Link: https://www.iso.org/standard/71292.html
Purpose and Goals
- Evaluate and compare the antiviral activity of multiple textiles in laboratory-controlled testing.
Testing
- This testing will be a modification of ISO 18184. Textile swatches will be inoculated with a liquid viral suspension, incubated at room temperature and ambient relative humidity for a specified contact time, and then recovered into a solution which will be dilution-plated in cell cultures to provide quantifiable viable viral burden data for each swatch tested.
- Testing will include the viral strains:
- Influenza A virus (H1N1) ATCC VR-1469
- Human Coronavirus strain OC43 ATCC VR-1558 (a betacoronavirus like SARS-CoV-2)
- Feline calicivirus (FCV) strain F-9 ATCC VR-782 (a surrogate for human norovirus)
- Testing will include 72 total data points:
- 4 materials (3 test textiles and 1 provided/in-house negative control)
- Note: Please provide at least 5 grams of each material per time-point.
- 6 time-points (0, 1 hour, 2 hours, 4 hours, 12 hours, and 24 hours)
- 3 replicate swatches at each test condition
- 4 materials (3 test textiles and 1 provided/in-house negative control)
- Note: Optional GLP services are available for an additional 25% fee.
Data Analysis
- In-house control results will be used to verify test validity.
- Data will be calculated to determine the quantifiable viral burden in plaque- or foci-forming units per disc (PFU/disc or FFU/disc) remaining on each test location.
- Data will be analyzed to determine the consistency between replicate swatches.
- Data will be analyzed to determine the percent reductions and log reductions of viral burdens on each/the test material compared to the provided negative control at each test condition.
Typical Turn Around Time
- (per strain) 6-8 weeks following receipt of the test materials