ISO 4940:1985 Preview
Steel and cast iron -- Determination of nickel content -- Flame atomic absorption spectrometric method
This standard was last reviewed and confirmed in 2018. Therefore this version remains current.
The method is applicable to nickel contents between 0.002 % (m/m) and 0.5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests, and Annex B represents the precision data graphically.
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