Photometry and Radiometry Standards

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Calibrated Device 
(1) Standard Color Plate, Filter
(2) Reflectance Standard
Range
(1) Reflectance Y:(1 ~ 100) %
     Chromaticity x,y:0 ~ 1
     Transmittance:(1 ~ 100) %
(2) Reflectance Y:(1 ~ 100) %
     Wavelength:250 nm ~ 2500 nm 
Uncertainty
(1) White standard reflectance Y:0.38 % ~ 0.54 %
     Chromaticity x,y:0.0002
     Color plate reflectance Y:0.17 % ~ 0.22 %
     Chromaticity x:0.0005 ~ 0.0046,y:0.0009 ~ 0.0048
     Transmittance:0.07 % ~ 0.25 %
(2) Reflectance Y:0.10 %
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