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Health hazard evaluation determination report: HHE-80-45-688, U.S. Precision Lens, Inc., Cincinnati, Ohio.
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 80-45-688, 1980 May; :1-10
Personal breathing zone and area air samples were taken and affected employees were interviewed to determine whether exposures to polymethyl-methacrylate (9011147) methyl-methacrylate-vapor (80626) and 1,1,1-trichloroethane (71556), toluene (108883), magnesium- fluoride (7783406) isopropyl-alcohol (67630), iron-oxide (1345251), and oil mist were posing a health hazard to massive optics (M.O.) and tool grinding room (T.G.) employees of U.S. Precision Lense Incorporated (SIC-307) in Cincinnati, Ohio, on January 17 and 18, 1980. The evaluation was requested by the company. The facility employs 250 workers with an unspecified number working in the M.O. and T.G. rooms. Personal breathing zone and area air samples were taken and analyzed of each for the contaminants. Bulk samples were analyzed for silica content. Sample results for the contaminants ranged up to 20 percent of the recommended exposure limits. Bulk samples did not contain silica. The authors conclude that the exposures to the sampled substances were not hazardous to the employees at the time of the investigations.
NIOSH-Author; HHE-80-45-688; NIOSH-Health-Hazard-Evaluation; Region-5; Hazards-Unconfirmed; Hazardous-chemicals; Vapors; Air-sampling; Breathing-zone; Work-environment; Sample-testing; Occupational-exposure; Air-contaminants; Analytical-methods; Silica-dusts; Author Keywords: Optics; Tool Grinding; Polymethyl Methacrylate; Methyl Methacrylate Vapor; 1,1,1-Trichloroethane; Toluene; Magnesium Fluoride; Isopropyl Alcohol; Iron Oxide; Oil Mist
9011-14-7; 80-62-6; 71-55-6; 108-88-3; 7783-40-6; 67-63-0; 1345-25-1
Field Studies; Health Hazard Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division