Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	1,126	365
453	JANITORS AND CLEANERS	82
508	AIRCRAFT ENGINE MECHANICS	6,707	57
515	AIRCRAFT MECHANICS, EXC. ENGINE	1,074
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	8,809
575	ELECTRICIANS	7,047
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	1,006	445
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	7,047
589	GLAZIERS	304
633	SUPERVISORS, PRODUCTION OCCUPATIONS	185	62
637	MACHINISTS	117
645	PATTERNMAKERS AND MODEL MAKERS, METAL	1,857
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	556	62
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	3
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	9
719	MOLDING AND CASTING MACHINE OPERATORS	1,984	1,119
723	METAL PLATING MACHINE OPERATORS	6	3
734	PRINTING MACHINE OPERATORS	1,061
744	TEXTILE SEWING MACHINE OPERATORS	12,127	12,127
755	EXTRUDING AND FORMING MACHINE OPERATORS	136
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	1,400	34
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	236
785	ASSEMBLERS	902	508
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	123	62
TOTAL		53,904	14,844

*(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.