Division III.3.9

The ratio of marker to total residues describes the relationship between the marker residue and total residues in each relevant food commodity. This ratio may be different in different food commodities and, as it may vary over time, it shall be established until the time corresponding to that at which residues of concern are expected to be below the ADI. The ratio of marker to total residues shall be used in the intake calculation to calculate potential consumer exposure to total residues from data relating to the marker residue.