Idiomas disponibles
Idiomas disponibles
A) STANDARD EN 352-1:2020
3M strongly recommends personal fit testing of hearing protectors. Research suggests that users may
receive less noise reduction than indicated by the attenuation label value(s) on the packaging due to
variation in fit, fitting skill, and motivation of the user. Refer to applicable regulations and guidance on how to
adjust attenuation label value(s). In the absence of applicable regulations, it is recommended that the
attenuation label value(s) be reduced to better estimate typical protection.
A:A Headband earmuff with foam cushions
Optime I H510A
A:2 MV (dB)
A:3 SD (dB)
A:4 APV = MV - SD (dB)
A:6 S, M, L
Optime II H520A
A:2 MV (dB)
A:3 SD (dB)
A:4 APV = MV - SD (dB)
A:6 S, M, L
Optime III H540A
A:2 MV (dB)
A:3 SD (dB)
A:4 APV = MV - SD (dB)
A:6 S, M, L
A:1 f (Hz)
125
250
500
1000 2000 4000 8000
10.1
16.0
29.1
34.6
2.6
1.6
2.2
2.1
7.6
14.4
26.9
32.5
A:1 f (Hz)
125
250
500
1000 2000 4000 8000
13.7
20.7
33.0
38.1
2.7
1.8
2.0
1.6
11.0
18.9
31.0
36.5
A:1 f (Hz)
125
250
500
1000 2000 4000 8000
18.1
24.5
36.4
37.9
2.2
1.8
2.4
1.8
15.9
22.6
34.0
36.1
36.8
39.8
36.2
36.9
2.5
2.1
4.1
1.4
34.4
37.7
32.1
35
36.8
39.9
35.2
37.3
3.3
3.1
4.3
1.9
33.4
36.8
30.9
35
36.4
39.3
37.6
37.4
2.9
3.3
3.7
2.5
33.6
36.0
33.8
35
A:5
H
M
L
SNR
26.8
17.3
29.1
1.5
2.0
1.6
25
15
27
A:5
H
M
L
SNR
30.7
21.3
32.4
1.3
2.1
1.4
29
19
31
A:5
H
M
L
SNR
33.7
25.5
35.1
1.2
1.4
1.3
32
24
34
151g
195g
293g
