ZONES IP
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
0 - 75 | 72 |
75 - 150 | 67 |
150 - 300 | 59 |
300 - 600 | 52 |
600 - 1,200 | 46 |
1,200 - 2,400 | 40 |
2,400 - 4,800 | 34 |
Above 4,800 | 32 |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
0 - 75 | 80 |
75 - 150 | 75 |
150 - 300 | 70 |
300 - 600 | 64 |
600 - 1,200 | 58 |
1,200 - 2,400 | 53 |
2,400 - 4,800 | 49 |
Above 4,800 | 46 |
Character of Noise
|
Correction in Decibels
|
Occurs between 10:00 p.m. and 7:00 a.m. | Minus 10 |
Noise source operates less than a total of 30 minutes in any day | Plus 10 |
Noise of impulsive character, such as hammering | Minus 5 |
ZONES IP
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
0 - 75 | 72 |
75 - 150 | 67 |
150 - 300 | 59 |
300 - 600 | 52 |
600 - 1,200 | 46 |
1,200 - 2,400 | 40 |
2,400 - 4,800 | 34 |
Above 4,800 | 32 |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
Octave Band Cycles Per Second |
Maximum Permitted Sound Level in Decibels (.0002 Dynes/cm2 ) |
0 - 75 | 80 |
75 - 150 | 75 |
150 - 300 | 70 |
300 - 600 | 64 |
600 - 1,200 | 58 |
1,200 - 2,400 | 53 |
2,400 - 4,800 | 49 |
Above 4,800 | 46 |
Character of Noise
|
Correction in Decibels
|
Occurs between 10:00 p.m. and 7:00 a.m. | Minus 10 |
Noise source operates less than a total of 30 minutes in any day | Plus 10 |
Noise of impulsive character, such as hammering | Minus 5 |