HHE Report No. HETA-85-131-1731, Hexcel Corporation, Dublin, California.
NIOSH 1986 Sep:25 pages
Possible exposure of workers in the Hexcel Corporation (SIC-9999), Dublin, California to pyrolysis products of organic amines, isocyanates, epoxies, and organic solvents was investigated as a result of a request. Hexcel manufactures industrial chemicals, pharmaceutical intermediates and urethanes. In the industrial line, work involves the making of structural materials of honeycomb and fiber composites including epoxy resin composites. Of the 200 employees, 50 work in the research and development labs, 20 being professional and 30 technical employees. No overexposures to inorganic mercury (7439976) or acetone (67641) were detected during this study. Fume hoods in the research and development area were tested; all capture velocities were within guidelines. In June of 1984 there was an accidental loss of control of a reaction (called an exotherm), producing heat, fumes, and odors. This exotherm caused elevated liver enzyme levels in exposed persons. While these levels remained high for several months, there was no sign of illness associated with them. The potential for liver toxicity requires that such exposures be kept to a minimum. The authors recommend that adequate volumes of make up air be available to each lab to compensate for air being exhausted by the hoods. The lab ventilation systems must be balanced relative to the hallways. A proper respirator program should be instituted. No portable fans should be used in the labs. Personal protection and ventilation procedures should be established to reduce exposures to exotherm products.
NIOSH-Publication; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; Hazard-Unconfirmed; Hazard-Confirmed; Region-9; HETA-85-131-1731; Chemical-industry-workers; Organic-solvents; Liver-function; Liver-damage; Ventilation-systems;
Hazard Evaluation and Technical Assistance;
NTIS Accession No.
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-85-131-1731, 25 pages, 9 references