Prezentul standard stabile?te metodele de determinare a umidit??ii minereurilor ?i concentratelor de eupiu, plumb, zinc, bismut, molibden, pirit? ?i sulfuri complexe ?i anume :
— metoda gravimetric?;
— metoda distil?rii cu xilen.
?n caz de litigiu se a
STAS 1269/28-1989 history
1989STAS 1269/28-1989 COPPER, LEAD ZINC, BISMUTH, MOLYBDENUM, PYHITE AND COMPLEX SULPHIDE ORES AND CONCENTRATES Moisture determination