Sporicidal Effect of Peracetic Acid Vapor
Abstract
The activity of peracetic acid (PAA) vapor at 20, 40, 60, and 80% relative humidity (RH) and 25 C was determined against Bacillus substilis var. niger spores on paper and glass surfaces. Appreciable kill occurred within 10 minutes when the spores were exposed to 1 mg PAA per liter and the RH was 40% or higher. The rate of kill decreased with RH from the optimum at 80% RH to only a slight effect at 20% RH. Spores on an impermeable surface appear to be more difficult to kill than those on a porous one, probably because the cells tend to pile up on an impermeable surface and the vapor penetrates poorly through the layer of covering cells.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1968
- Accession Number
- AD0843598
Entities
People
- Dorothy M. Portner
- Robert K. Hoffman