Performance Standards
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 2400 | 30 |
Type or Location of Operation or Character of Noise | Correction in Decibels |
Daytime operation only | 5 |
Noise source operates less than* 20% of any one-hour period 5% of any one-hour period | 5 10 |
Noise of impulsive character, hammering, etc. | -5 |
Noise of periodic character, hum, screech, etc. | -5 |
Property is located in any “C” or “M” District and is not within 500 feet measured horizontally or vertically of any “R” District | 5 (C-2) 10 (M-1) |
Performance Standards
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 2400 | 30 |
Type or Location of Operation or Character of Noise | Correction in Decibels |
Daytime operation only | 5 |
Noise source operates less than* 20% of any one-hour period 5% of any one-hour period | 5 10 |
Noise of impulsive character, hammering, etc. | -5 |
Noise of periodic character, hum, screech, etc. | -5 |
Property is located in any “C” or “M” District and is not within 500 feet measured horizontally or vertically of any “R” District | 5 (C-2) 10 (M-1) |