AATCC Test Method 90-2011

Antibacterial Activity Assessment of Textile Materials: Agar Plate Method

Developed in 1958 by AATCC Committee RA31; Deactivated in 1989; Reactivated 2011

1.  Purpose and Scope

1.1  The objective is to qualitatively detect bacteriostatic activity on products that are treated with antimicrobials and are capable of producting a zone of inhibitation. Some test samples do not have a flat surface, therefore, this method provides the advantage of testing odd shaped and non-flat surfaces by partially embedding them into molden agar prior to solidification. This provides the intimate contact required between the test sample and the seeded agar.

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