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ISO 7693:1984

Ferrotungsten — Determination of tungsten content — Cinchonine gravimetric method
1. 3. 1984.

Опште информације

90.93     25. 3. 2022.

ISO

ISO/TC 132

Međunarodni standard

77.100  

francuski   engleski  

Kupovina

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Apstrakt

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.

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TRENUTNO

OBJAVLJEN
ISO 7693:1984
90.93 Odluka o potvrđivanju standarda
25. 3. 2022.