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Spain, IO-CSIC (Instituto de Optica Daza de Valdés)
Complete CMCs in Photometry and Radiometry for Spain (.PDF file)
Colour, transmitted, x,y,Y. General material, x, y, 0 to 0.9
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.001
Spectrophotometer
Specific measurement conditions: regular transmission
Type of material: all types of materials (solids and liquids) excluding fluorescent
Approved on 30 September 2010
 
Colour, transmitted, Lab. General material, L, 0 to 100
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.02
Spectrophotometer
Specific measurement conditions: regular transmission
Type of material: all types of materials (solids and liquids) excluding fluorescent
 
Colour, transmitted, Lab. General material, a, -85 to 85
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.11
Spectrophotometer
Specific measurement conditions: regular transmission
Type of material: all types of materials (solids and liquids) excluding fluorescent
 
Colour, transmitted, Lab. General material, b, -85 to 85
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.06
Spectrophotometer
Specific measurement conditions: regular transmission
Type of material: all types of materials (solids and liquids) excluding fluorescent
 
Wavelength. Fibre optic source, 600 nm to 1650 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in pm: 3
Optical spectrum analyser
Approved on 18 April 2006
 
Wavelength. Optical spectrum analyser, wavemeter, 600 nm to 1650 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in pm: 3
Laser locking in gas transitions and master wavemeter
Approved on 18 April 2006
 
Wavelength. Optical spectrum analyser, 1513 nm to 1541 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in pm: 1
Molecular absorption cells
Approved on 18 April 2006
 
Chromatic dispersion. Optical fibre, -750 ps/(nm km) to 750 ps/(nm km)
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ps/(nm km-1): 0.016
Phase shift method
Wavelength: 1250 nm to 1650 nm, dispersion measured close to zero dispersion wavelength
Length: 1 km to 30 km
Single mode fibre
Approved on 18 April 2006
 
Zero dispersion wavelength. Optical fibre, 1250 nm to 1650 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: 0.07
Phase shift method
Wavelength: 1250 nm to 1650 nm
Length: 1 km to 30 km
Single mode fibre
Approved on 18 April 2006
 
Colour, surface, La*b*. Diffusely reflecting material, L*, 0 to 100
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.04
Spectrophotometer
Specific measurement conditions: diffuse reflectance
Type of material: all types of materials (solids and liquids) excluding fluorescent
Approved on 30 September 2010
 
Colour, surface, La*b*. Diffusely reflecting material, a*, -85 to 85
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.16
Spectrophotometer
Specific measurement conditions: diffuse reflectance
Type of material: all types of materials (solids and liquids) excluding fluorescent
Approved on 30 September 2010
 
Colour, surface, La*b*. Diffusely reflecting material, b*, -85 to 85
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.06
Spectrophotometer
Specific measurement conditions: diffuse reflectance
Type of material: all types of materials (solids and liquids) excluding fluorescent
Approved on 30 September 2010
 
Absorbance, regular, spectral. Spectrally-neutral material, 0 to 1
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.005
Spectrophotometer
Wavelegth range: 250 nm to 400 nm
Bandwidth: 1 nm to 20 nm
Specific measurement conditions: beam parallel to within 1.2° and angle of incidence of (0 ± 0.5)°
Approved on 20 April 2017
 
Absorbance, regular, spectral. Spectrally-neutral material, 1 to 2
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.015
Spectrophotometer
Wavelegth range: 250 nm to 400 nm
Bandwidth: 1 nm to 20 nm
Specific measurement conditions: beam parallel to within 1.2° and angle of incidence of (0 ± 0.5)°
Approved on 20 April 2017
 
Absorbance, regular, spectral. Spectrally-neutral material, 2 to 3
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.015
Spectrophotometer
Wavelegth range: 250 nm to 2500 nm
Bandwidth: 1 nm to 20 nm
Specific measurement conditions: beam parallel to within 1.2° and angle of incidence of (0 ± 0.5)°
Approved on 20 April 2017
 
Correlated colour temperature. Tungsten lamp, 2500 K to 3300 K
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K: 20
Spectroradiometer
 
Colour, surface, x, y, Y. Diffusely reflecting material. x, y, 0 to 0.9
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.001
Spectrophotometer
Specific measurement conditions: geometry 0/d (specular excluded and included)
Approved on 30 September 2010
 
Absorbance, regular, spectral. Spectrally-neutral material, 0 to 1
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.003
Spectrophotometer
Wavelegth range: 400 nm to 2500 nm
Bandwidth: 1 nm to 20 nm
Specific measurement conditions: beam parallel to within 1.2° and angle of incidence of (0 ± 0.5)°
Approved on 20 April 2017
 
Absorbance, regular, spectral. Spectrally-neutral material, 1 to 2
Absolute expanded uncertainty (k = 2, level of confidence 95%): 0.004
Spectrophotometer
Wavelegth range: 400 nm to 2500 nm
Bandwidth: 1 nm to 20 nm
Specific measurement conditions: beam parallel to within 1.2° and angle of incidence of (0 ± 0.5)°
Approved on 20 April 2017
 
Chromatic dispersion. Optical fibre, -750 ps/nm, ps/(nm km) to 750 ps/nm, ps/(nm km)
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.35
Phase shift method
Wavelength: 1250 nm to 1650 nm, dispersion measured away from zero dispersion wavelength
Single mode fibre
Approved on 18 April 2006