ISO 4139:1979

Ferrosilicon — Determination of aluminium content — Flame atomic absorption spectrometric method

Publication date: May 1, 1979

General information

Current stage: 90.93 Effective date: Mar 25, 2022

Originator: ISO

Owner: ISO/TC 132

Type: International Standard

ICS: 77.100

Languages: French English

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Status: Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 4139:1979
90.93 Standard confirmed
Mar 25, 2022

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