EN
Conforms with the requirements
for CE marking.
Attenuation
Frequency (Hz)
63
125
250
500
Mean attenuation (dB)
20.0
20.9
22.0
28.3
Standard deviation (dB)
4.4
3.4
2.5
2.9
Residual noise level (dB)
15.6
17.5
19.5
25.4
Frequency (Hz)
1000
2000
4000
8000
Mean attenuation (dB)
31.4
36.2
42.6
37.7
Standard deviation (dB)
2.0
2.5
3.6
4.6
Residual noise level (dB)
29.4
33.7
39.0
33.1
H=34, M=28, L=22, SNR=31
Содержание 003-146
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