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