Reference number
ISO 4139:1979
© ISO 2024
International Standard
ISO 4139:1979
Ferrosilicon — Determination of aluminium content — Flame atomic absorption spectrometric method
Edition 1
1979-05
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Published (Edition 1, 1979)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 4139:1979

Language
Format
CHF 42
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 1979-05
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 132
    ICS :
    77.100 
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