Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED 31 Fertilisers 31 02 MINERAL OR CHEMICAL FERTILIZERS, NITROGENOUS 31 02 80 Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution Commodity Code Description 31 02 80 00 Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution