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The BIPM key comparison database
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METROLOGY AREA
Photometry and Radiometry (18)
TYPE
Key comparisons (17)
Supplementary comparisons (1)
STATUS
Approved for equivalence (8)
Approved for provisional equivalence (3)
In progress (3)
Protocol complete (3)
Approved and published (1)
ORGANISATIONS
CCPR (18)
Result of the search
Your query 'Japan' produced 18 results New search

  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
  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
  CCPR- K1.PREV(1991) Spectral irradiance
1987 - 1991
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength: 250 nm to 2400 nm
Status   Approved for provisional equivalence
  CCPR- K2.c Spectral responsivity
2004 - 2007
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 200 nm to 400 nm
Status   Approved for equivalence, Results available
  CCPR- K4 Luminous flux
1997 - 1998
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Status   Approved for equivalence, Results available
  CCPR- K5 Spectral diffuse reflectance
2001 - 2003
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Parameter(s)   Wavelength from 360 nm to 830 nm
Status   Approved for equivalence, Results available
  CCPR- S3 Comparison of cryogenic radiometers
1996 - 1999
Comparison type, Field   Supplementary comparison in Photometry and Radiometry, Radiometry
Status   Approved and published, Results available
  CCPR- K1.a Spectral irradiance
2001 - 2003
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 250 nm to 2500 nm
Status   Approved for equivalence, Results available
  CCPR- K2.PREV(1992) Spectral responsivity
1990 - 1992
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 1300 nm and 1500 nm
Status   Approved for provisional equivalence
  CCPR- K2.PREV(1994) Spectral responsivity
1993 - 1994
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 250 nm to 1000 nm
Status   Approved for provisional equivalence
  CCPR- K3.a Luminous intensity
1997 - 1998
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Status   Approved for equivalence, Results available
  CCPR- K2.b Spectral responsivity
2000 - 2001
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 300 nm to 1000 nm (18 values)
Status   Approved for equivalence, Results available
  CCPR- K6 Spectral regular transmittance
2000 - 2001
Comparison type, Field   Key comparison in Photometry and Radiometry, Properties of materials
Parameter(s)   Wavelength from 380 nm to 1000 nm
Status   Approved for equivalence, Results available
  CCPR- K3.2014 Luminous intensity
2014
Comparison type, Field   Key comparison in Photometry and Radiometry, Photometry
Parameter(s)   Lamp geometric alignment parameters
Lamp DC electrical current and voltage
Correlated colour temperature
Status   Protocol complete
  CCPR- K6.2010 Spectral regular transmittance
2013 - 2014
Comparison type, Field   Key comparison in Photometry and Radiometry, Properties of materials
Parameter(s)   Wavelength from 380 nm to 1000 nm
Status   Approved for equivalence, Results available
  CCPR- K2.b.2016 Spectral responsitivity
2016 to 2017
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Status   In progress
  CCPR- K2.a.2016 Spectral responsivity
2017 - 2019
Comparison type, Field   Key comparison in Photometry and Radiometry, Radiometry
Parameter(s)   Wavelength from 900 nm to 1600 nm
Status   In progress