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Wipe-rinse technique for quantitating microbial contamination on large surfacesThe evaluation of an improved wipe-rinse technique for the bioassay of large areas was undertaken due to inherent inadequacies in the cotton swab-rinse technique to which assay of spacecraft is currently restricted. Four types of contamination control cloths were initially tested. A polyester-bonded cloth (PBC) was selected for further evaluation because of its superior efficiency and handling characteristics. Results from comparative tests with PBC and cotton swabs on simulated spacecraft surfaces indicated a significantly higher recovery efficiency for the PBC than for the cotton (90.4 versus 75.2%). Of the sampling area sites studied, PBC was found to be most effective on surface areas not exceeding 0.74 sq m (8.0 sq ft).
Document ID
19800048665
Document Type
Reprint (Version printed in journal)
Authors
Kirschner, L. E. (Jet Propulsion Lab. Cape Canaveral, FL, United States)
Puleo, J. R. (California Institute of Technology, Jet Propulsion Laboratory, Planetary Protection Laboratory, Cape Canaveral Fla., United States)
Date Acquired
August 10, 2013
Publication Date
September 1, 1979
Publication Information
Publication: Applied and Environmental Microbiology
Volume: 38
Subject Category
MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other