National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name PHENYLENEDIAMINE, PARA-, N-(1,3-DIMETHYLBUTYL)-N'-PHENYL-
CAS # 793-24-8
RTECS # ST1100000
Agent Code T1079

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 57  
357 MESSENGERS 278  
453 JANITORS AND CLEANERS 281 7
505 AUTOMOBILE MECHANICS 5,181  
519 MACHINERY MAINTENANCE OCCUPATIONS 271  
575 ELECTRICIANS 338  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 433  
653 SHEET METAL WORKERS 88  
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 35  
719 MOLDING AND CASTING MACHINE OPERATORS 416 249
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 949 79
753 CEMENTING AND GLUING MACHINE OPERATORS 616  
755 EXTRUDING AND FORMING MACHINE OPERATORS 676 65
756 MIXING AND BLENDING MACHINE OPERATORS 5,002 264
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 96  
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 20  
769 SLICING AND CUTTING MACHINE OPERATORS 581 58
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 4,224 339
779 MACHINE OPERATORS, NOT SPECIFIED 41  
783 WELDERS AND CUTTERS 102  
785 ASSEMBLERS 266 29
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 288 29
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 156  
873 PRODUCTION HELPERS 108  
878 MACHINE FEEDERS AND OFFBEARERS 88  
TOTAL 20,590 1,118

*(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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