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HHE determination report no. HHE-75-195-396, United Airlines Maintenance Base, San Francisco International Airport, Burlingame, California.
Okawa MT; Keith W
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 75-195-396, 1977 May; :1-32
A Health Hazard Evaluation investigation was conducted by NIOSH at the working hangars (SIC-4582) of the United Airlines Maintenance Base, Burlingame, California. An authorized employee representative requested the investigation for worker exposure to substances used in the stripping, priming and painting of jet aircraft, and other solvents. Since the operation covers up to 1450 employees, it was decided to conduct a medical study on a representative sample of workers and to take environmental measurements during all operations of industrial hygiene significance. The study revealed that during paint stripping employees without respiratory protection are exposed to potentially toxic concentrations of methylene-chloride (75092), a fact also confirmed by the high rate of complaints of occasional eye irritation, throat irritation, and head congestion when in close proximity to the paint stripping operation. Employees in contact with other solvents, including toluene (108883), isopropyl alcohol (67630), methyl-ethyl-ketone, n-butyl acetate, n-butyl-alcohol, ethyl-acetate, cyclohexanone (108941), methyl-isobutyl-ketone (78933), xylene (1330207), cellosolve-acetate, and phenol (108952), are not exposed to toxic levels of these chemical agents. Employees who spray paint aircraft with paint containing hexamethylene- diisocyanate may be exposed to potentially toxic levels of this agent, although this fact could not be conclusively established. Recommendations are made designed to keep employee exposure to these chemical agents to a minimum.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; HHE-75-195-396; Hazard-Confirmed; Region-9; Toxicology; Air-quality-measurement; Toxic-substances; Aerospace-industry; Author Keywords: paint stripping; methylene chloride; hexamethylene diisocyanate; HDI; eye irritation; throat irritation
75-09-2; 108-88-3; 67-63-0; 108-94-1; 78-93-3; 1330-20-7; 108-95-2
Field Studies; Health Hazard Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: December 4, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division