INERGEN SYSTEM DISCHARGE TIME CHART
%
Time
%
Time
Concentration
(Seconds)
Concentration
(Seconds)
NOTE #1: Utilization of these discharge times is necessary to achieve 95% of the minimum design concentration within
one minute (34.2%). Discharge time must not exceed 138 seconds.
NOTE #2 : Discharge times less than or equal to those shown on this chart are acceptable.
NOTE #3 : For initial design concentrations other than 34.2%, the 90% discharge time to be inputted into the flow program
is 40 seconds.
34.2
40
34.5
43
35.0
48
35.5
55
36.0
61
36.5
64
37.0
67
37.5
70
38.0
74
38.5
77
39.0
80
39.5
83
40.0
87
40.5
90
41.0
94
41.5
97
42.0
100
42.5
104
43.0
108
43.5
111
44.0
114
44.5
118
45.0
121
45.5
124
46.0
127
46.5
130
47.0
133
47.5
136
48.0
138
48.5
138
49.0
138
49.5
138
50.0
138
50.5
138
51.0
138
51.5
138
52.0
138
52.5
138
53.0
138
53.5
138
54.0
138
54.5
138
55.0
138
55.5
138
56.0
138
56.5
138
57.0
138
57.5
138
58.0
138
58.5
138
59.0
138
59.5
138
60.0
138
60.5
138
61.0
138
61.5
138
62.0
138
SECTION V
UL EX-4510 7-15-02 Page 5-21
REV. 1
Discharge Time Chart (For Class A Fires)
