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An industrial hygiene study of polyurethane foam insulation manufacturing at the Isocyanate Products Division of the Witco Chemical Company.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 69-13, 1980 Jun; :1-22
Worker exposures to methylene-bisphenyl-isocyanate (101688), (MDI), fluorotrichloromethane (75694) (FTCM), alpha-methyl-styrene (98839) (AMS), dimethylethanolamine (108010) (DMEA), dimethylcyclohexylamine (98942) (DMCH), triethylenediamine (280579) (TED), and tetramethylbutanediamine (97847) (TMBD) were determined at the Isocyanate Products Division of the Witco Chemical Company (SIC- 2865) in New Castle, Delaware, from October 31 to November 1, 1979. The survey was part of a NIOSH industry-wide industrial hygiene assessment of thermal insulation manufacturing and application activities. The company maintained a formal safety and industrial health program. TMBD, TED, DMEA, and AMS styrene were not detected in any of the air samples. MDI concentrations did not exceed the OSHA standard of 0.02 parts per million (ppm) ceiling limit. FTCM exposures were below the federal standard of 1.0ppm. DMCH was detected in the personal samples of two employees. The authors conclude that the existing precautions observed in this company are adequate to maintain vapor concentrations of materials associated with manufacturing polyurethane thermal insulation products within the limits established by OSHA. They recommend use of safety goggles and the installation of a shower and eyewash station.
NIOSH-Author; NIOSH-Survey; Field-Study; Region-3; Health-surveys; Insulation-industry; Air-sampling; Worker-health; Industrial-hygiene; Air-contamination; Workplace-studies
101-68-8; 75-69-4; 98-83-9; 108-01-0; 98-94-2; 280-57-9; 97-84-7
Field Studies; Industry Wide
NTIS Accession No.
National Institute for Occupational Safety and Health
DE; OH; MD
Enviro Control, Inc.
Page last reviewed: July 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division