Ammonium persulphate Items Specifications Assay 98.5% min Active oxygen 6.91% min Residue after ignition (as so4)0.02% max Chloride and chlorate(as cl).001% max Heavy metals(as pb) 0.0005% max Iron(fe) 0.0005% max Manganese(mn) 0.00005% max Moisture 0.10% max (1) 25kg net weight pe bag with one liner(2) 25kg net weight pe bag (3) 25kg net weight woven bag with two pe liners