Test methods for surface disinfection: comparison of the Wiperator ASTM standard E2967-15 and the 4-field test EN 16615

Aim: Two test methods for surface disinfection (phase 2, step 2) – the Wiperator method (ASTM standard E2967-15) and the 4-field test (EN 16615) – were compared using a disinfectant solution based on quaternary ammonium compounds and a ready-to-use alcohol-based wipe. As test organisms, Staphylococc...

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Bibliographic Details
Published in:GMS hygiene and infection control 2020-04, Vol.15, p.Doc04-Doc04
Main Authors: Jacobshagen, Anja, Gemein, Stefanie, Exner, Martin, Gebel, Jürgen
Format: Article
Language:English
Subjects:
4-field test
disinfectant wipe
surface disinfection
wiperator
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Summary:Aim: Two test methods for surface disinfection (phase 2, step 2) – the Wiperator method (ASTM standard E2967-15) and the 4-field test (EN 16615) – were compared using a disinfectant solution based on quaternary ammonium compounds and a ready-to-use alcohol-based wipe. As test organisms, Staphylococcus aureus and Pseudomonas aeruginosa were used. Results: While the 4-field test is a manual method and better reflects the process in practice, with the Wiperator, the wiping process is better controlled because it is an automated procedure. A comparison of the effects of both methods on the target log 10 -reduction of S. aureus and P. aeruginosa indicates a statistically significant difference between the two test methods (Mann-Whitney U -Test. S. aureus : 0 (U min )
ISSN:2196-5226
2196-5226
DOI:10.3205/dgkh000339