Table 1: control data ( testing with lamp off ) – Field Controls CC 2000 User Manual
Page 6
Page 6
Table 1: Control Data (testing with lamp off)
Sample
Number
Air Sampling
Duration (min)
Airflow
Velocity
fpm
Serratia marcescens
Positive hole count
Corrected Particle
Counts
CFU/FT
3
of air
(count/min)
1
1
500
181
241
2
1
500
193
263
3
1
500
208
294
4
0.5
500
117
138
5
0.5
500
118
140
Total min. = 4
Total Corrected
Particle counts
= 1076
269.00
1
2
1000
168
218
2
2
1000
167
216
3
2
1000
169
220
4
1
1000
91
103
5
1
1000
92
103
Total min. = 8
Total Corrected
Particle counts
= 860
107.50
Table 2: UV-18 Test data and results (testing with lamp on)
Sample
Number
Air
Sampling
Duration
(min)
Airflow
Velocity
(fpm)
Serratia
marcescens
Positive hole
count
Corrected
Particle
Counts
CFU/FT
3
of air
(count/min)
%Survival
CFU/Control
Log
Reduction
%
Effective
1
1
1000
30
31
2
1
1000
32
33
3
3
1000
88
99
4
6
1000
145
180
Total min = 11
Total
Corrected
Particle Counts
= 343
31.18
29.01
0.54
70.99
Control:
107.50
1
1
500
13
13
2
1
500
19
19
3
3
500
57
61
4
6
500
92
105
Total min = 11
Total
Corrected
Particle Counts
= 198
18.00
6.69
1.17
93.31
Control:
269.00