DH132 Combat Vehicle Crewman's Helmet		
Health Hazard Assessment Data from Felix Sachs - USAARL data		
Freq(Khz) Mean_Gain(dB) StDev_Gain(dB) Note: -10dB Gain = 10dB Attenuation		
0.063	-6.2	0
0.125	-10.3	0
0.25	-14.7	0
0.5	-21	0
1	-23.8	0
2	-18.1	0
4	-35.7	0
8	-18	0
