2014GOST 13047.12-2014 Nickel. Cobalt. Methods for determination of antimony
2002GOST 13047.12-2002 Nickel. Cobalt. Methods for determination of antimony
1981GOST 13047.9-1981 Nickel. Method for the determination of antimony
0000 GOST 13047.9-1967
GOST 13047.9-1981 Nickel. Method for the determination of antimony was changed to GOST 13047.12-2002 Nickel. Cobalt. Methods for determination of antimony.