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HHE determination report no. HHE-73-142-213, W. S. Dickey Clay Manufacturing Company, Pittsburg, Kansas.
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 73-142-213, 1975 Jul; :1-25
Evidence of minor acute irritative effects is found in some workers exposed to toluene-diisocyanate (584849) (TDI) and polymethylsiloxanes in a clay manufacturing unit (SIC-3255) in Kansas. No significant effects of acute respiratory impairment are noted. With the exception of carbon-monoxide (630080), all environmental sampling results for TDI, polymethylsiloxanes, mercury (7439976), methyl-ethyl-ketone (78933), xylene (1330207), and toluene (108883) are observed to be below the appropriate health standards for these substances. Results for TDI are indicative of a need for monitoring and evaluation during different conditions of use and environmental conditions.
NIOSH-Health-Hazard-Evaluation; NIOSH-Author; HHE-73-142-213; Region-7; Hazards-Confirmed; Toxic-gases; Safety-standards; Siloxanes; Isocyanates; Author Keywords: toluene-2,4-diisocyanate; TDI; polymethylsiloxanes; pulmonary function test; plastic; molding
584-84-9; 630-08-0; 7439-97-6; 78-93-3; 1330-20-7; 108-88-3
Field Studies; Hazard Evaluation and Technical Assistance
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National Institute for Occupational Safety and Health
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division