AATCC 147 Antibacterial Activity Assessment of Textile Materials: Parallel Streak Method

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AATCC 147 Document Information:

Title
Antibacterial Activity Assessment of Textile Materials: Parallel Streak Method

The American Association of Textile Chemists and Colorists

Publication Date:
Jan 1, 1998

Scope:

Purpose and Scope

The objective is to detect bacteriostatic activity on textile materials. The results of using this procedure have been demonstrated by Committee RA31 to be reproducible by various laboratories working with materials containing residual amounts of antibacterial agents (as determined by chemical assay) after multiple standard washings. The method is useful for obtaining a rough estimate of activity in that the growth of the inoculum organism decreases from one end of each streak to the other and from one streak to the next resulting in increasing degrees of sensitivity. The size of the zone of inhibition and the narrowing of the streaks caused by the presence of the antibacterial agent permit an estimate of the residual antibacterial activity after multiple washings.

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