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Overview ISO 4940:1985 specifies a validated flame atomic absorption spectrometric (AAS) method for the determination of nickel (Ni) in steel and cast iron. The standard covers sample dissolution, re…
Overview ISO 4940:2025 specifies a flame atomic absorption spectrometric (FAAS) method for the determination of nickel content in steel and cast iron. The method covers nickel mass fractions from 0.0…