20
7 Octave Band Levels
Test bearing
Side Two
Side One
Side Three
Electric control box
Side Four
Test condition: Outdoor ambient temperature 35°C DB. EWT 12°C, LWT 7°C
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
31.5
63
125
250
500
1000
2000
4000
8000
Octave band sound level: dB(A)
Octave band central frequency (Hz)
00
NR-90
NR-80
NR-70
NR-60
NR-50
NR-40
NR-30
NR-20
NR-10
NR-0
