Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	103	52
368	WEIGHERS, MEASURERS, AND CHECKERS	103
385	DATA-ENTRY KEYERS	1,602	764
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	52
453	JANITORS AND CLEANERS	922
508	AIRCRAFT ENGINE MECHANICS	6,707	57
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	840
575	ELECTRICIANS	6,622
576	ELECTRICIAN APPRENTICES	368
655	MISCELLANEOUS PRECISION METAL WORKERS	122
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	9
676	PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS	35
734	PRINTING MACHINE OPERATORS	749
753	CEMENTING AND GLUING MACHINE OPERATORS	87	52
756	MIXING AND BLENDING MACHINE OPERATORS	464
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	227
769	SLICING AND CUTTING MACHINE OPERATORS	285
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	96
779	MACHINE OPERATORS, NOT SPECIFIED	192	9
785	ASSEMBLERS	110	44
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	74
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	190
888	HAND PACKERS AND PACKAGERS	1,011
TOTAL		20,970	978

*(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.