Report No. 3098477-002a
July 31, 2006
Page 1 of 4
Report No. 3098477-002a
July 31, 2006
Page 2 of 4
Airflow Rate in % of Test Airflow Rate 75%
100%
100
125% 0.400
90
0.350
Resistance, Pa
80 0.300
70 60
0.250
50
0.200
40
0.150
30 0.100
20
0.050
10
0.000
0
700
Resistance, in. Water
50%
1050
Airflow Rate, cfm
1400
1750
Graph 1: Resistance of Clean Device vs. Airflow
Air Velocity Airflow Rate in % of Test m/s Airflow Rate 1.25 50% 1.87 75% 2.50 100% 3.12 125% Table 1: Resistance of Clean Device vs. Airflow
fpm 246.0 369.0 492.0 615.0
Airflow Rate m3/s cfm 700 0.33 1050 0.50 1400 0.66 1750 0.83
Resistance Pa 19 38 61 94
in H2O 0.076 0.151 0.246 0.379
Report No. 3098477-002a
July 31, 2006
Page 3 of 4
Particle Size Removal Efficiency, %
100.0
99.0 Initial 1st Loading
98.0
2nd Loading 3rd Loading
97.0
4th Loading 5th Loading
96.0
95.0
94.0 0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
3.46
4.69
6.20
8.37
Geometric Mean Particle Size, mm Graph 2: PSE After Incremental Dust Loading
Range Number
1
2
3
4
5
6
7
8
9
10
11
12
Size Range, Âľm
0.300.40
0.400.55
0.550.70
0.701.00
1.001.30
1.301.60
1.602.20
2.203.00
3.004.00
4.005.50
5.507.00
7.0010.00
Geometric Mean Particle Size, Âľm
0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
3.46
4.69
6.20
8.37
96.3 96.7 97.7 96.6 96.7 96.2 96.2
Initial 1st Loading 2nd Loading 3rd Loading 4th Loading 5th Loading Composite Minimum
97.6 97.6 98.0 97.4 97.0 96.6 96.6
98.3 98.1 98.1 97.5 97.2 97.0 97.0
98.7 98.5 98.3 97.8 97.3 97.2 97.2
98.9 98.8 98.4 97.9 97.6 97.4 97.4
99.1 98.9 98.4 98.2 97.9 97.5 97.5
99.2 99.1 98.7 98.4 97.9 97.8 97.8
99.3 99.1 98.8 98.5 98.0 98.2 98.0
99.4 99.3 98.9 98.5 98.4 98.3 98.3
99.3 99.4 99.0 98.8 98.4 98.8 98.4
99.5 99.5 98.7 99.4 98.6 98.7 98.6
Table 2: Particle Size Efficiency
Particle Size Removal Efficiency, %
100.0 99.0 98.0 97.0
Composite Min
96.0 95.0 94.0 0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
Geometric Mean Particle Size, mm Graph 3: Composite Minimum Efficiency Curve
3.46
4.69
6.20
8.37
99.5 99.9 98.8 99.0 99.1 98.6 98.6
Report No. 3098477-002a
July 31, 2006
Page 4 of 4
Report No. 3098477-001a
July 31, 2006
Page 1 of 4
Report No. 3098477-001a
July 31, 2006
Page 2 of 4
Airflow Rate in % of Test Airflow Rate 50%
75%
100%
125%
80 0.300 0.250
60 50
0.200
40
0.150
30 0.100 20 0.050
10
0.000
0
1000
Resistance, in. Water
Resistance, Pa
70
1500
Airflow Rate, cfm
2000
2500
Graph 1: Resistance of Clean Device vs. Airflow
Air Velocity Airflow Rate in % of Test m/s Airflow Rate 1.25 50% 1.87 75% 2.50 100% 3.12 125% Table 1: Resistance of Clean Device vs. Airflow
fpm 246.0 369.0 492.0 615.0
Airflow Rate m3/s 0.47 0.71 0.94 1.18
cfm 1000 1500 2000 2500
Resistance Pa 18 33 54 78
in H2O 0.073 0.134 0.215 0.313
Report No. 3098477-001a
July 31, 2006
Page 3 of 4
100.0
Particle Size Removal Efficiency, %
99.0 98.0
Initial 1st Loading
97.0
2nd Loading 3rd Loading
96.0
4th Loading 5th Loading
95.0 94.0 93.0 92.0 0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
3.46
4.69
6.20
8.37
Geometric Mean Particle Size, mm Graph 2: PSE After Incremental Dust Loading
Size Range, Âľm
1 0.300.40
2 0.400.55
3 0.550.70
4 0.701.00
5 1.001.30
6 1.301.60
7 1.602.20
8 2.203.00
9 3.004.00
10 4.005.50
11 5.507.00
12 7.0010.00
Geometric Mean Particle Size, Âľm
0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
3.46
4.69
6.20
8.37
Range Number
95.0 94.9 96.8 96.8 96.3 95.2 94.9
Initial 1st Loading 2nd Loading 3rd Loading 4th Loading 5th Loading Composite Minimum
96.5 96.2 97.4 97.1 96.5 95.9 95.9
97.3 97.0 97.7 97.2 96.6 96.3 96.3
97.9 97.6 97.9 97.5 97.1 96.6 96.6
98.3 98.1 98.2 97.8 97.4 96.8 96.8
98.5 98.4 98.3 97.8 97.5 97.2 97.2
98.7 98.7 98.4 98.2 97.7 97.5 97.5
98.8 98.9 98.5 98.4 97.8 97.7 97.7
98.8 99.0 98.9 98.7 98.5 98.0 98.0
98.8 99.1 99.1 99.0 98.7 98.5 98.5
99.0 99.0 99.1 98.8 99.4 98.1 98.1
Table 2: Particle Size Efficiency
100.0
Particle Size Removal Efficiency, %
99.0 98.0 97.0 96.0
Composite Min.
95.0 94.0 93.0 92.0 0.35
0.47
0.62
0.84
1.14
1.44
1.88
2.57
Geometric Mean Particle Size, mm Graph 3: Composite Minimum Efficiency Curve
3.46
4.69
6.20
8.37
99.7 99.5 99.5 98.8 98.7 99.9 98.7
Report No. 3098477-001a
July 31, 2006
Page 4 of 4