This Part of this European Standard specifies test methods for the determination of the overall migration intoaqueous based food simulants from plastics which are intended to come into contact with foodstuffs, by forming theplastics film or sheet into standard pouches and filling with a selected food simulant at test temperatures up to andincluding 70 C for selected test times.This method is most suitable for plastics in the form of films and sheets which are sealable by heat or pressure.The test is particularly applicable to those materials consisting of more than one layer, which are tested with thefood simulant in contact only with the surface which is intended to be in contact with the foodstuffs.A standard pouch is a pouch with the dimensions as described in 6.3.NOTEPouches of dimensions other than 10 cm 10 cm can be used for testing. These pouches should be preparedwhere possible so that the total surface area exposed is not less than 1 dm².