Table 3.

Calculated concentration of surrogate contaminants in PET (Cmod) corresponding to a modelled migration of 0.15 μg/kg food after 1 year at 25°C, decontamination efficiencies from the challenge test, residual concentration (Cres) of surrogate contaminants in recycled PET (rPET). As an example, the calculations correspond to the minimum residence time provided in the challenge test

Surrogates	Decontamination efficiency (%)	Cres for 35% rPET (mg/kg PET)	Cmod (mg/kg PET)
Toluene	95.4	0.049	0.125
Chlorobenzene	95.4	0.049	0.147
Chloroform	96.5	0.036	0.154
Methyl salicylate	83.1	0.178	0.197
Phenylcyclohexane	90.8	0.097	0.205
Benzophenone	85.0	0.157	0.240
Methyl stearate	90.6	0.098	0.470

PET: poly(ethylene terephthalate).