1996GOST 9853.23-1996 Sponge titanium. Spectral method for determination of silicon, iron, nickel
1979GOST 9853.6-1979 Sponge titanium. Spectral method for the determination of silicon, iron and nickel
0000 GOST 9853.7-1972
GOST 9853.6-1979 Sponge titanium. Spectral method for the determination of silicon, iron and nickel was changed to GOST 9853.23-1996 Sponge titanium. Spectral method for determination of silicon, iron, nickel.