[The determination of the bacterial effectiveness of surface disinfectants using suspension tests].
The results of the testing of 38 preparations intended for surface disinfection are compared in order to evaluate the value of the suspension tests. The studied testing methods are: the in vitro test (IVT) with the disinfectant diluted in distilled water (AD), in standard hard water (WSH) and in 0.2% albumin; the European Suspension Test (EST) under clean and under dirty conditions; the French AFNOR test NF T 72-190; the practical test of the German Society for Hygiene and Microbiology (DGHM); and the Quantitative Surface Disinfection Test (QSDT). The suspension tests yield comparable results (Table 1). These results correlate very well with these of the AFNOR test, to a lesser extent with those of the DGHM test and hardly with the results of the QSDT, which is the most real-life mimicking practical test (Table 2). Suspension tests are not able to exclude only inactive preparations from further testing in practical tests: they are not specific (Tables 3 and 4). Therefore, it is necessary to include practical tests in the testing schedule for the evaluation of the bactericidal activity of surface disinfectants.
Reybrouck
G
G
Laboratorium für Hygiene, Katholieke Universiteit Leuven, Belgium.
D001419:Bacteria / Q000187:drug effects*; D004202:Disinfectants / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests
D004202:Disinfectants
Die Bestimmung der bakteriziden Wirksamkeit von Flächendesinfektionsmitteln mittels Suspensionsversuchen.