ISO 11438-2:1993
International Standard
Historical
·
Approved on
25 November 1993
Ferronickel — Determination of trace-element content by electrothermal atomic absorption spectrometric method — Part 2: Determination of lead content
ISO 11438-2:1993 Files
English
3 Pages
Historical
31.02 OMR
ISO 11438-2:1993 Scope
The principle of the method specified is dissolution of a test portion in nitric acid, measurement of the absorption of the resonance line energy from the spectrum of lead in the test solution at a wavelength of 283,3 nm by an atomic absorption spectrometer fitted with a graphite furnace electrothermal atomizer, calibration by the standard additions method described in ISO 11438-1. Applies to lead contents in the range of 1,0 g/t to 5,0 g/t in ferronickel.
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