State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring radiant flux 1x10 in minus 6 degree to 1x10 in minus 2 degree W in the wavelength range of 0,4 - 1,4 um
Steel and iron. Determination of nickel, copper and cobalt contents. Inductively coupled plasma atomic emission spectrometric method. Part 3. Determination of copper content