Section 06 Products of the chemical or allied industries 31 Fertilisers 31 02 Mineral or chemical fertilisers,nitrogenous 31 02 60 Double salts and mixtures of calcium nitrate and ammonium nitrate 31 02 60 00 Double salts and mixtures of calcium nitrate and ammonium nitrate Commodity Code Description 31 02 60 00 000 Double salts and mixtures of calcium nitrate and ammonium nitrate