UNI 3349 : 1953
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
PROCEDURES FOR THE CHEMICAL ANALYSIS OF METALS - DETERMINATION OF THE SILICON CONTENT OF FERROMANGANESE AND OF MANGANESE METAL - GRAVIMETRIC METHOD
11-07-2019
01-01-1953
Il silicio viene separato dalla soluzione nitrosolforica della ferrolega o del manganese metallo mediante evaporazione a fumi bianchi ed infine volatilizzato con acido fluoridrico in presenza di acido solforico. Reattivo: miscela nitrosolforica. Procedimento. Calcolo.
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