Preliminary industrial-hygiene survey report of Conley Corporation, Tulsa, Oklahoma. [4,4'-methlene-dianiline as hardening agent]

Technical Report · Sun Jun 01 00:00:00 EDT 1986

OSTI ID:7110093

Boeniger, M

In July, 1984, a preliminary industrial-hygiene survey was performed at Conley Corporation, Tulsa, Oklahoma, where 4,4'-methylene-dianiline (4,4'-MDA) is used as a hardening agent in manufacturing fiberglass epoxy pipe and pipe fittings. Air and hand contact samples from 2 of 6 workers tested showed 4,4'-MDA contamination. Workers with potential exposure wore neoprene rubber gloves. Workers with direct contact with uncured resin wore a medium-weight flock-lined neoprene glove and a heavy rubber glove over the inner glove when handling the resin. Half-face respirators were available for mixing-room workers. These respirators use combination dust/organic vapor replaceable cartridges. Detectable exposure to airborne 4,4'-MDA was noted for two individuals, the extrusion resin mixer and a winding operator at the extrusion fittings machine, 0.011 and 0.0005 mg/m/sup 3/, respectively, each below the present voluntary guideline of 0.8 mg/m/sup 3/.

• Research Organization: National Inst. for Occupational Safety and Health, Cincinnati, OH (USA)
• OSTI ID: 7110093
• Report Number(s): PB-86-237278/XAB; IWS-143.20
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AMINES
INDOOR AIR POLLUTION
CERAMICS INDUSTRY
HAZARDOUS MATERIALS
OCCUPATIONAL SAFETY
EPOXIDES
FIBERGLASS
INDUSTRIAL MEDICINE
INSPECTION
PIPE FITTINGS
PIPES
TOXICITY
AIR POLLUTION
INDUSTRY
MATERIALS
MEDICINE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLLUTION
SAFETY
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
552000 - Public Health