Effective against both gram positive and gram negative organisms. Recommended for cleaning and sanitising floors, walls, surfaces, catering equipment, machines etc. This product conforms to EN 13697 (4Earth Anti Bacterial Cleaner has been tested at a 17% dilution to EN 13697 (test organisms Psuedomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Enterococcus hirae, Listeria monocytogenes and Salmonella typhimurium).