95.99 Withdrawal of Standard Jun 28, 2006
ISO
ISO/TC 183 Copper, lead, zinc and nickel ores and concentrates
International Standard
73.060.99 Other metalliferous minerals
The principle of the method specified is decomposing a test portion in nitric and sulfuric acids, separating copper from interfering elements (silver, arsenic, antimony, selenium, tin, iron, bismuth, and tellurium), determining traces of copper in the electrolyte, the filtrate, all precipitates and residues by flame atomic absorption spectrometry (FAAS), dissolving and analysing copper deposits for coprecipitated elements, mainly silver, by FAAS or plasma atomic emission spectrometry. The method is applicable for copper contents of copper sulfide concentrates in the range 15 % (m/m) to 50 % (m/m).
WITHDRAWN
ISO 10469:1994
95.99
Withdrawal of Standard
Jun 28, 2006
PUBLISHED
ISO 10469:2006