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

Tobias, Jerry V.

i

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

1975-01-01
By Tobias, Jerry V.

File Language:

English

Details

Creators:

Tobias, Jerry V.
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

United States. Office of Aviation Medicine
Subject/TRT Terms:

Attenuation (Physics) Audio Frequency Audiometry Auditory Perception Ear Ear--Protection--Evaluation Evaluation Hearing Noise Performance Performance Tests Protective Clothing Ratings Sound Attenuation Standard Deviation Standard Deviations
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
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

urn:sha-512:7766d8a0fa074839e8b5ce55438238088f15f293a1bbe7016322c99779028e3624943c447b4527749ec95a76624c8113739294c23ddc751e4e5148f8d3e8e5b8
Download URL:

https://rosap.ntl.bts.gov/view/dot/21069/dot_21069_DS1.pdf
File Type:

[PDF - 1.93 MB ]

File Language:

English

ON THIS PAGE

Details

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.