This International Standard specifies a method of storing potatoes, root vegetables and round-headed cabbages in silos using forced ventilation. The method is applicable to potatoes and vegetables (root vegetables, round-headed cabbages) intended for different purposes : for human consumption, for seeds and for fodder. It provides for the use of a system of ventilation using outside air for regulation of the storage conditions of the products. The method is particularly efficient in regions having moderate climates, where the average temperature during harvest is from 0 to °C, or lower during the night.