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SRPS ISO 7530-7:1998

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

Apr 9, 1998
Apr 9, 1998

General information

90.93     Sep 8, 2025

90.20    Jul 15, 2030

ISS

C018

International Standard

77.120.40  

Serbian  

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Scope

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.

Life cycle

NOW

PUBLISHED
SRPS ISO 7530-7:1998
90.93 Standard confirmed
Sep 8, 2025

Related project

Adopted from ISO 7530-7:1992