ISO 7530-8:1992 Preview
Nickel alloys -- Flame atomic absorption spectrometric analysis -- Part 8: Determination of silicon content
This standard was last reviewed and confirmed* in 2015.
*Therefore this version remains current
Silicon content can be determined in the range of 0,2 % (m/m) to 1 % (m/m). The principle is dissolution of a test portion in acid, aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, measurement of the absorbance of the resonance line energy from the spectrum of silicon and comparison with that of calibration solutions at 251,6 nm.