Home    Key and supplementary comparisons    Calibration and Measurement Capabilities - CMCs
The BIPM key comparison database
Refine your search
METROLOGY AREA
Ionizing Radiation (109)
Mass (100)
Electricity and Magnetism (47)
Length (35)
Thermometry (34)
Photometry and Radiometry (31)
Acoustics, Ultrasound, and Vibration (20)
Amount of Substance (15)
Time and Frequency (1)
TYPE
Key comparisons (309)
Supplementary comparisons (83)
STATUS
Approved for equivalence (169)
Approved and published (55)
Ongoing, approved for equivalence (37)
Approved for provisional equivalence (35)
In progress (29)
Planned (16)
Report in progress, Draft A (15)
Protocol complete (13)
Published (6)
Abandoned (6)
Report in progress, Draft B (5)
Measurements completed (5)
Ongoing (1)
ORGANISATIONS
CCQM
APMP (155)
CCM (58)
CCRI (49)
BIPM (38)
CCEM (20)
CCPR (18)
CCT (15)
CCAUV (13)
CCL (11)
EURAMET (formerly EUROMET) (10)
COOMET (3)
SIM (1)
CCTF (1)
Result of the search
Your query 'Japan' produced 392 results New search
1  2  3 [Next >>]

  CCPR- K5.2019 Spectral diffuse reflectance
2019 - 2020
Comparison type, Field   Key comparison in Photometry and Radiometry, Properties of materials
Parameter(s)   A parallel beam with a spectral bandwidth of 5 nm centred on the wavelengths of 360 nm, 380 nm, 400 nm, 420 nm, 440 nm, 480 nm, 530 nm, 580 nm, 630 nm, 680 nm, 730 nm, 780 nm, and 830 nm is used.
Status   Protocol complete
  CCM.FF- K6.2017 Low pressure gas flow
2017 - 2019
Comparison type, Field   Key comparison in Mass, Fluid Flow
Status   In progress
  CCPR- K1.a.2017 Spectral irradiance
2017 - 2018
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength range: 250 nm to 2500 nm
Status   Protocol complete
  CCPR- K4.2017 Luminous flux
2017 - 2018
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Status   In progress
  CCAUV.A- K6 Primary pressure calibration of laboratory standard microphones LS2P
2019 - 2020
Comparison type, Field   Key comparison in Acoustics, Ultrasound, and Vibration, Acoustics
Status   Protocol complete
  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
  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
  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
  APMP.QM- K3 Automotive emission gases: CO, CO2 and C3H8 in N2
2000
Comparison type, Field   Key comparison in Amount of Substance, Gases
Status   Approved for equivalence, Results available
  APMP.QM- K4 Ethanol in air
2000
Comparison type, Field   Key comparison in Amount of Substance, Gases
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   Ongoing, approved for equivalence, Results available
  CCL- K1 Gauge blocks by interferometry
1998 - 1999
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Steel and tungsten carbide materials
Status   Approved for equivalence, Results available
  CCL- K3 Angle standards
2000 - 2002
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Status   Approved for equivalence, Results available
  CCL- K5 One-dimensional coordinate measuring machine artefacts
1999 - 2002
Comparison type, Field   Key comparison in Length, Dimensional Metrology
Step gauge and ball bars
Status   Approved for equivalence, Results available
  CCL- S1 Nanometrology: one-dimensional gratings
1999 - 2000
Comparison type, Field   Supplementary comparison in Length, Dimensional Metrology
Pitch of gratings: 290 nm and 700 nm
Status   Approved and published, Results available