Reference number
ISO 7693:1984
International Standard
ISO 7693:1984
Ferrotungsten — Determination of tungsten content — Cinchonine gravimetric method
Edition 1
1984-03
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ISO 7693:1984
14512
Published (Edition 1, 1984)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 7693:1984

ISO 7693:1984
14512
Language
Format
CHF 42
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Abstract

The method is applicable to ferrotungsten having tungsten contents between 70 and 90 % (m/m). Specifies principle, reagents, apparatus, sample, procedure, expression of results and test report. It also specifies, in the annex, a spectrometric method for the determination of molybdenum which interferes with the determination.

General information

  •  : Published
     : 1984-03
    : International Standard confirmed [90.93]
  •  : 1
     : 4
  • ISO/TC 132
    77.100 
  • RSS updates

Life cycle

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