2014GOST 13047.12-2014 Nickel. Cobalt. Methods for determination of antimony
2002GOST 13047.12-2002 Nickel. Cobalt. Methods for determination of antimony
1980GOST 741.16-1980 Cobalt. Method for the determination of antimony
0000 GOST 741.16-1969
GOST 741.16-1980 Cobalt. Method for the determination of antimony was changed to GOST 13047.12-2002 Nickel. Cobalt. Methods for determination of antimony.