C) STANDARD AS/NZS 1270:2002
C:A Headband with foam cushion
3M
TM
PELTOR
TM
ProTac III Slim Headset MT13H220A, 3M
TM
PELTOR
TM
ProTac Hunter headset MT13H222A
C:1 f (Hz)
125
250
500 1000 2000 4000 8000 C:5 SLC80
C:6 Class
C:7 Clamping
Force
C:2 Mean attenuation (dB)
13.1 15.7 22.4 28.2 31.8 38.8 35.9
26
5
11 N
303 g
C:3 Standard deviation (dB)
3.8
2.1
2.9
2.3
2.4
3.0
4.5
C:4 Mean minus SD
9.3
13.6 19.5 25.9 29.4 35.8 31.4
C:B Headband with foam cushion
3M
TM
PELTOR
TM
ProTac III Headset MT13H221A, 3M
TM
PELTOR
TM
ProTac Shooter Headset MT13H223A
C:1 f (Hz)
125
250
500 1000 2000 4000 8000 C:5 SLC80
C:6 Class
C:7 Clamping
Force
C:2 Mean attenuation (dB)
17.6 22.1 29.9 36.4 37.6 38.4 34.9
32
5
11 N
335 g
C:3 Standard deviation (dB)
3.7
3.7
3.3
2.8
2.2
2.4
2.6
C:4 Mean minus SD
13.9 18.4 26.6 33.6 35.4 36.0 32.3
C:C Carrier attachment with foam cushion earmuff
3M
TM
PELTOR
TM
ProTac III Slim Headset MT13H220P3E
C:1 f (Hz)
125
250
500 1000 2000 4000 8000 C:5 SLC80
C:6 Class
C:7 Clamping
Force
C:2 Mean attenuation (dB)
12.8 15.2 20.7 27.3 31.7 39.2 35.2
24
4
11 N
322 g
C:3 Standard deviation (dB)
3.5
4.3
4.4
4.0
2.6
4.3
5.0
C:4 Mean minus SD
9.3
10.9 16.3 23.3 29.1 34.9 30.2
C:8
This earmuff was tested with Protector HC600 industrial safety helmet.