Purpose of Test This AATCC 90 test evaluates the ability of a textile to prevent growth of microorganisms. This estimates the antibacterial efficacy against various concentrations of microorganisms. This qualitative method determines the bacteriostatic activity on textiles that are treated with antimicrobials and are able to produce a zone of inhibition. This test has an… Continue reading AATCC 90 Antibacterial Activity: Agar Plate