... killing effect to bacteria, virus, epiphyte, mildew and spore Povidone Iodine Appearance: Brown yellow or red brown molding powder, soluble ... : 9.5-11.5%Heavy Metals: 20 PPM maxAvailable Iodine: 9-12%Residue on burning: 0.1% maxIodine Ion ... choice of iodine containing antiseptic and healthy epidemic prevention disinfector of developed countries, Accord with USP26,USP28 and EP standard. Povidone Iodine