ISO 9647:1989 Preview
Steel and iron -- Determination of vanadium content -- Flame atomic absorption spectrometric method
This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
The method is applicable to vandadium contents between 0,005 % (m/m) and 1,0 % (m/m), provided that the tungsten content in the test portion is not higher than 10 mg and/or the titanium content is not higher than 5 mg. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. The annexes give additional information on the international co-operative tests, a graphical representation of precision data and procedures for the determination of instrumental criteria.
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