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CISDOC database

Document ID (ISN)36613
CIS number 81-1874
ISSN - Serial title 0022-460X - Journal of Sound and Vibration
Year 1981
Convention or series no.
Author(s) Sutton G.J., Robinson D.W.
Title An appraisal of methods for estimating effectiveness of hearing protectors
Bibliographic information 8 July 1981, Vol.77, No.1, p.79-91. Illus. 12 ref.
Abstract The protection (reduction in A-weighted sound pressure level at the ear) afforded by a hearing protector varies between wearers and between noises. According to the amount of information available on the noise, various methods exist for the estimation of the effective protection afforded by a protector. The octave-band and the single-number method are reviewed, together with their underlying assumptions. Attenuation data on individual wearers for 7 protectors were used in conjunction with 100 noise spectra to test the validity of these assumptions and to calculate and compare the errors of each method. The best single-number method, representing a practical compromise between accuracy and convenience, is one which generates a rating number to be subtracted from the C-weighted sound pressure level of the noise.
Descriptors (primary) protection criteria; hearing protection
Descriptors (secondary) sound attenuation; evaluation of equipment
Document type D - Periodical articles
Subject(s) Noise, hearing and vibration
Broad subject area(s)
Browse category(ies) Hearing protection