Measurement set KNF-1-01 is designed for use as the working standard of the spectral, integral and reduced regular transmittance, spectral and integral optical density and wavelength to verify (calibrate) a photometrical or wavelength scale of photometers and spectrophotometers. Measurement set KNF-1-01 contains the following light filters: - light filter set KNF-1-M; (light filters №№1-7 - standard kit, light filter №8 - on customer's request) - light filter set KNF-1M-15; - light filter set KNF-1F-01; - interference light filters set "F". Integral transmittance is defined for illuminant A in accordance with State Standard Specifications 7721-89 and the curve of relative spectral light efficiency of monochromatic radiation for photopic vision in accordance with State Standard Specification 8.332-78. Operating conditions: - Ambient temperature 10-35 0С; - Relative air humidity 65±15%. |