Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 31 FERTILIZERS 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