DS EN 27627-3:1994 Hard Metals - Chemical Analysis By Flame Atomic Absorption Spectrometry - Part 3: Determination Of Cobalt, Iron, Manganese And Nickel In Contents From 0,01 To 0,5% (M/M) Defines the method to be used for the determination of cobalt, iron, manganese and nickel contents of hard metals within the range 0,01 to 0,5% (m/m) by flame atomic absorption spectrometry.