From: ATP bioluminescence assay for evaluating cleaning practices in operating theatres: applicability and limitations
ATP-bioluminescence assay
Expected values
Acceptable value
Alert value
≤ 63 RLU
64–75 RLU
> 75 RLU
Hospital A
72.7
10.9
16.4
Hospital B
77.4
6.0
16.7
Total
75.5
7.9
16.5