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The BIPM key comparison database
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Result of the search
Your query 'Japan' produced 504 results New search
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  CCQM- K153 Specific adsorption of N2 or Kr on nonporous silicon dioxide
2017 - 2018
Comparison type, Field   Key comparison in Amount of Substance, Surface
Status   Approved for equivalence
  CCQM- K19.2018 Determination of the acidity functions at zero chloride molality of an unknown borate buffer
2019
Comparison type, Field   Key comparison in Amount of Substance, Electrochemistry
Parameter(s)   Harned cell measurements at 15 °C, 25 °C and 37 °C.
Status   Planned
  CCM.FF- K6.2017 Low pressure gas flow
2017 - 2019
Comparison type, Field   Key comparison in Mass, Fluid Flow
Status   In progress
  CCPR- K4.2017 Luminous flux
2017 - 2018
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Status   In progress
  CCRI(III)- K9.Cf- 252.2016 Emmission rate
2016 - 2019
Comparison type, Field   Key comparison in Ionizing Radiation, Section III (Neutron Measurements)
Status   In progress
  CCM.F- K23 Force mesaurements
2019 - 2020
Comparison type, Field   Key comparison in Mass, Force
Parameter(s)   Force in compression
Status   Planned
  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
  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
  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
  APMP.EM- K6.a Comparison of AC/DC voltage transfer standards
2000 - 2003
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
  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
  APMP.M.P- K6 Pressure measurements in gas (gauge mode)
1998 - 2001
Comparison type, Field   Key comparison in Mass, Pressure
Effective area of a piston-cylinder unit
Parameter(s)   Pressure: 20 kPa to 105 kPa
Status   Approved for equivalence, Results available
  APMP.M.P- K7 Pressure measurements in oil (gauge mode)
2002 - 2004
Comparison type, Field   Key comparison in Mass, Pressure
Pressure: 10 MPa to 100 MPa
Status   Approved for equivalence, Results available
  CCQM- K4 Ethanol in Air
1999
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K1.e Natural gas type I
1996 - 1997
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  CCQM- K6 Cholesterol in human serum
2000
Comparison type, Field   Key comparison in Amount of Substance, Organics
Status   Approved for equivalence, Results available
  CCQM- K8 Monoelemental calibration solutions of Al, Cu, Fe and Mg
1999 - 2000
Comparison type, Field   Key comparison in Amount of Substance, Inorganics
Status   Approved for equivalence, Results available
  CCQM- K9 pH measurement of phosphate buffer solutions
1999 - 2000
Comparison type, Field   Key comparison in Amount of Substance, Electrochemistry
Parameter(s)   15 °C, 25 °C and 37 °C plus 7 other temperatures
Status   Approved for equivalence, Results available