Earplug rankings based on the protector-attenuation rating (P-AR).

Details

• Creators:
  Tobias, Jerry V.
• Corporate Creators:
  Civil Aeromedical Institute
• Corporate Contributors:
  United States. Office of Aviation Medicine
• Subject/TRT Terms:
  • Auditory perception
  • Noise
  • Sound attenuation
  • Ear
  • Standard deviation
  • Audio frequency
  • Ratings
  • Evaluation
  • Performance tests
  • Protective clothing
  More +
• Publication/ Report Number:
  FAA-AM-75-11;DOT/FAA/AM-75/11
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  OAM report.
• Corporate Publisher:
  Civil Aerospace Medical Institute
• NTL Classification:
  NTL-AVIATION-AVIATION ; NTL-SAFETY AND SECURITY-Human Factors ; NTL-AVIATION-Aviation Energy and Environment
• Abstract:
  Forty-five attenuation spectra for earplugs were classified according to a simplified method designed to produce single-number ratings of noise reduction. The rating procedure was applied to the mean attenuation scores, to mean-minus-one-standard-deviation scores, and to mean-minus-two-standard-deviations scores. The reporting of all three numbers seems to give the fairest indication of an earplug's value in controlling hearing damage in noise-exposed populations. The tests are described and ranked.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/21069/dot_21069_DS1.pdf
• File Type:
  [PDF - 1.93 MB]
• Collection(s):
  FAA Civil Aerospace Medical Institute ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7766d8a0fa074839e8b5ce55438238088f15f293a1bbe7016322c99779028e3624943c447b4527749ec95a76624c8113739294c23ddc751e4e5148f8d3e8e5b8