Octave Band Frequency
(cycles per second)
|
Residence District Boundaries
|
Business District Boundaries
| |
---|---|---|---|
0 to 75
|
72
|
79
| |
75 to 150
|
67
|
74
| |
150 to 300
|
59
|
66
| |
300 to 600
|
52
|
59
| |
600 to 1,200
|
46
|
53
| |
1,200 to 2,400
|
40
|
47
| |
2,400 to 4,800
|
34
|
41
| |
Over 4,800
|
32
|
39
|
Frequency
(cycles per second)
|
Maximum Permitted Displacement Along Residence
District Boundaries
(inches)
| |
---|---|---|
0 to 10
|
0.0008
| |
10 to 20
|
0.0005
| |
20 to 30
|
0.0002
| |
30 to 40
|
0.0002
| |
40 and over
|
0.0001
|
Allowance for Height of Emission*
| ||
---|---|---|
Height of Emission
Above Grade
(feet)
|
Correction
(pounds per hour per acre)
| |
50
|
0.01
| |
100
|
0.06
| |
150
|
0.10
| |
200
|
0.16
| |
300
|
0.30
| |
400
|
0.50
|
*Interpolate for intermediate values not shown
in table.
|
Total Capacity of Flammable Materials
Permitted in Gallons
| ||||
---|---|---|---|---|
Above Ground
|
Under Ground
| |||
Industries engaged in storage and distribution
| ||||
Materials having a closed-cup flash point over
187° F.
|
Prohibited
|
100,000
| ||
From and including 105° F. to and including
187° F.
|
Prohibited
|
40,000
| ||
Less than 105° F.
|
Prohibited
|
20,000
| ||
Industries engaged in utilization of flammable
materials
| ||||
Materials having a closed-cup flash point over
187° F.
|
50,000
|
100,000
| ||
From and including 105° F. to and including
187° F.
|
20,000
|
40,000
| ||
Less than 105° F.
|
5,000
|
10,000
|
*When flammable gases are stored and utilized
and measured in cubic feet, the quantity in cubic feet (at STP) permitted
shall not exceed 300 times the quantities as listed above.
|