Comparison
Comparison close
Results

BIPM.EM-K11.b, EUROMET.EM.BIPM-K11, APMP.EM.BIPM-K11.1, EUROMET.EM.BIPM-K11.5, EUROMET.EM.BIPM-K11.6, SIM.EM.BIPM-K11.b, COOMET.EM.BIPM-K11, APMP.EM.BIPM-K11.4APMP.EM.BIPM-K11.3APMP.EM.BIPM-K11.5 and GULFMET.EM.BIPM-K11

 

MEASURAND             DC voltage, Zener diode

NOMINAL VALUE    10 V

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV.

 

 

This is the possibility to place a comment.

Comparison
Comparison close
Results

BIPM.EM-K11.b, EUROMET.EM.BIPM-K11, APMP.EM.BIPM-K11.1, EUROMET.EM.BIPM-K11.5, EUROMET.EM.BIPM-K11.6, SIM.EM.BIPM-K11.b, COOMET.EM.BIPM-K11, APMP.EM.BIPM-K11.4APMP.EM.BIPM-K11.3APMP.EM.BIPM-K11.5 and GULFMET.EM.BIPM-K11

 

MEASURAND             DC voltage, Zener diode

NOMINAL VALUE    10 V

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µV.

 

 

(a) Only the most recent result is retained.

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.EM-K11.b
Metrology area, Sub-field Electricity and Magnetism, DC Voltage and Current
Description DC voltage, Zener diode
Time of measurements 1992 -
Status Continuous, approved for equivalence
Final Reports of the comparisons
References

BIPM.EM-K11 Technical Protocol

Measurand DC voltage: 10 V
Transfer device Zener diode-based electronic standards
Comparison type Key Comparison
Consultative Committee CCEM (Consultative Committee for Electricity and Magnetism)
Conducted by BIPM (Bureau International des Poids et Mesures)
Comments Last BIPM.EM-K11.b update: 25 November 2020
Results obtained at 10 V by
EUROMET.EM.BIPM-K11 - published on 30 April 2003
APMP.EM.BIPM-K11.1 - published on 07 December 2005
EUROMET.EM.BIPM-K11.5 - published on 07 February 2007
EUROMET.EM.BIPM-K11.6 - published on 04 June 2007
SIM.EM.BIPM-K11.b - published on 24 August 2007
COOMET.EM.BIPM-K11 - published on 26 July 2012
APMP.EM.BIPM-K11.4 - published on 05 September 2013
APMP.EM.BIPM-K11.3 - published on 23 August 2017
APMP.EM.BIPM-K11.5 - published on 12 July 2019
GULFMET.EM.BIPM-K11
are linked to BIPM.EM-K11.b.
Pilot institute BIPM
Bureau International des Poids et Mesures
BIPM - International Organization
Contact person S. Solve
ssolve@bipm.org
+33 (0) 1 45 07 70 26
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
BIPM

Bureau International des Poids et Mesures, BIPM - International Organization, N/A

BEV

Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

BIM

Bulgarian Institute of Metrology, Bulgaria, EURAMET

CMI

Czech Metrology Institute, Czechia, EURAMET

CSIR-NML

Council for Scientific and Industrial Research, National Metrology Laboratory (became NMISA in 2007), South Africa, AFRIMETS

DEF-NAT

Laboratoire de Métrologie de la Direction Générale des Transmissions et de l'Informatique, Tunisia, AFRIMETS

DMDM

Directorate of Measures and Precious Metals, Serbia, EURAMET

GUM

Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET

INETI

Instituto Nacional de Engenharia e Tecnologia Industrial (merged into IPQ), Portugal, EURAMET

INM

National Institute of Metrology, Romania, EURAMET

INTI

Instituto Nacional de Tecnologia Industrial, Argentina, SIM

JV

Justervesenet, Norway, EURAMET

KEBS

Kenya Bureau of Standards, Kenya, AFRIMETS

KRISS

Korea Research Institute of Standards and Science, Korea, Republic of, APMP

METAS

Federal Institute of Metrology, Switzerland, EURAMET

NCM

National Centre of Metrology, now BIM (Bulgarian Institute of Metrology), Bulgaria, EURAMET

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NIS

National Institute for Standards, Egypt, AFRIMETS

NIST

National Institute of Standards and Technology, United States, SIM

NMIA

National Measurement Institute, Australia, Australia, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NML(IE)

National Metrology Laboratory of Ireland; now NSAI National Metrology Laboratory, NSAI NML, Ireland, EURAMET

NSAI NML

NSAI National Metrology Laboratory, Ireland, EURAMET

SMD

Service de la Métrologie Belge, Belgium, EURAMET

SMU

Slovensky Metrologicky Ustav, Slovakia, EURAMET

SPRING Singapore

Singapore Standards, Productivity and Innovation Board (became NMC, A*STAR in 2008), Singapore, APMP

VNIIM

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

Comparison
Comparison close
Results

BIPM.EM-K11.b, EUROMET.EM.BIPM-K11, APMP.EM.BIPM-K11.1, EUROMET.EM.BIPM-K11.5, EUROMET.EM.BIPM-K11.6, SIM.EM.BIPM-K11.b, COOMET.EM.BIPM-K11, APMP.EM.BIPM-K11.4APMP.EM.BIPM-K11.3APMP.EM.BIPM-K11.5 and GULFMET.EM.BIPM-K11

 

MEASURAND               DC voltage, Zener diode

NOMINAL VALUE       10 V

 

The key comparison reference value is the BIPM value, xR. Its standard uncertainty uR is evaluated to be 0.1 µV and is included in the ui values.

The degree of equivalence of laboratory i with respect to the key comparison reference value xR is given by a pair of terms: Di = (xI - xR) and its expanded uncertainty Ui = 2ui  at a 95 % level of confidence, both expressed in µV.

 

Linking EUROMET.EM.BIPM-K11 to BIPM.EM-K11.b

The linking of EUROMET.EM.BIPM-K11 to BIPM.EM-K11.a is made via BIPM, having participated in both comparisons.

 

Linking APMP.EM.BIPM-K11.1 to BIPM.EM-K11.b

The linking of APMP.EM.BIPM-K11.1 to BIPM.EM-K11.a is made via NMIA (Australia), having participated in both comparisons.

 

Linking EUROMET.EM.BIPM-K11.5 to BIPM.EM-K11.b

The linking of EUROMET.EM.BIPM-K11.5 to BIPM.EM-K11.a is made via DFM (Denmark), having participated in both comparisons.

 

Linking EUROMET.EM.BIPM-K11.6 to BIPM.EM-K11.b

The linking of EUROMET.EM.BIPM-K11.6 to BIPM.EM-K11.a is made via BEV (Austria)  and UME (Turkey), having participated in both comparisons.

 

Linking SIM.EM.BIPM-K11.b to BIPM.EM-K11.b

The linking of SIM.EM.BIPM-K11.b to BIPM.EM-K11.a is made via NIST (United States), having participated in both comparisons.

 

Linking COOMET.EM.BIPM-K11 to BIPM.EM-K11.b

The linking of COOMET.EM.BIPM-K11 to BIPM.EM-K11.a is made via VNIIM (Russia), having participated in both comparisons.

 

Linking APMP.EM.BIPM-K11.4 to BIPM.EM-K11.b

The linking of APMP.EM.BIPM-K11.4 to BIPM.EM-K11.a is made via KRISS (Korea), having participated in both comparisons.

 

Linking APMP.EM.BIPM-K11.3 to BIPM.EM-K11.a

The linking of APMP.EM.BIPM-K11.3 to BIPM.EM-K11.a is made via NIM (China), KRISS (Korea) and the BIPM, having participated in both comparisons.

 

Linking APMP.EM.BIPM-K11.5 to BIPM.EM-K11.a

The linking of APMP.EM.BIPM-K11.5 to BIPM.EM-K11.a is made via KRISS (Korea), having participated in both comparisons.

 

Linking GULFMET.EM.BIPM-K11 to BIPM.EM-K11.a

The linking of GULFMET.EM.BIPM-K11 to BIPM.EM-K11.a is made via KRISS (Korea) and BIPM, having participated in both comparisons.

Comparison
Comparison close
Results

BIPM.EM-K11.b, EUROMET.EM.BIPM-K11, APMP.EM.BIPM-K11.1, EUROMET.EM.BIPM-K11.5, EUROMET.EM.BIPM-K11.6, SIM.EM.BIPM-K11.b, COOMET.EM.BIPM-K11, APMP.EM.BIPM-K11.4APMP.EM.BIPM-K11.3APMP.EM.BIPM-K11.5 and GULFMET.EM.BIPM-K11

 

MEASURAND               DC voltage, Zener diode

NOMINAL VALUE       10 V

 

BIPM.EM-K11.b

xi   measured mass fraction reported by laboratory iLabi

ui   combined standard uncertainty of xi