State system for ensuring the uniformity of measurements. Means of measuring spectral density of radiance, spectral density of radiant intensity and spectral density of irradiance in the wavelength range of 0,2-25,0 mkm. Verification procedure
State system for ensuring the uniformity of measurements. State verification schedule for means of measurement of illumination effective time of exposure and colour temperature in sensitometry
State system for ensuring the uniformity of measurements. Light-emitting diode (LED) lamps, luminaires and modules. Methods of photometric and colorimetric characteristics measurement
