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

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

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

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

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

CCEM-K9, EUROMET.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 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
Orange squares : participants in APMP.EM-K9 only

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 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
Orange squares : participants in APMP.EM-K9 only

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 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
Orange squares : participants in APMP.EM-K9 only

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 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
Orange squares : participants in APMP.EM-K9 only

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 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
Orange squares : participants in APMP.EM-K9 only

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).

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).

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).

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).

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).

CCEM-K9, EUROMET.EM-K9 and APMP.EM-K9

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 1 kHz

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

Red : participants in CCEM-K9
Green : participants in EUROMET.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 12 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE1.612.9
AREPA2.820.9
NPL-1.212.9
SP1.87.8
IEN-0.89.3
CEM-2.230.0
PTB-2.37.5
NMi-VSL0.814.7
INTI-3.211.9
NMIA2.48.8
NRC0.88.6
VNIIM0.516.5
METAS-1.45.6
NIST4.110.8
NIM-1.719.5
BEV-0.213.5
MIKES-0.98.8
INETI3.826.2
OMH-2.231.1
JV-0.520.3
UME-1.522.3
CMI1.838.2

Results are presented under A4 printable format in Summary Results for 500 V (PDF file).

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 10 kHz

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

Red : participants in CCEM-K9
Green : participants in EUROMET.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 13 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-0.320.9
AREPA2.920.9
NPL-5.112.8
SP2.98.7
IEN-2.89.1
CEM-1.129.9
PTB-0.67.5
NMi-VSL-2.114.7
INTI-3.913.8
NMIA3.18.7
NRC3.18.2
VNIIM0.016.9
METAS-1.35.5
NIST3.310.3
NIM-1.419.4
BEV1.915.4
MIKES-6.58.0
INETI-9.130.1
OMH-3.136.1
JV0.422.3
UME2.422.3
CMI-2.938.1

Results are presented under A4 printable format in Summary Results for 500 V (PDF file).

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 20 kHz

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

Red : participants in CCEM-K9
Green : participants in EUROMET.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 14 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-0.220.9
AREPA2.620.9
NPL-6.416.8
SP1.69.7
IEN-6.513.7
CEM1.629.9
PTB-1.27.3
NMi-VSL-3.419.7
INTI-3.315.8
NMIA3.79.6
NRC5.79.6
VNIIM-5.824.5
METAS-1.15.3
NIST3.810.8
NIM-0.521.1
BEV3.619.4
MIKES-8.28.8
INETI-12.436.1
OMH-1.340.1
JV0.124.3
UME2.126.3
CMI-2.346.1

Results are presented under A4 printable format in Summary Results for 500 V (PDF file).

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 50 kHz

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

Red : participants in CCEM-K9
Green : participants in EUROMET.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 15 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-2.735.8
AREPA1.020.7
NPL-8.023.7
SP5.013.5
IEN-12.219.9
CEM-6.037.8
PTB-1.69.1
NMi-VSL-4.824.6
INTI-4.017.6
NMIA7.014.5
NRC8.09.8
VNIIM-20.140.4
METAS-0.48.1
NIST-4.113.5
NIM-4.028.9
BEV7.021.5
MIKES-22.113.8
INETI-17.046.2
OMH1.963.1
JV1.834.3
UME2.836.2
CMI-18.056.2

Results are presented under A4 printable format in Summary Results for 500 V (PDF file).

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 100 kHz

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

Red : participants in CCEM-K9
Green : participants in EUROMET.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 16 of the APMP.EM-K9 Final Report.

   
Lab iDiUi
 / (µV/V)/ (µV/V)
LNE-1.735.3
AREPA6.040.4
NPL-9.045.5
SP11.019.7
IEN-14.447.1
CEM4.049.4
PTB-0.620.6
NMi-VSL-3.939.3
INTI-3.129.1
NMIA13.921.8
NRC0.922.9
VNIIM-20.359.9
METAS3.925.0
NIST-7.116.2
NIM-21.639.0
BEV19.032.0
MIKES-31.236.8
INETI-12.072.4
OMH-1.2100.3
JV14.448.7
UME10.056.6
CMI-13.180.4

Results are presented under A4 printable format in Summary Results for 500 V (PDF file).

Comparison
Comparison close
RMO comparison
Linked comparison
APMP.EM-K9
Metrology area, Sub-field Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Description AC/DC transfer difference at higher voltage
Time of measurements 2000 - 2004
Status Approved for equivalence
Final Reports of the comparisons
Measurand AC/DC voltage transfer difference
Parameters Voltage: 500 V and 1000 V
Frequency: 1 kHz, 10 kHz, 20 kHz, 50 kHz and 100 kHz
Transfer device Single-junction thermal voltage converter
Comparison type Key Comparison
Consultative Committee CCEM (Consultative Committee for Electricity and Magnetism)
Conducted by APMP (Asia Pacific Metrology Programme)
RMO Internal Identifier APMP Project No P-APMP.EM-K9
Comments

This comparison is intended for provisional equivalence only.

Results published on 10 November 2010

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 CMS/ITRI
Industrial Technology Research Institute/Center for Measurement Standards
Chinese Taipei
Contact person Wei Yih-cheng

+886 3 573 2106
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
CMS

ITRI Center for Measurement Standards, Chinese Taipei, APMP

MSL

Measurement Standards Laboratory, New Zealand, APMP

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NMC, A*STAR

National Metrology Centre, Agency for Science, Technology and Research, Singapore, APMP

NMIA

National Measurement Institute, Australia, Australia, APMP

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NPLI

CSIR National Physical Laboratory of India, India, APMP

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

SCL

Standards and Calibration Laboratory, Hong Kong, China, APMP

VMI-STAMEQ

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

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.

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.

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.

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.

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.

CCEM-K9, EUROMET.EM-K9 and APMP.EM-K9

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 1 kHz

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 = 1.8 µV/V, UR = 2.8 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 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 12 of the Final Report. They are not reported here.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 10 kHz

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 = -2.2 µV/V, UR = 2.8 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 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 13 of the Final Report. They are not reported here.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 20 kHz

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 = -5.8 µV/V, UR = 3.2 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 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 14 of the Final Report. They are not reported here.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 50 kHz

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 = -20.9 µV/V, UR = 4.2 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 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 15 of the Final Report. They are not reported here.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 100 kHz

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 = -59.9 µV/V, UR = 7.6 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 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 16 of the Final Report. They are not reported here.

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.

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.

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.

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.

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.

CCEM-K9, EUROMET.EM-K9 and APMP.EM-K9

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 1 kHz

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)
Ui : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)
Ui
/ (µV/V)
Date of measurement
 LNE* 3.4 13.2 Feb 2000
 BEV**

1.6

13.2

Apr 2000

 MIKES**

0.9

8.3

May 2000

 INETI**

5.6

26.1

Jun 2000

 AREPA* 4.6 21.1 Jul 2000
 NPL* 0.6 13.2 Aug 2000
 SP* 3.6 8.3 Sep 2000
 IEN* 1.0 9.7 Oct 2000
 CEM* -0.4 30.1 Nov 2000
 PTB* -0.5 8.0 Jan 2001
 NMi-VSL* 2.6 15.0 May 2001
 OMH**

-0.4

31.0

Oct 2001

 JV**

1.3

20.1

Mar 2002

 UME**

0.3

22.1

Apr 2002

 INTI -1.4 12.2 Jul 2000
 NMIA 4.2 9.2 Nov 2000
 NRC 2.6 9.0 Mar 2001
 VNIIM 2.3 16.7 May 2001
 METAS* 0.4 6.3 Aug 2001
 NIST 5.9 11.2 Jan 2002
 NIM 0.1 19.7 May 2002
 CMI**

3.6

38.1

Dec 2002

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

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 2 of the Final Report. They were taken between 2000 and 2004.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 10 kHz

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)
Ui : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)
Ui
/ (µV/V)
Date of measurement
 LNE* -2.5 21.1 Feb 2000
 BEV**

-0.3

15.1

Apr 2000

 MIKES**

-8.7

7.5

May 2000

 INETI**

-11.3

30.0

Jun 2000

 AREPA* 0.7 21.1 Jul 2000
 NPL* -7.3 13.1 Aug 2000
 SP* 0.7 9.1 Sep 2000
 IEN* -5.0 9.5 Oct 2000
 CEM* -3.3 30.0 Nov 2000
 PTB* -2.8 8.0 Jan 2001
 NMi-VSL* -4.3 15.0 May 2001
 OMH**

-5.3

36.0

Oct 2001

 JV**

-1.8

22.1

Mar 2002

 UME**

0.2

22.1

Apr 2002

 INTI -6.1 14.1 Jul 2000
 NMIA 0.9 9.1 Nov 2000
 NRC 0.9 8.7 Mar 2001
 VNIIM -2.2 17.1 May 2001
 METAS* -3.5 6.2 Aug 2001
 NIST 1.1 10.7 Jan 2002
 NIM -3.6 19.6 May 2002
 CMI**

-5.1

38.0

Dec 2002

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

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 2 of the Final Report. They were taken between 2000 and 2004.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 20 kHz

 Lab i xi
/ (µV/V)
Ui
/ (µV/V)
Date of measurement
 LNE* -6.0 21.1 Feb 2000
 BEV**

-2.2

19.1

Apr 2000

 MIKES**

-14.0

8.2

May 2000

 INETI**

-18.2

36.0

Jun 2000

 AREPA* -3.2 21.1 Jul 2000
 NPL* -12.2 17.1 Aug 2000
 SP* -4.2 10.2 Sep 2000
 IEN* -12.3 14.1 Oct 2000
 CEM* -4.2 30.1 Nov 2000
 PTB* -7.0 8.0 Jan 2001
 NMi-VSL* -9.2 20.0 May 2001
 OMH**

-7.1

40.0

Oct 2001

 JV**

-5.7

24.1

Mar 2002

 UME**

-3.7

26.1

Apr 2002

 INTI -9.1 16.1 Jul 2000
 NMIA -2.1 10.1 Nov 2000
 NRC -0.1 10.1 Mar 2001
 VNIIM -11.6 24.7 May 2001
 METAS* -6.9 6.2 Aug 2001
 NIST -2.0 11.3 Jan 2002
 NIM -6.3 21.3 May 2002
 CMI**

-8.1

46.0

Dec 2002

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

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 2 of the Final Report. They were taken between 2000 and 2004.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 50 kHz

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)
Ui : expanded uncertainty at a 95 % level of confidence of xi

 Lab i xi
/ (µV/V)
Ui
/ (µV/V)
Date of measurement
 LNE* -23.6 36.0 Feb 2000
 BEV**

-13.9

21.1

Apr 2000

 MIKES**

-43.0

13.1

May 2000

 INETI**

-37.9

46.0

Jun 2000

 AREPA* -19.9 21.1 Jul 2000
 NPL* -28.9 24.1 Aug 2000
 SP* -15.9 14.1 Sep 2000
 IEN* -33.1 20.3 Oct 2000
 CEM* -26.9 38.0 Nov 2000
 PTB* -22.5 10.0 Jan 2001
 NMi-VSL* -25.7 25.0 May 2001
 OMH**

-19.0

63.0

Oct 2001

 JV**

-19.1

34.0

Mar 2002

 UME**

-18.1

36.0

Apr 2002

 INTI -24.9 18.1 Jul 2000
 NMIA -13.9 15.1 Nov 2000
 NRC -12.9 10.7 Mar 2001
 VNIIM -41.0 40.6 May 2001
 METAS* -21.3 9.1 Aug 2001
 NIST -25.0 14.1 Jan 2002
 NIM -24.9 29.2 May 2002
 CMI**

-38.9

56.0

Dec 2002

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

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 2 of the Final Report. They were taken between 2000 and 2004.

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

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

MEASURAND : AC/DC voltage transfer difference
VOLTAGE : 500 V
FREQUENCY : 100 kHz

 Lab i xi
/ (µV/V)
Ui
/ (µV/V)
Date of measurement
 LNE* -61.6 36.1 Feb 2000
 BEV**

-40.9

31.1

Apr 2000

 MIKES**

-91.1

36.0

May 2000

 INETI**

-71.9

72.0

Jun 2000

 AREPA* -53.9 41.1 Jul 2000
 NPL* -68.9 46.1 Aug 2000
 SP* -48.9 21.1 Sep 2000
 IEN* -74.3 47.7 Oct 2000
 CEM* -55.9 50.0 Nov 2000
 PTB* -60.5 22.0 Jan 2001
 NMi-VSL* -63.8 40.0 May 2001
 OMH**

-61.1

100.0

Oct 2001

 JV**

-45.5

48.1

Mar 2002

 UME**

-49.9

56.1

Apr 2002

 INTI -63.0 30.1 Jul 2000
 NMIA -46.0 23.1 Nov 2000
 NRC -59.0 24.1 Mar 2001
 VNIIM -80.2 60.4 May 2001
 METAS* -56.0 26.1 Aug 2001
 NIST -67.0 17.9 Jan 2002
 NIM -81.5 39.7 May 2002
 CMI**

-73.0

80.0

Dec 2002

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

  • Key comparison APMP.EM-K9

Measurement results of the participants in key comparison APMP.EM-K9 are given in Table 2 of the Final Report. They were taken between 2000 and 2004.