Identification of cfu found on materials by contact plate and total immersion
| G+ coc | G− coc | G+ rod | G+ rod sp | G− rod | Mould | Yeast | All cfu | ||
| Contact plate | Before disinfection | 31 | 0 | 11 | 19 | 1 | 3 | 0 | 65 |
| After one-step TT | 0 | 0 | 6 | 3 | 2 | 0 | 0 | 11 | |
| After two-step TT | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | |
| Total immersion | Before disinfection | 50 | 0 | 1 | 135 | 0 | 1 | 9 | 196 |
| After one-step TT | 0 | 0 | 0 | 28 | 1 | 0 | 0 | 29 | |
| After two-step TT | 2 | 0 | 1 | 2 | 1 | 0 | 0 | 6 | |
G+ coc, Gram-positive coccus; G− coc, Gram-negative coccus; G+ rod, Gram-positive rod; G+ rod sp, Gram-positive rod spore forming; G− rod, Gram-negative rod.