Document ID (ISN) | 33093 |
CIS number |
80-386 |
ISSN - Serial title |
0002-8894 - American Industrial Hygiene Association Journal |
Year |
1979 |
Convention or series no. |
|
Author(s) |
Thunder T.D., Lankford J.E. |
Title |
Relative ear protector performance in high vs low sound levels. |
Bibliographic information |
Dec. 1979, Vol.40, No.12, p.1023-1028. 13 ref. |
Abstract |
The attenuation of a commercial earplug was determined in 5 subjects with normal hearing and 5 with impaired hearing. The impaired-hearing group yielded significantly less attenuation than normal subjects. Since the measuring sound intensity level was high for the subjects with impaired hearing and low for the normal subjects, a threshold procedure using normal subjects as presented in American standard ANSI S3.19-1974 may overestimate the actual attenuation of ear protectors in most noisy environments. Reasons for the differences found are discussed. |
Descriptors (primary) |
noise level; earplugs; sound attenuation |
Descriptors (secondary) |
evaluation of equipment; audiometric tests; hearing loss; individual variables |
Document type |
- |
Subject(s) |
Noise, hearing and vibration
|
Broad subject area(s) |
|
Browse category(ies) |
Noise Hearing protection
|