1 Prezentul standard stabile?te metodele de determinare a con?inutului de cobalt din minereuri ?i concentrate de cupru, plumb, zinc, bismut, molibden, pirit? ?i sulfuri complexe ?i anume :
— metoda] fotometric?;
— metoda spectrofotometric? ?n absorb?ie
STAS 1269/23-1985 history
1985STAS 1269/23-1985 COPPER, LEAD, ZINC, BISMUTH, MOLYBDENUM, PYRITE AND COMPLEX SULPHIDE ORES AND CONCENTRATES Determination of cobalt content