The most accurate way to report an irradiation dose is as a dose range, e.g. 15-18 kGy (1.5-1.8 Mrad), which should indicate both the minimum and maximum dose exposure throughout the irradiated container. In order to minimize any negative material impact, it is important that both low doses and tightly controlled dose ranges be employed. It is very difficult to interpret any study that does not include a dose range. Again, if only a single dose is given, it should be considered the minimum exposure.