GOST 9717.1-1982 Copper. Method of spectral analysis of metal standart specimens with photoelectrical registration of spectrum / Note: To be replaced by GOST 31382 (2009).*, 1982-04-19 Update
GOST 9717.2-1982 Copper. Method of spectral analysis of metal standart specimens with photographic registration of spectrum*, 1982-04-19 Update
GOST 9717.3-1982 Copper. Method of spectral analysis of oxide standart specimens*, 1982-04-19 Update