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Health hazard evaluation report: HETA-86-162-1782, Continental Refrigeration Corporation, Exton, Pennsylvania,.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 86-162-1782, 1987 Mar; :1-17
A request was made for a hazard evaluation at the Continental Refrigeration Corporation (SIC-3585) in Exton, Pennsylvania, to determine possible worker exposure to welding fumes and other materials used in foam filling, assembly and crating operations, including solvents and carbon-monoxide (630080). Personal breathing zone air samples were analyzed for particulates, aluminum (7429905), iron (7439896), zinc (7440666), toluene (108883), petroleum distillate, methylene-chloride (75092), methyl-ethyl-ketone (78933), and methylene-bisphenyl-diisocyanate (101688) (MDI). Exposures to methylene-chloride ranged from 29 to 213mg/m3. No overexposures were registered for welding fumes, solvents, MDI or carbon-monoxide during these sampling periods. The author concludes that a potential hazard exists from methylene-chloride exposure. According to the author, the level of methylene-chloride should be lowered through substitution with a less hazardous process material, automation, ventilation, improved work practices or a combination of these steps. Some lowering of carbon-monoxide levels would be achieved through better design criteria of the lift truck ventilation system and modifications of facility operations in this regard.
NIOSH-Author; HETA-86-162-1782; Region-3; NIOSH-Health-Hazard-Evaluation; Hazard-Confirmed; NIOSH-Technical-Assistance-Report; Organic-solvents; Isocyanates; Chlorinated-hydrocarbons; Air-sampling; Author Keywords: commercial and industrial refrigeration equipment; methylene chloride; welding fumes; toluene; petroleum distillate; methyl ethyl ketone; methylene bisphenyl isocyanate; carbon monoxide
630-08-0; 7429-90-5; 7439-89-6; 7440-66-6; 108-88-3; 75-09-2; 78-93-3; 101-68-8
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: February 7, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division