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).
Дата регистрации:
01.08.94
Дата введения:
01.06.94
Код КГС:
Л19
Код ОКСТУ:
2142
Код ОКС(МКС):
73.060.99
Код ОКП:
2142
Нормативные ссылки:
ISO 385-1-1984*ISO 648-1977*ISO 1042-1983*ISO 4787-1984*ISO 9599-1991*ISO Guide 35-1985
Ключевые слова:
CHEMICAL ANALYSIS AND TESTING CONCENTRATES COPPER COPPER INORGANIC COMPOUNDS COPPER ORES DETERMINATION OF CONTENT GRAVIMETRIC ANALYSIS SULPHIDES COPPER INORGANIC CO CHEMICAL ANALYSIS AND TESTIN