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Effects of germicides on spores deposited on silicone rubber medical tubing. Spores were loaded onto tubing, dried, and exposed for the times prescribed on the products’ labels either for sterilization or for disinfection (indicated on the X axis). Viable spores were measured in fractions a, b, and c as described in the text. Bar height represents mean survival, and the bracket over the bars indicates the SE of triplicate determinations in three to eight independent experiments.
