Chemical Chlorhexidene Formaldehyde and aldehydes Chlorine Chloramines Iodophors Sodium hydroxide Quaternary ammoniums Phenols Gram + Bacteria SA ++ Gram Bacteria SA ++ TB-like Bacteria SA ++ Fungi Virus Best pH for activity SA Most Wide range ++ ++ Wide range Activity in organic material Good Good Common uses * EPF EPF ++ ++ ++ ++ ++ ++ ++ + SA SA SA No ++ ++ ++ SA SA SA ++ SA Acid Acid Alkaline Alkaline Very poor Fair to poor Good Fair CE CE P CE ++ ++ + SA SA Acid +Good EPF SA = some activity E = equipment P = premises F = footbaths C = clean equipment (Adapted from Purdue University Extension Bulletin PIH80)
