Division D.1.2 Recovery calculations

If an extraction step is applied in the analytical method, the analytical result shall be corrected for recovery. In this case the level of recovery shall be reported.

In case no extraction step is applied in the analytical method, the result may be reported uncorrected for recovery if evidence is provided by ideally making use of suitable certified reference material that the certified concentration allowing for the measurement uncertainty is achieved (i.e. high accuracy of the measurement) and thus that the method is not biased. In case the result is reported uncorrected for recovery this shall be mentioned.