ISO 4139:1979
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ISO 4139:1979
9898

Status : Published (Under review)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
en
Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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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.

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General information

  •  : Published
     : 1979-05
    : International Standard confirmed [90.93]
  •  : 1
     : 3
  • ISO/TC 132
    77.100 
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Life cycle

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