Office and Commercial Zoning Regulations
TABLE 1 | |
|---|---|
Frequency Ranges Containing Standard Octave Bands in Cycles per Second | Octave Band Sound Pressure Level in Decibels re 0.0002 dyne/cm2 |
20—300 | 60 |
300—2400 | 40 |
Above 2,400 | 35 |
TABLE 2 | |
|---|---|
Type or Location of Operation or Character of Noise | Correction in Decibels |
Daytime operation only | 5 |
Noise source operated less than: | |
20% of any one-hour period or | 5 |
5% of any one-hour period | 10 |
Noise of impulsive character, hammering, etc. | -5 |
Noise of periodic character, hum, screech, etc. | -5 |
Office and Commercial Zoning Regulations
TABLE 1 | |
|---|---|
Frequency Ranges Containing Standard Octave Bands in Cycles per Second | Octave Band Sound Pressure Level in Decibels re 0.0002 dyne/cm2 |
20—300 | 60 |
300—2400 | 40 |
Above 2,400 | 35 |
TABLE 2 | |
|---|---|
Type or Location of Operation or Character of Noise | Correction in Decibels |
Daytime operation only | 5 |
Noise source operated less than: | |
20% of any one-hour period or | 5 |
5% of any one-hour period | 10 |
Noise of impulsive character, hammering, etc. | -5 |
Noise of periodic character, hum, screech, etc. | -5 |