When a confirmatory quantification analysis is requested:  − Two (2) new  Aliquots  taken from the original “A” Sample shall be analyzed once (x1) to: o quantify intact IGF -I and P -III-NP; and  o identify IGF -I (as per the TD IDCR 14); − At least one QC Sample (see Article 5.3), depending on initial quantification results, shall be included in each confirmatory quantification analytical batch;  − The CV (%) between the duplicat e determinations of the IGF- I or P -III-NP concentrations shall not be higher (≤) than the associated uc_Max (see Table 1) .