3102: Mineral or chemical fertilizers, nitrogenous

310210: Urea, including aqueous solution in packs >10 kg 310221: Ammonium sulphate, in packs >10 kg 310229: Ammonium sulphate-nitrate mix, double salts, pack>10k 310230: Ammonium nitrate, including solution, in pack >10 kg 310240: Ammonium nitrate limestone etc mixes, pack >10 kg 310250: Sodium nitrate, in packs >10 kg 310260: Calcium-ammonium nitrate mix, double salts pack >10kg 310270: Calcium cyanamide in packs >10 kg 310280: Urea-ammonium nitrate mixes in solution, pack >10 kg 310290: Nitrogenous fertilizers, mixes, nes, pack >10 kg 3102: Mineral or chemical fertilizers, nitrogenous