This standard applies to powdered artificial graphite of special purity, used as a basis for spectral analysis.
GOST 23463-1979 Referenced Document
GOST 10354-1982 Polyethylene film. Specifications*, 1982-04-19 Update
GOST 13637.1-1977 Gallium. Spectral method for the determination of aluminium, iron, bismuth, silicon, magnesium, manganese, copper, nickel, tin, lead and chromium