Industrial-process measurement, control and automation. Evaluation of system properties for the purpose of system assessment. Part 3. Assessment of system functionality
State system for ensuring the uniformity of measurements. State verification schedule for measuring means of spectral, integral and reduced regular transmittance and optical density within the wavelength range from 0,2 to 50,0 um, diffused and regular reflections within the wavelength range from 0,2 to 20,0 um
