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ISO 7530-7:1992

Nickel alloys - Flame atomic absorption spectrometric analysis - Part 7: Determination of aluminium content
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ISO 7530-7:1992

Nickel alloys - Flame atomic absorption spectrometric analysis - Part 7: Determination of aluminium content

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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, filtration and aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, combustion of the filter, volatilization of silica, fusion of the residue, dissolution of the melt in dilute acid, aspiration of this second solution into another such flame, measurement of the absorbance of the resonance line energy from the spectrum of aluminium and comparison with that of calibration solutions at 309,3 nm.

SDO ISO: International Organization for Standardization
Document Number ISO 7530
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 155/SC 3
Publish Date Document Id Type View
Not Available ISO 7530-7:1992 Revision