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The BIPM key comparison database
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METROLOGY AREA
Ionizing Radiation (145)
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Electricity and Magnetism (81)
Amount of Substance (81)
Photometry and Radiometry (39)
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Acoustics, Ultrasound, and Vibration (12)
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TYPE
Key comparisons (396)
Supplementary comparisons (111)
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Approved for equivalence (234)
Approved and published (67)
Ongoing, approved for equivalence (58)
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Result of the search
Your query 'France' produced 507 results New search
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  CCQM- K1.b Carbon dioxide (CO2) in Nitrogen (N2)
1993 - 1994
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCEM- K4 Comparison of capacitors
1996 - 1998
Comparison type, Field   Key comparison in Electricity and Magnetism, Capacitance
Capacitance, 10 pF
Parameter(s)   Frequency: 1592 Hz
Status   Approved for equivalence, Results available
  CCQM- K3 Automotive emission gases
1998 - 1999
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  BIPM.EM- K10.a DC voltage, Josephson standards
1991-
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 1.018 V
Status   Ongoing, approved for equivalence, Results available
  BIPM.EM- K10.b DC voltage, Josephson standards
1994 -
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 10 V
Status   Ongoing, approved for equivalence, Results available
  CCEM- K6.a Comparison of AC/DC voltage transfer standards
1993 - 1999
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Voltage: 3 V
Frequency: 1 kHz, 20 kHz, 100 kHz and 1 MHz
Status   Approved for equivalence, Results available
  CCEM- K2 Comparison of resistance standards
1996 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, Resistance
Resistance: 10 megaohms and 1 gigaohm
Parameter(s)   Voltage: 10 V, 50 V, 91 V or 100 V
Status   Approved for equivalence, Results available
  EUROMET.RI(II)- K2.Sc- 47 Activity of radionuclide Sc-47
1983
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Approved for equivalence, Results available
  EUROMET.RI(II)- K2.I- 123 Activity of radionuclide I-123
1983
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Approved for equivalence, Results available
  BIPM.L- K10 Comparison of the frequencies of Helium-Neon lasers at wavelength 633 nm
1988 - 2000
Comparison type, Field   Key comparison in Length, Laser Frequencies
Status   Approved for equivalence, Results available
  CCQM- K1.c Nitrogen monoxide (NO) in Nitrogen (N2)
1995 - 1996
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  EUROMET.EM- K10.1 Comparison of resistance standards
1998 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, Resistance
Resistance: 100 ohms
Status   Approved for provisional equivalence
  EUROMET.EM.BIPM- K11 DC voltage, Zener diode
1998 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
DC voltage: 10 V
Status   Approved for equivalence, Results available
  EUROMET.EM- S2 Comparison of high voltage impulse measuring systems
1998 - 1999
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Status   Published
  EUROMET.EM- S4 Comparison of capacitors
1995 - 1998
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, Capacitance
Capacitance: 100 pF
Parameter(s)   Frequency: 1 kHz or 1.592 kHz
Status   Published
  EUROMET.EM- S11 Comparison of the measurement of current transformers
1999 - 2000
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Frequency: 50 Hz
Status   Approved and published
  EUROMET.EM- S14 Measurement of divider ratios
1999 - 2000
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, DC Voltage and Current
Parameter(s)   DC voltage: 10 kV, 50 kV and 100 kV
Status   Approved and published
  EUROMET.EM.M- K1 Comparison of low frequency magnetic flux density
1998 - 2000
Comparison type, Field   Key comparison in Electricity and Magnetism, Magnetism
Parameter(s)   Frequency: DC to 20 kHz
Status   Approved for equivalence, Results available
  EUROMET.EM.RF- S3.CL Comparison of coaxial power measurements
1995
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 50 MHz to 18 GHz
Status   Published
  EUROMET.M.P- K1.a Pressure measurements in Nitrogen (absolute mode)
1999 - 2002
Comparison type, Field   Key comparison in Mass, Pressure
Pressure: 0.1 Pa to 1000 Pa
Status   Approved for equivalence, Results available