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ISO 7693:1984

Ferrotungsten — Determination of tungsten content — Cinchonine gravimetric method

Standard Details

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

Status : Published
Standard Type: Main
Document No: ISO 7693:1984
Document Year: 1984
Pages: 4
Edition: 1

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ISO 7693:1984
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