In-depth survey report: control of perchloroethylene (PCE) in vapor degreasing operations, site #2.
Almaguer-D; Shulman-S; Khan-A
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, EPHB 256-16b, 2002 Aug; :1-28
Worker exposures to perchloroethylene (PCE) occur in a large number of industries where PCE is used for organic solvent vapor cleaning (degreasing). Solvent degreasing does not constitute a distinct industrial category, but is an integral part of many major industries. This report examines worker exposures to PCE during the loading and unloading of parts, and the performance of an open-top vapor degreaser equipped with a local exhaust ventilation system at the loading/unloading station. Air samples for PCE were collected on two separate occasions covering five days of degreasing operations. The PCE concentrations measured in the building ranged from 21 to 38ppm during closed building conditions and ranged from 16.3ppm to 22.4ppm during open building conditions. After repairs to the PCE vapor degreaser concentrations were further reduced to a range of 6.6ppm to 12.7ppm following the maintenance operations. A review of the sampling results showed that the degreaser operators were not exposed to perchloroethylene concentrations in excess of the OSHA PEL, but indicate that proper equipment maintenance effectively reduces employee exposure concentrations.
Solvent-vapor-degreasing; Solvent-vapors; Solvents; Organic-solvents; Ventilation-equipment; Ventilation-hoods; Ventilation-systems; Metal-finishing; Region-4; Control-technology
Control Technology; Field Studies
NTIS Accession No.
Research Tools and Approaches: Control Technology & Personal Protective Equipment
National Institute for Occupational Safety and Health