Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
374	MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C.	5
453	JANITORS AND CLEANERS	232
514	AUTOMOBILE BODY AND RELATED REPAIRERS	2,991
515	AIRCRAFT MECHANICS, EXC. ENGINE	12,644
519	MACHINERY MAINTENANCE OCCUPATIONS	1,171	123
549	NOT SPECIFIED MECHANICS AND REPAIRERS	59
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	756	233
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	308
719	MOLDING AND CASTING MACHINE OPERATORS	38
734	PRINTING MACHINE OPERATORS	1,535
738	WINDING AND TWISTING MACHINE OPERATORS	2,130	2,130
756	MIXING AND BLENDING MACHINE OPERATORS	5
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	145
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	769	38
779	MACHINE OPERATORS, NOT SPECIFIED	192	192
785	ASSEMBLERS	192
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	310
849	CRANE AND TOWER OPERATORS	27
869	CONSTRUCTION LABORERS	1,694
889	LABORERS, EXCEPT CONSTRUCTION	1,229
TOTAL		26,433	2,717

*(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.