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Idiomas disponibles
Idiomas disponibles
A) ANSI S3.19-1974
Folding Headband with foam cushion
MT20H682FB-**N**
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
Folding Headband with gel cushion
MT20H682FB-**N** with HY80A
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
Backband with foam cushion
MT20H682BB-**N**
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
Backband
with gel cushion
MT20H682BB-**N** with HY80A
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
Helmet attachment with foam cushion
MT20H682P3AD-**N**
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
Helmet attachment
with gel cushion
MT20H682P3AD-**N** with HY80A
A:1 Frequency (Hz) (ƒ)
A:2 Mean attenuation (dB) (M
A:3 Standard deviation (dB) (s
• Tested with 3M™ Ceradyne™ Ballistic Helmet
• Tested with OPSCOR Helmet
*3M strongly recommends individual fit testing of hearing protectors. If the NRR is used to estimate typical workplace protection,
3M recommends that the noise reduction value be reduced by 50% or in accordance with applicable regulations.
FP3849reva_6sidedcover_32sidedinsert_A5.indd 6
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
13.6
17.7
28.8
31.9
f
)
2.6
2.5
2.7
1.9
f
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
11.4
15.7
21.7
28.9
f
)
2.8
2.7
2.0
2.7
f
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
15.5
17.9
26.0
31.3
f
)
4.0
2.5
2.3
2.7
f
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
15.2
17.6
24.9
30.5
f
)
4.2
2.7
2.3
3.8
f
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
15.1
20.3
26.4
32.1
f
)
3.9
2.7
3.0
2.8
f
125
250
500
1000 2000 3150 4000 6300 8000 NRR
)
15.1
17.6
26.1
35.1
f
)
3.9
3.5
3.3
2.6
f
32.3
39.3
39.9
42.1
41.4
1.5
4.1
2.3
2.6
2.5
33.1
40.8
38.8
37.3
37.3
1.9
3.5
3.7
2.5
3.5
32.4
38.9
41.3
44.7
46.2
3.2
3.2
3.0
3.8
4.4
33.4
39.3
41.4
46.2
45.8
4.1
3.0
3.4
3.0
4.7
33.0
39.7
34.1
39.4
40.1
3.5
3.7
3.5
2.9
2.3
32.9
40.9
35.3
39.5
40.0
2.8
2.3
3.0
2.6
2.4
CSA
Class
23*
B
CSA
Class
20*
B
CSA
Class
22*
B
CSA
Class
21*
B
CSA
Class
22*
A
CSA
Class
21*
A
2018-11-30 10:29:53
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