Noise Hazard Evaluation, U.S. Army 1975, Sound Level Data of Noise Sources

For the Army's Noise Level of common items[Helicopters, tanks, etc.] look at this 1975 U.S. Army guide for "Noise Hazard Evaluation":

Found at TG 040 (3,105 KB)

* Noise Hazard Evaluation - Sound Level Data of Noise Sources (USACHPPM POC: Army Hearing Program (51) at 410-436-3797)
* Published – January 1975