ISO 7693:1984
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
Language:
English
ICS Codes:
77.100
Status:
Published
Publish date:
1984-02-29
Standard Number:
ISO 7693:1984