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THE FOLLOWING SUPPLEMENTARY INFORMATION APPLIES TO SUPREME, ONLY IN USA/CAN:
Tested according to ANSI Specifications, ANSI S3.19-1974
Information required by E.P.A:
The level of noise entering a person's ear, when hearing protection is worn as directed, is closely
approximated by the difference between the A-weighted environmental level and the NRR. Example: The
environmental noise level at the ear is 92 dB(A). The NRR is 23 decibels (dB). The level of noise entering the ear
is approximately equal to 69 dB(A).
CAUTION:
For noise environments dominated by frequencies below 500 Hz, the C-weighted environmental noise level
should be used. Improper fit of this device will reduce its effectiveness in attenuating noise. Although hearing
protections can be recommended for protection against harmful effect of impulse noise, the Noise Reduction
Rating (NRR) is based on the attenuation of continuous noise and may not be an accurate indicator of the
protection attainable against impulsive noise, such as gunfire.
ATTENUATION DATA – Supreme Pro
Frequency (Hz)
125
Mean (dB)
11,1
Standard
2,6
deviation (dB)
ATTENUATION DATA – Supreme Pro
Frequency (Hz)
125
Mean (dB)
14,7
Standard
3,7
deviation (dB)
#75302
250
500
1000
2000
16,5
23,1
25,0
29,5
3,0
3,2
2,8
4,1
#76302
250
500
1000
2000
17,2
23,5
27,3
2,1
2,9
2,5
2,6
31
3150
4000
6300
8000
33,9
35,5
38,3
38,7
3,1
3,6
4,0
3,2
3150
4000
6300
34,7
38,5
41,5
2,8
3,7
1,6
19
#76302
NRR
18
18
#75302
8000
NRR
41,7
19
2,5
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