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This Part of this European Standard specifies test methods for the determination of the overall migration into fattyfood simulants, from one surface only of plastics in the form of sheet and film at temperatures above 20 C and upto, but not including, 100 C for selected times.This method is most suitable for plastics in the form of films and sheets, but is particularly applicable to thosematerials consisting of more than one layer or surfaces that differ in their migration characteristics, which have tobe tested with food simulant in contact with the surface which is intended to come into contact with foodstuffs.NOTEThis test method has been written for use with the fatty food simulant, olive oil. The test method can also be usedwith appropriate modifications with 'other fatty food simulants ' called simulant D - a synthetic mixture of triglycerides, sunfloweroil and corn oil. These other fatty food simulants will produce different chromatograms for the simulant methyl esters to those ofthe methyl esters of olive oil. Select suitable chromatogram peaks of the methyl esters of the other fatty food simulants for thequantitative determination of the simulant extracted from the test specimens.The test method described is applicable to most types of plastics, although there are some plastics for which it isknown not to be applicable.