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ISO 7693:1984

Current Revision

Ferrotungsten - Determination of tungsten content - Cinchonine gravimetric method

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 7693
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 132
Publish Date Document Id Type View
Not Available ISO 7693:1984 Revision