On the one hand, it is appropriate to draw up, in respect of the goods to which the arrangements currently apply, set out in Table 1 of Annex B, the list of agricultural products for which price differences between the world market and the Community market can be offset on importation, and, on the other hand, it must be possible to identify among those agricultural products the basic products for which such differences are actually recorded, the quantities of other agricultural products, assimilated products or products resulting from their processing being converted into equivalent quantities of basic products.