AATCC 100 Assessment of Antibacterial Finishes on Textile Materials Modified for Virucidal Efficacy

Purpose of Test

The modified AATCC 100 test method is a carrier-based test method used to evaluate the antiviral activity of treated finishes on textile materials. This method is generally used to substantiate antiviral properties of treated fabrics for non-public health related claims. Typical test organisms utilized in this method are blood borne pathogens (HIV, Hepatitis B virus and Hepatitis C virus), Norovirus surrogate, Rotavirus and additional pathogens of clinical, occupational or household relevance.

Summary of Test

In this method, treated test and untreated control samples are inoculated with a test virus. The test virus is allowed to expose to the test material at the requested exposure temperature for the requested exposure time. Following exposure, the samples are neutralized, serially diluted, and the dilutions are assayed for viral infectivity by an assay method specific for the test virus. Appropriate virus, test substance cytotoxicity, and neutralization controls are run concurrently. The percent and log reduction in viral infectivity are calculated as compared to the corresponding virus control. No regulated reduction limits currently exist for general antiviral claims made using this method.