scope:

This European Standard specifies a method for the detection of irradiated foods using photostimulated lumines-cence (PSL). The technique described here comprises an initial measurement of PSL intensity which may be used for screening purposes, and a calibration method to determine the PSL sensitivity to assist classification. It is nec-essary to confirm a positive screening result using calibrated PSL or another standardised (e.g. EN 1784 to EN 1788) or validated method. The method has been successfully tested in interlaboratory trials using shellfish [1] and herbs, spices and season-ings. From other studies it may be concluded that the method is applicable to a large variety of foods.