HHE/Toxicity Determination Report No. HHE-72-22-31-34-24, Bendix Corporation, Kansas City, Missouri.
Karches-GJ; Lynch-JR; Lucas-J
NIOSH 1972 Dec:12 pages
Worker exposures to various chemicals were investigated on July 20 and 21, 1972 at Bendix Corporation in Kansas City, Missouri. The evaluation was requested by the International Association of Machinists and Aerospace Workers, Local 314, on behalf of 159 workers. Air samples were collected for toluene-2,4-diisocyanate (584849) (TDI), methyl-ethyl-ketone (78933) (MEK), solvents, and epoxy curing agents. Workers were interviewed about work related health symptoms. Concentrations of TDI in the hand mixing and molding area ranged from 0.023 to 0.036 parts per million (ppm) compared to the OSHA standard of 0.02ppm. MEK concentrations during cleaning operations were greater than 400ppm for a 20 minute sampling period. These concentrations did not exceed the 8 hour time weighed average standard of 200ppm, but they did exceed the short term excursion limit of 250ppm set by the American Conference of Governmental Industrial Hygienists. No other sampling results were reported. A common health problem was dermatitis due to irritant hardeners used with epoxy resin materials. Some workers also reported respiratory irritation that was possibly due to exposure to TDI, uncured epoxy compounds, or solvents. The authors conclude that hazardous exposures to TDI and MEK exist. They recommend improved ventilation, use of protective clothing, good personal hygiene practices, and reassignment of any worker sensitized to uncured epoxy compounds.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; Hazards-Confirmed; Industrial-equipment; Region-7; Industrial-chemicals; Toxic-vapors; Exposure-levels; HHE-72-22-31-34-24;
Hazard Evaluation and Technical Assistance; Field Studies
NTIS Accession No.
NIOSH, U.S. Department of Health, Education and Welfare, Cincinnati, Ohio, Report No. HHE-72-22-31-34-24, NTIS PB-229-121, 12 pages, 2 references