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 thallium in the test solution at a wavelength of 276,8 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 thallium contents in the range of 0,3 g/t to 1,0 g/t in ferronickel.
Status: WithdrawnPublication date: 1993-11
Edition: 1Number of pages: 3
Technical Committee: ISO/TC 155 Nickel and nickel alloys
- ICS :
- 77.100 Ferroalloys
ISO 11438-6:1993Stage: 95.99
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