3.2. Recovery rates of aluminum packaging
The average recovery rates for the aluminum scraps are shown
in Fig. 5a and the recovery rates for the metallic aluminum in these
scraps are shown in Fig. 5b. The percentages in Fig. 5 are relative to
the input weight of the aluminum packaging. The procedures used
in preparation of the waste samples and the recovery analysis have
proven effective since the standard deviations in the replicated
tests ranges between 1% and 4.2%, which are used as limits when
drawing conclusions.