... Treatment Aluminium Sulphate 2.Ferric and non-ferric 15.8% ; 16%; 17% 3.ISO Certificated 4.HS Code:2833220000 Product name : aluminium sulphate ... ---5mm Non-ferric Level ITEMSTANDARDAl2O3,%≥16Fe, %≤0.005Ph value,≥3.0As, %≤0.0005Pb, %≤0.002Water Insolubles, %≤0.15Grain size,≤15mm Aluminium Sulphate ...