90.93 Standard confirmed Jul 25, 2022
ISO
ISO/TC 17/SC 1 Methods of determination of chemical composition
International Standard
77.080.20 Steels
The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids and dilution of the solution to a known volume, introducing a known volume of the solution into an electrothermal atomizer of an atomic absorption spectrometer, measuring the atomic absorption of the 217,6 nm spectral resonance line energy emitted by an antimony lamp. The method is applicable to antimony contents between 0,0005 % (m/m) and 0,010 % (m/m).
PUBLISHED
ISO 10698:1994
90.93
Standard confirmed
Jul 25, 2022