Gallium. Chemical-atomic-emission method for the determination of aluminium, bismuth, cobalt, silicon, magnesium, manganese, copper, nickel, lead, silver, chromium, zinc and iron
State system for ensuring the uniformity of measurements. State verification schedule for means of measuring spectral density of radiance, spectral density of radiant intensity, spectral density of irradiance, radiant intensity and irradiance in the wavelength range of 0,2...25,0 µm
