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Assessment of engineering noise controls at a talc processing plant.

Authors
Spencer-ER; Reeves-E
Source
Min Eng 2009 Apr; 61(4):70-76
NIOSHTIC No.
20035221
Abstract
National Institute for Occupational Safety and Health (NIOSH) researchers conducted an investigation to quantify sound levels and to determine the amount of sound reduction provided by engineering noise controls installed in a talc processing plant. Baseline sound level and sound intensity measurements were performed at the plant, and the measurement locations were recorded for comparison to post-control measurements. Follow-up measurements were then made at the same locations after the initial noise controls were installed. The plant subsequently decided to implement additional noise controls and the researchers returned to conduct measurements for a fi nal analysis of all noise controls. The most signifi cant results showed a sound level reduction in the main mill area from a range of 93 to 104 dB(A) down to a range of 90 to 94 dB(A) and a total sound power level reduction of 21 dB(A) for air classifying Mill 3.
Keywords
Mineral-processing; Noise-control; Noise-shielding; Noise-shields; Engineering-controls; Control-technology; Sound-attenuation; Noise-levels
CODEN
MIENAB
Publication Date
20090401
Document Type
Journal Article
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
4
ISSN
0026-5187
NIOSH Division
PRL
Priority Area
Mining
Source Name
Mining Engineering
State
PA; CO; TX
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