Honeywell IMPACT PRO Mode D'emploi page 63

APPROVAL - SLC
80
Tested in accordance with AS/NZS 1270:2002
Tested according to AS/NZS 1270:2002
Frequency, Hz
Mean Attenuation, dB
Standard Deviation, dB
Mean (-) Stand. Dev., dB
Clamping Force: 12.1 N
APPROVAL - NRR
Tested in accordance with ANSI S3.19-1974
Tested according to ANSI S3.19-1974
Frequency, Hz
Mean Attenuation, dB
Standard Deviation, dB
The level of noise entering a person's ear, when
hearing protector is worn as directed, is closely
approximated by the difference between the
A-weighted environmental noise level and the NRR.
EXAMPLE:
1. The environmental noise level as
measured at the ear is 92 dBA.
2. The NRR is 30 decibels (dB).
3. The level of noise entering the ear is
approximately equal to 62 dBA.
Model Identification
Part no.
1018953
1034491
ATTENUATION DATA
(in passive mode, electronics off)
125 250 500
19.5 22.9 30.6
4.9 3.6 4.6
14.6 19.3 26.0
(in passive mode, electronics off)
125 250 500 1000
23.7 27.8 35.9 38.8
2.9 2.3 1.9 3.5
CAUTION: For noise environments dominated by frequencies below 500Hz, the
C-weighted environmental noise level should be used. Improper fit of this device will
reduce its effectiveness in attenuating noise. Consult the enclosed instructions for proper
fit. Although hearing protectors can be recommended for protection against the harmful
effects of impulsive 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. Constant or repetitive exposure to impulsive noise may lead
to serious injury, including temporary or permanent deafness. The Noise Reduction Rating
(NRR) calculated from the attenuation data is 30 dB. Earplugs must be properly fitted to
attenuate noise effectively. Refer to instructions.
Model Description
IMPACT® PRO (Regular)
IMPACT® PRO Industrial Earmuff
1000 2000 4000
35.9 37.8 38.5
4.1 3.7 4.3
31.8 34.1 34.2
2000 3150 4000 6300
38.5 41.2 39.3 41.0
2.7 3.2 2.2 2.1
Identification
Cup color - Black and Grey
Cup color - Black and Yellow
8000
SLC
80
39.4
31 dB
4.6
Class 5
34.8
8000
NRR
41.9
30 dB
2.7
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