Review of measurement methods for hearing protector attenuation

Selamat, Atiqah and Razali, Ailin (2019) Review of measurement methods for hearing protector attenuation. Malaysian Journal of Medicine and Health Sciences, 15 (3). pp. 142-147. ISSN 1675-8544 E-ISSN 2636-9346

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Abstract

The attenuation degree labelled on hearing protectors is based on internationally set standards. The attenu- ation is measurement in laboratories using methodology of real-ear attenuation at threshold (REAT), microphone in-real ear (MIRE) and acoustics test feature (ATF). The measured attenuation gap from the actual workplace is a problematic predicament. The conceptual review of how far these methods affect the gap could embark future researches. Therefore, a conceptual review of the conducted methodologies according to standards for attenuation which include Noise Reduction Rating (NRR) and Single Number Rating (SNR) are discussed in this paper. 23 papers from ProQuest, EBSCOhost and Google Scholar databases are chronologically reviewed. Summarily, the improved attenuation measurement methods will help close the gap between laboratory data and field performance and sub- sequently will better prevent Noise-Induced Hearing Loss. Most of the latest findings after year 2010 were in agree- ment with the studies in 2000 to 2009.

Item Type:	Article (Journal)
Additional Information:	3320/76345
Uncontrolled Keywords:	ANSI 12.6, EPA 40 CFR 211, Hearing protection device attenuation, ISO 4869, Laboratory standard
Subjects:	R Medicine > RA Public aspects of medicine
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Medicine > Department of Otolaryngology - Head and Neck Surgery Kulliyyah of Medicine
Depositing User:	Dr Ailin Razali
Date Deposited:	18 Dec 2019 15:06
Last Modified:	18 Dec 2019 15:06
URI:	http://irep.iium.edu.my/id/eprint/76345

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