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CISDOC database
| Document ID (ISN) | 23232 |
| CIS number |
75-978 |
| ISSN - Serial title |
0038-1810 - Sound and Vibration |
| Year |
1974 |
| Convention or series no. |
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| Author(s) |
Johnson D.L., Nixon C.W. |
| Title |
Simplified methods for estimating hearing protector performance. |
| Bibliographic information |
June 1974, Vol.8, No.6, p.20-27. Illus. 6 ref. |
| Abstract |
Three methods for estimating the noise attenuation effectiveness of hearing protectors are described and evaluated, using typical noise spectra and attenuation data of 33 different protector systems (25 earmuffs, 5 combinations of earplugs and earmuffs, 3 earplugs): NIOSH/OSHA short method; Botsford short method; 2-number method. Noise spectra, hearing protector data and results of the calculations are listed in tables. It is recommended that the Botsford method with a 6dB safety factor be promoted as the best simplified method for evaluating hearing protector performance. |
| Descriptors (primary) |
hearing protection; evaluation of equipment; earmuffs; earplugs; sound attenuation |
| Descriptors (secondary) |
description of technique |
| Document type |
- |
| Subject(s) |
Noise, hearing and vibration
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| Broad subject area(s) |
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| Browse category(ies) |
Noise
Hearing protection
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