ISO 7693:1984 (R2022)
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ISO 7693:1984 (R2022)

Ferrotungsten — Determination of tungsten content — Cinchonine gravimetric method

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 03/01/1984
Confirmation Date 03/25/2022
Edition 1
Page Count 4
EAN ---
ISBN ---
Weight (in grams) ---
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