... , no peculiar smell Physiochemical requirements ItemGrade IGrade II Moisture,%(m/m)≤14.0 Fineness,%(m/m)≥99.5≥99.0 Spot, spots /cm2≤1 ... (dry basis) %(m/m)≤0.50≤0.80 Fattiness (dry basis) % (m/m)≤0.15≤0.25 Sulfur dioxide,% (m/m)-------- Ferric salt (Fe) ,%(m/m) Edible corn ... basis) /% ≤0.350.450.6Spot spots/cm2 ≤0.40.71Fineness150μm (100 mesh) pass rate,% ≥99.59998.5Fattiness (dry basis) /% ≤0.10 ...