INVESTIGATION OF EAR PLUGS FOR PROTECTION AGAINST GUN BLAST

Abstract

Acoustic protection is needed for all personnel who are regularly exposed to the noise of gun fire or to blast. The characteristics and course of the temporary loss are like that following exposure to sustained high noise levels. Expedients in current use (cotton and waste) are unsanitary and not entirely reliable. Of the plugs tested, NODS, and the baffled rubber stopper were inadequate and impractical to use. M.S.A. Ear Defenders, N.D.R.C. Ear Wardens and Sepco Plugs provide the best protection against temporary loss. Sepco plugs are somewhat less satisfactory because of higher attenuation of speech.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 05, 1944
Accession Number
AD0655569

Entities

Organizations

  • United States Army Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Acoustic Insulation
  • Artillery Fire
  • Attenuation
  • Base Lines
  • Blast
  • Blast Waves
  • Deafness
  • Ear
  • Frequency
  • Gunnery
  • Guns
  • Hearing
  • Hearing Loss
  • Instructors
  • Machine Guns
  • Materials
  • Pressure Measurement

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Materials Science
  • Military History / Militaries and War Studies