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In-depth study report: control technology for autobody repair shops: small parts painting in a downdraft booth at BASF Corporation, Whitehouse, Ohio, report no. CT-179-17a.

Authors
Heitbrink-WA; Dunn-KH; Hoermann-TH
Source
NIOSH 1999 Jun; :1-32
NIOSHTIC No.
20000563
Abstract
This study was conducted to evaluate whether paint overspray exposures could be minimized by orienting the parts to be painted. In this study, the effect of part orientation upon pain mist concentrations was studied in a downdraft spray painting booth. The booth had an exhaust trench along the center axis of the booth. Two parts were repeatedly painted: A fender and a bumper. The parts were set on sawhorses on top of this exhaust trench. When the bumper was perpendicular to the exhaust trench, the geometric mean total paint mist concentration increased from 5.5 to 15 COM (p-0.007). This increased exposure may be due to an eddy located under cornices on the side of the booth. When paint overspray is directed into these eddies, the eddy transports the paint overspray to the top of booth, resulting in the contamination of the incoming fresh air. Computer modeling suggests that these eddies can be eliminated by altering the configuration of the booth.
Keywords
Region-5; Control-technology; Control-equipment; Paint-spraying; Paint-shops; Automobile-repair-shops;
Publication Date
19990601
Document Type
Field Studies; Control Technology
Fiscal Year
1999
NTIS Accession No.
PB99-167058
NTIS Price
A04
Identifying No.
ECTB-179-17a
NIOSH Division
DPSE
SIC Code
2851
Source Name
National Institute for Occupational Safety and Health
State
OH
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