GOST 6689.23-1980 Nickel and copper-nickel alloys. Method for atomic-absorption determination of magnesium, nickel, cobalt, lead, manganese, aluminium, iron chromium, zinc, copper and titanium
1980GOST 6689.23-1980 Nickel and copper-nickel alloys. Method for atomic-absorption determination of magnesium, nickel, cobalt, lead, manganese, aluminium, iron chromium, zinc, copper and titanium