National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation*

Agent Name TRIMELLITIC ANHYDRIDE
CAS # 552-30-7
RTECS # DC2050000
Agent Code 83588

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
073 CHEMISTS, EXCEPT BIOCHEMISTS 629 85
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 5  
224 CHEMICAL TECHNICIANS 3,452 573
453 JANITORS AND CLEANERS 891  
719 MOLDING AND CASTING MACHINE OPERATORS 19 12
739 KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS 5,175 1,964
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 666  
756 MIXING AND BLENDING MACHINE OPERATORS 1,203  
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 15  
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 1,110  
779 MACHINE OPERATORS, NOT SPECIFIED 1,368 288
785 ASSEMBLERS 2,852 2,314
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 360  
TOTAL 17,745 5,236

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.

NIOSH Home | NIOSH Search | Site Index | Contact Us | NOES Home