ISO 4139:1979 Preview
Ferrosilicon -- Determination of aluminium content -- Flame atomic absorption spectrometric method
This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
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.
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