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Les langues disponibles
Laboratory Attenuation Tables
EN 352-1:2002 / EN 352-3:2002 / EN 352-4:2001+A1:2005 / EN 352-6:2002 / EN 352-8:2008
A
Headband with foam cushion
MT15H7AWS6**
(A:1)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB) 14.4 24.6 35.8 36.0 34.3 35.0 34.8
A:3 Standard deviation
(dB)
A:4 APV (dB)
Helmet attachment with foam cushion
MT15H7P3EWS6**
(A:1)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB) 18.7 25.4 33.0 38.0 34.3 34.4 34.3
A:3 Standard deviation
(dB)
A:4 APV (dB)
Headband with gel cushion
MT15H7AWS6**
(A:1)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB) 15.2 23.6 36.1 37.1 34.9 38.0 37.4
A:3 Standard deviation
(dB)
A:4 APV (dB)
Helmet attachment gel cushion
MT15H7P3*WS6**
(A:1)
A:1 Frequency (Hz)
A:2 Mean attenuation (dB) 18.0 23.1 32.1 37.6 35.1 35.1 36.7
A:3 Standard deviation
(dB)
A:4 APV (dB)
B
Headband with foam cushion
MT15H7AWS6**
Frequency (Hz)
(B:1)
Mean attenuation (dB)
(B:2)
Std deviation (dB)
(B:3)
Neckband with foam cushion
MT15H7BWS6**
Frequency (Hz)
(B:1)
Mean attenuation (dB)
(B:2)
Std deviation (dB)
(B:3)
Helmet attachment with foam cushion
MT15H7P3EWS6**
Frequency (Hz)
(B:1)
Mean attenuation (dB)
(B:2)
Std deviation (dB)
(B:3)
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
3.1
1.8
3.2
2.7
11.3 22.8 32.6 33.3 32.0 32.0 31.4
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
3.2
3.4
3.3
4.5
15.5 22.0 29.7 33.5 30.5 30.8 29.3
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
1.9
1.7
2.7
2.2
13.3 21.9 33.4 34.9 32.4 35.3 34.1
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
2.2
4.4
3.9
2.7
15.8 18.7 28.2 34.9 31.6 32.4 31.0
125
250
500
18.6
27.4
35.9
4.1
3.3
3.1
125
250
500
17.3
24.3
33.4
4.4
4.6
3.7
125
250
500
19.3
25.1
35.0
3.6
2.9
3.1
2.3
3.0
3.4
33
3.8
3.6
5.0
31
2.5
2.7
3.3
34
3.5
2.7
5.7
32
1000
2000
3150
38.9
35.8
37.7
2.9
2.9
3.0
1000
2000
3150
35.9
35.0
37.8
3.0
3.1
2.4
1000
2000
3150
38.7
34.5
35.3
2.1
2.5
2.1
EN 352-1:2002
(A6)
30
20
31
373 g
EN 352-3:2002
(A6)
30
23
31
395 g
EN 352-1:2002
(A6)
31
22
32
432 g
EN 352-3:2002
29
21
31
457 g
ANSI S3.19-1974
4000
6300
8000
37.0
36.4
38.0
2.4
3.8
5.0
ANSI S3.19-1974
4000
6300
8000
37.0
37.7
39.8
2.6
2,.6
3,9
ANSI S3.19-1974
4000
6300
8000
34.9
36.1
38.5
2.4
2.8
4.1
(A6)
CSA
NRR
Class
26
A
373 g
CSA
NRR
Class
24
A
357 g
CSA
NRR
Class
26
A
395 g
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