TABLE 1.

Inactivation of cells and spores by air drying on chemfilm-treated Al 6061 coupons

SpeciesCells or sporesNo. of cells or sporesa per coupon:Survival (N/N0)
Before air drying (N0)After air drying (N)
E. coli K-12Cells6.48 × 1074.00 × 1060.06
P. fluorescens pTOLCells3.08 × 107<4 × 101b<1.3 × 10−6
A. radioresistens 50v1Cells3.16 × 1081.47 × 1070.04
B. subtilis 168Cells1.24 × 1073.20 × 1022.58 × 10−5
Spores2.00 × 1072.05 × 1071.03
B. pumilus Cells5.00 × 1074.10 × 1048.2 × 10−4
    SAFR-032Spores2.00 × 1072.26 × 1071.13
  • a Average of two determinations.

  • b Lower limit of detection of viability assay: 40 CFU/ml.