NOISE EXPOSURE
There is considerable medical research data now available which clearly demonstrates a
link between the loss of hearing in humans as a result of exposure to noise. The factors
which contribute to this loss of hearing are many and complex, and as the Headset user
you should discuss your requirements with suitably qualified professionals to ensure that
the headset you have selected is suitable for the type (frequencies) of noise & level of
noise you may encounter as well as the period of exposure. The chart below should be
read in conjunction with AS/NZ standard 1269.
Noise Exposure Chart
85
90
95
100
105
110
115
120
125
0.01
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
16
14
12
10
8
7
6
5
4
3
2
1.5
1
50
40
30
0
15
20
30
40
50
1
1.5
2
3
10
9
8
7
6
5
4
20
s
econ
d
s.
mi
n
ut
e
s
ho
u
rs
Noise Level - Continuous (L
) dB(A)
Aeq ,T, I
D
U
RA
TION
OF
S
EGM
EN
T (
T,
i)
EXCESSIVE NOISE EXPOSURE
IN THIS REGION
NOISE
DOSE
9
Содержание HSP-1 Series
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