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Relevant test methods for establishing sound power levels of powered hand tools.

Authors
Hayden-CS II; Zechmann-EL
Source
Noise Control Eng J 2009 May-Jun; 57(3):279-290
NIOSHTIC No.
20036329
Abstract
High rates of noise induced hearing loss among construction workers provides the motivation for providing noise exposure level information to users and purchasers of powered hand tools. This paper describes relevant sound power level test methods necessary to estimate a tool user's noise exposure. The data are summarized here while detailed test results are posted on a National Institute for Occupational Safety and Health (NIOSH) website database, searchable by tool types, make, and model. The tools database also links directly to the NIOSH Hearing Protector Device Compendium, recommending the appropriate hearing protection for the given noise exposure. Measuring the sound power level in both the loaded and unloaded conditions and reporting the greater value is appropriate for the intended use of providing the relevant data to be used in making purchasing decisions and choosing correct hearing protection. While these researchers tested tools in both the loaded and unloaded conditions, much of the testing in the loaded condition required development of test jigs, methods, and procedures not detailed in existing test standards. It is recommended that efforts be initiated to develop standardized test jigs and methods, such as detailed here, so noise emission levels of power tools can be determined in a relevant and uniform manner from lab to lab.
Keywords
Analytical-processes; Analytical-instruments; Sound-analyzers; Noise-levels; Noise-measurement; Noise-frequencies; Power-tools
Contact
Charles S. Hayden, National Institute of Occupational Safety and Health, 4676 Columbia Parkway C27, Cincinnati OH 45226
CODEN
NCEJD5
Publication Date
20090501
Document Type
Journal Article
Email Address
CHayden@cdc.gov; EZechmann@cdc.gov
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
3
ISSN
0736-2501
NIOSH Division
DART
Priority Area
Construction
Source Name
Noise Control Engineering Journal
State
OH
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