1 Prezentul standard stabile?te metodele de determinare a con?inutului de taliu din minereuri ?i concentrate de cupru, plumb, zinc, molibden, pirita ?i sulfuri complexe ?i anume :
— metoda fotometric?;
— metoda spectrofotometric? de absorb?ie atomic?.
STAS 1269/25-1985 history
1985STAS 1269/25-1985 COOPER, LEAD, ZINC, BISMUTH, MOL YELENUM, PYRITE AND COMPLEX SULPHIDE ORES AND CONCENTRATES Determination of thallium content