Disclosed is a composition comprising: about 7.5% hydrogen peroxide by weight, about 6.4 % of a quaternary ammonium compound by weight, about 0.3 % amine oxide by weight； about 0.225% phosphoric acid by weight； and water, wherein the quaternary ammonium compound comprises n-alkyl dimethyl benzyl ammonium chloride, n-octyl decyl dimethyl ammonium chloride, di-n-octyl dimethyl ammonium chloride, and di-n-decyl dimethyl ammonium chloride. These compositions are dilutable biocidal composition, when diluted, they provide a microbial contact kill time of less than 5 minutes for at least one biocidal target selected from bacterium selected from the group consisting of Campylobacter jejuni, Pseudomonas aeruginosa, Salmonella enterica, Staphylococcus aureus, Streptococcus pyogenes, and Clostridium difficile, or a virus, or a combination thereof.
