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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
Art nr: MT73H7A4310WS6EU, MT73H7A4410WS6EU, MT73H7A4310EU, MT73H7A4410EU
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB) 2.4
A:4 APV (dB)
Neckband with foam cushion
Art nr: MT73H7B4310WS6EU, MT73H7B4410WS6EU, MT73H7B4310EU, MT73H7B4410EU
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
Helmet attachment with foam cushion
Art nr: MT73H7P3E4310WS6EU, MT73H7P3E4410WS6EU, MT73H7P3E4310EU, MT73H7P3E4410EU
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
Headband with gel cushion
Art nr: MT73H7A4310WS6EU, MT73H7A4410WS6EU, MT73H7A4410EU, MT73H7A4310EU
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
Neckband with gel cushion
Art nr: MT73H7B4310WS6EU, MT73H7B4410WS6EU, MT73H7B4310EU, MT73H7B4410EU
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 APV (dB)
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
17.1 25.6 34.5 34.5 36.6 39.6 38.3
1.2
3.0
2.8
14.7 24.4 31.5 31.7 34.5 36.6 35.2
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
14.9 24.0 32.7 32.5 36.2 40.4 39.1
2.5
2.0
3.2
2.8
12.4 22.0 29.5 29.7 32.8 36.5 35.9
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
18.9 23.8 30.2 35.9 34.5 35.5 33.9
3.7
3.3
3.6
2.4
15.2 20.5 26.6 33.5 31.4 31.4 30.1
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
15.3 23.0 35.6 37.1 38.1 41.1 38.3
2.7
2.0
2.9
2.2
12.6 21.0 32.7 34.9 36.0 37.9 36.2
125 250 500 1000 2000 4000 8000 A:5 H A:5 M A:5 L SNR
14.6 22.7 33.5 36.9 37.5 41.7 39.3
2.2
1.9
2.3
3.1
12.4 20.8 31.2 33.8 33.5 39.0 37.5
2.1
3.0
3.1
35
3.4
3.9
3.2
34
3.1
4.1
3.8
32
2.1
3.2
2.1
37
4.0
2.7
1.8
36
31
24
33
449 g
29
21
31
434 g
29
22
31
472
30
21
33
509 g
30
21
32
493 g
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