4
LABORATORY ATTENUATION
Product Note
• Storage temperature (complete kit): -4°F to 122°F (-20°C to 50°C).
• Operating temperature earpiece: -4°F to 122°F (-20 to +50°C)
• Operating temperature charger: 32°F to 122°F (0 to +50°C)
Product Components: Earpiece
1. Power / Control Button (Fig. A:1)
2. Microphone (Fig. A:2)
3. Charging contacts (Fig. A:3)
4. Eartip stem (Fig. A:4)
5. Eartip (Fig. A:5)
125
36.3
5.3
250
35.7
5.5
500
39.8
5.5
1000
41.4
4.2
2000
40.4
3.4
3150
43.0
4.6
4000
41.9
3.5
6300
48.2
4.6
8000
46.0
4.2
AL
30
Test frequencies (Hz)
CSA
CLASS
NRR
Mean attenuation (dB)
Standard deviation (dB)
3M
TM
PELTOR
TM
Skull Screws
TM
Communication Eartips (not included)
ANSI S3.19-1974
Test frequencies (Hz) 125 250 500 1000 2000 3150 4000 6300
CSA
CLASS
NRR
8000
Mean attenuation (dB)
Standard deviation (dB)
34.5
4.2
30.6
3.9
36.3
4.1
35.2
3.0
35.5
3.5
38.6
3.3
37.6
3.8
44.6
3.6
45.7
4.3
AL
27
3M
TM
PELTOR
TM
CCC-GRM-25 Communication Eartips ANSI S3.19-1974
Test frequencies (Hz) 125 250 500 1000 2000 3150 4000 6300
CSA
CLASS
NRR
8000
Mean attenuation (dB)
Standard deviation (dB)
36.2
5.1
33.7
5.2
34.7
5.5
32.0
3.9
34.5
3.4
37.4
5.3
35.6
6.5
38.0
4.4
37.5
5.4
AL
23
3M
TM
PELTOR
TM
UltraFit
TM
Communication Eartips ANSI S3.19-1974
A:1
A:2
A:3
A:4
A:5
Fig. A
