2014GOST 13047.19-2014 Nickel. Cobalt. Method for determination of aluminium
2002GOST 13047.19-2002 Nickel. Cobalt. Method for determination of aluminium
1981GOST 13047.16-1981 Nickel. Methods for the determination of aluminium
0000 GOST 13047.16-1967
GOST 13047.16-1981 Nickel. Methods for the determination of aluminium was changed to GOST 13047.19-2002 Nickel. Cobalt. Method for determination of aluminium.