DS EN 15916-2:2010 Copper And Copper Alloys - Determination Of Tellurium Content - Part 2: Medium Tellurium Content - Flame Atomic Absorption Spectrometric Method (Faas) Defines a flame atomic absorption spectrometric method (FAAS) for the determination of the tellurium content of copper and copper alloys in form of castings or unwrought or wrought products.