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The BIPM key comparison database
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METROLOGY AREA
Amount of Substance (63)
Mass (59)
Electricity and Magnetism (49)
Length (21)
Thermometry (19)
Acoustics, Ultrasound, and Vibration (12)
Photometry and Radiometry (12)
Ionizing Radiation (10)
Time and Frequency (1)
TYPE
Key comparisons (174)
Supplementary comparisons (72)
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Approved for equivalence (119)
Approved (40)
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Report in progress, draft B (9)
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ORGANISATIONS
EURAMET (formerly EUROMET) (111)
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Result of the search
Your query 'Turkey' produced 246 results New search
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  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
  CCEM.M- K1 Comparison of low frequency magnetic flux density
2001 -2003
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.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- 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   Approved
  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
  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
  EUROMET.M.P- K1.b Pressure measurements in Nitrogen (absolute mode)
2000 - 2002
Comparison type, Field   Key comparison in Mass, Pressure
Pressure: 0.3 mPa to 0.9 Pa
Status   Approved for equivalence, Results available
  EUROMET.M.P- K4 Pressure measurements in oil (gauge mode)
1996 -1999
Comparison type, Field   Key comparison in Mass, Pressure
Effective area of a piston-cylinder unit
Parameter(s)   Pressure: 10 MPa to 100 MPa
Status   Approved for equivalence, Results available
  EUROMET.EM- K11 AC/DC voltage transfer difference at low voltages
2005 - 2008
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Voltage: 10 mV and 100 mV
Frequency: 1 kHz, 20 kHz, 100 kHz, and 1 MHz
Status   Approved for equivalence, Results available
  BIPM.RI(II)- K1.Co- 60 Activity of radionuclide Co-60
1975 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Continuous, approved for equivalence, Results available
  EUROMET.L- K1.1 Gauge blocks by interferometry
2002 - 2003
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available
  EUROMET.L- K2 Long gauge blocks from 150 mm to 900 mm
2002 - 2005
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available
  EUROMET.L- K4.PREV Cylindrical diameter standards
1996 - 1998
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for provisional equivalence
  EURAMET.L- S12 Calibration of gauge blocks by mechanical comparison
2001 - 2002
Comparison type, Field   Supplementary comparison in Length, Dimensional Metrology
Status   Approved
  BIPM.RI(II)- K1.Cs- 137 Activity of radionuclide Cs-137
1976 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Continuous, approved for equivalence, Results available
  BIPM.RI(II)- K1.Eu- 152 Activity of radionuclide Eu-152
1981 -
Comparison type, Field   Key comparison in Ionizing Radiation, Section II (Measurement of Radionuclides)
Status   Continuous, approved for equivalence, Results available
  CCM.F- K15 Medium force measurements
Comparison type, Field   Key comparison in Mass, Force
Force: 0.2 kN to 100 kN
Status   Approved for provisional equivalence
  CCM.V- K1.B2 Viscosity measurements of standard liquids
2002
Comparison type, Field   Key comparison in Mass, Viscosity
Standard liquid B2, kinematic viscosity: 400 mm2/s
Parameter(s)   Temperature: 40 °C
Status   Approved for equivalence, Results available
  COOMET.AUV.A- K1 Comparison of laboratory standard microphone calibrations
2002 - 2003
Comparison type, Field   Key comparison in Acoustics, Ultrasound, and Vibration, Acoustics
Parameter(s)   Frequency: 63 Hz to 10 kHz
Status   Approved for equivalence, Results available
  EUROMET.M.M- K2 Comparison of mass standards
2002 - 2003
Comparison type, Field   Key comparison in Mass, Mass Standards
Mass: 100 mg, 2 g, 20 g, 500 g and 10 kg
Status   Approved for equivalence, Results available