INTI -55.8 40.0 Jul 2000
 NMIA -40.8 41.0 Nov 2000
 NRC -53.8 24.0 Mar 2001
 VNIIM -30.4 101.0 May 2001
 METAS* -49.8 28.0 Aug 2001
 NIST -59.2 29.2 Jan 2002
 NIM -72.7 59.6 May 2002
 CMI**

-63.8

112.0

Dec 2002

* common participant in CCEM-K9 and EUROMET.EM-K9
** participant in EUROMET.EM-K9 only

  • Key comparison SIM.EM-K9

dLab i-SIM : result of measurement carried out by laboratory i participant in SIM.EM-K9
ULab i-SIM : expanded uncertainty (k = 2) of dLab i-SIM

 Lab i dLab i-SIM
/ (µV/V)		 ULab i-SIM
/ (µV/V)

Date of measurement
       
 NIST -35 23.4 Jan to Feb 04
 INTI

10.5

74

 04 Mar to 16 Apr 04
 INMETRO -25 42 28 Jun to 28 July 04
 CENAM

3.9

27

07 to 24 Aug 04
 NRC

-18

25

Sep to Oct 04

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 3 of the Final Report. They were taken between 2000 and 2004.

  • Key comparison SIM.EM-K9.1

Measurement results of the participants in key comparison SIM.EM-K9.1 are given in Table IV of the Final Report. They were taken in 2012.