Prezentul standard stabile?te metoda volumetric? de determinare a con?inutului de fier total din minereuri ?i concentrate de p?m?nturi rare con?inut ce variaz? intre 0 1 % si 5%, ?n func?ie de z?c?m?nt
STAS SR 13155-9-1997 history
1997STAS SR 13155-9-1997 Ores: and rare earths concentrates Method for determination of total iron content