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An Industrial Hygiene Study of Polyurethane Foam Insulation Application Activities at John L. Renshaw, Inc., Beltsville, Md.

Authors
Resdorf-RP; Sawdaye-R
Source
NIOSH 1980 Jul:23 pages
Link
NIOSHTIC No.
00109863
Abstract
Worker exposures to methylene-bisphenyl-isocyanate (101688) (MDI), fluorotrichloromethane (75694), alpha-methyl-styrene (98839), dimethylcyclohexylamine (98942), triethylenediamine (280579), 2- ethoxyethanol (110805), a proprietory organotin compound, total particulate and carbon-monoxide (630080) were surveyed at John L. Renshaw, Incorporated (SIC-3079) in Beltsville, Maryland, from December 19 to 21, 1979, as part of an industrial hygiene survey of thermal insulation manufacturing and application activities. The Rensulate Division of the company employed 10 workers. The company conducted annual physical examinations and workers were supplied with respirators. Personal and area air samples were collected. Concentrations of MDI were 0.63 and 0.024 parts per million (ppm) for a mechanic and a helper, respectively. Area samples of MDI, dimethylcyclohexylamine, triethylenediamine, fluorotrichloromethane, alpha-methyl-styrene and 2-ethoxyethanol ranged from 0.02 to 0.069, 129ppm, respectively. Concentrations of proprietory organotin compounds and total particulates ranged from less than 5.2 to 38.0 and 4.1 to 6.9 milligrams per cubic meter, respectively. Carbon- monoxide concentration was 5ppm. Concentrations of MDI exceeded the OSHA standard of 0.02ppm. The author recommends engineering controls to reduce concentrations of methylene-bisphenyl-isocyanate.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; Plastic-products; Region-3; Health-surveys; Workplace-studies; Air-contamination; Health-services; Industrial-processes; Control-methods; Occupational-health-programs; Insulation-materials; IWS-69-17;
CAS No.
101-68-8; 75-69-4; 98-83-9; 98-94-2; 280-57-9; 110-80-5; 630-08-0;
Publication Date
19800701
Fiscal Year
1980
NTIS Accession No.
PB82-104563
NTIS Price
A03
Identifying No.
IWS-69-17
NIOSH Division
DSHEFS;
SIC Code
3079;
Source Name
Enviro Control, Inc., NIOSH Contract No. 210-78-0081, 23 pages, 18 references
State
MD;
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