Objavljen
The method is applicable to ferrosilicon having an aluminium content between 0,05 and 5 % (m/m). Specifies principle, reagents, apparatus, sample, procedure, expression of results and test report. Warns of perchloric acid fumes.
OBJAVLJEN
ISO 4139:1979
90.93
Odluka o potvrđivanju standarda
25. 3. 2022.