Q.T. Plus has been formulated to aid in the reduction of cross-contamination between treated hard, non-porous surfaces not only in hospitals, but in schools, institutions, and industry. Effective in hard water up to 200 ppm hardness (calculated as CaCO3) in the presence of 5% serum contamination. Q.T. Plus is a one-step Hospital use disinfectant, Bactericidal tested according to the current AOAC Use-Dilution Test Method and Virucidal* tested according to the virucidal qualification modified in the presence of 200 ppm hard water plus 5% organic serum. 1 MINUTE CONTACT TIME: *SARS-Related Coronavirus 2 (SARS-CoV-2) (cause of COVID-19).