Secondary cells and batteries containing alkaline or other non-acid electrolytes. Safety requirements for portable sealed secondary cells, and batteries made from them, f
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
