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Control technology for falling solids at Rohm and Haas, Louisville, Kentucky.

Authors
Heitbrink-WA; Todd-WF
Source
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, ECTB 154-10, 1987 Feb; :1-32
NIOSHTIC No.
00167872
Abstract
A control technology study was carried out by NIOSH at the Rohm and Haas acrylic resins facility (SIC-2821) in Louisville, Kentucky, to examine the relationship between worker dust exposure and dustiness test results, and to determine if exposures can be estimated on the basis of material properties. Tests were done in the packaging room for KV-2 acrylic resin (9003014). Air sampling was done at three packaging locations and at a control location for background. For dustiness testing, the Heubach test and the Midwestern Research Institute (MRI) test were conducted. Data was obtained individually for six bulk samples. The highest mean exposure was 15.8mg/m3, which was significantly higher than those of the other five samples. This sample also had the highest dustiness by both tests, the largest fraction of fines and the smallest mean particle size. Overall, there was a significant correlation between mean dust exposures and dustiness test results, although tolerance limits of the model were high due to high variability in dust exposure. Material properties of increasing fine content and decreasing particle size were correlated with increasing dustiness and dust exposure; the authors caution that particle cohesion may influence this relationship. The Heubach test was found to be superior to the MRI test. The authors recommend careful use of the regression analysis data and suggest that predictions of worker exposure may only be valid under conditions identical to those of this study.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; Region-4; Airborne-dusts; Dust-exposure; Acrylics; Dust-analysis; Workers; Workplace-studies; Physical-properties
CAS No.
9003-01-4
Publication Date
19870201
Document Type
Field Studies; Control Technology
Fiscal Year
1987
NTIS Accession No.
PB87-189486
NTIS Price
A04
Identifying No.
ECTB-154-10
NIOSH Division
DPSE
SIC Code
2821
Source Name
National Institute for Occupational Safety and Health
State
KY; OH
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