1 Prezentul standard stabile?te metodele de determinare a con?inutului de nichel din minereuri ?i concentrate de cupru, plumb, zinc, bismut, molibden, pirit? ?i sulfuri complexe ?i anume :
— metoda fotometric?;
— metoda spectrofotometric? ?n absorb?ie a
STAS 1269/26-1985 history
1985STAS 1269/26-1985 COPPER, LEAD, ZINC, BISMUTH MOLYBDENUM, PYRITE AND COMPLEX SULPHIDE ORES AND CONCENTRATES Determination of nickel content