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Normas BSI – AENOR
BS EN 14935:2006

BS EN 14935:2006

Copper and copper alloys. Determination of impurities in pure copper. ETA-AAS method

Fecha:
2006-08-31 /Confirmed
Comité:
NFE/34
Equivalencias internacionales:

EN 14935:2006

Resumen:
This European Standard specifies two different electrothermal atomization atomic absorption spectrometric meth-ods (ET AAS) for the determination of silver, arsenic, bismuth, cadmium, cobalt, chromium, iron, manganese, nickel, lead, antimony, selenium, tin, tellurium and zinc in copper (greater than 99,85 %) in the form of unwrought, wrought and cast products. The standard specifies two methods depending on range of impurity concentrations, see Table 1. Method B (method of additions) is applicable to products containing impurity elements at concentrations below 1,0 ?g/g. This method uses special ET AAS equipment fitted with background correction by means of the Zeemann effect.
Keywords:
Copper, Copper alloys, Non-ferrous metals, Determination of content, Chemical analysis and testing, Atomic absorption spectrophotometry, Impurities
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