National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name UREA, 1,3-DIBUTYL-2-THIO-
CAS # 109-46-6
RTECS # YS8400000
Agent Code X5467

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 112 19
224 CHEMICAL TECHNICIANS 44  
449 MAIDS AND HOUSEMEN 365 365
453 JANITORS AND CLEANERS 1,745 90
519 MACHINERY MAINTENANCE OCCUPATIONS 26 13
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 57  
637 MACHINISTS 231  
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 212 44
723 METAL PLATING MACHINE OPERATORS 32  
754 PACKAGING AND FILLING MACHINE OPERATORS 1,826 1,217
756 MIXING AND BLENDING MACHINE OPERATORS 199  
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 815 23
764 WASHING, CLEANING, AND PICKLING MACHINE OPERATORS 32 16
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 10  
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 102  
784 SOLDERERS AND BRAZERS 6  
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 162  
889 LABORERS, EXCEPT CONSTRUCTION 33  
TOTAL 6,009 1,787

*(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.

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