Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
335	FILE CLERKS	104
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	1,419
365	STOCK AND INVENTORY CLERKS	205
368	WEIGHERS, MEASURERS, AND CHECKERS	408
385	DATA-ENTRY KEYERS	568	568
453	JANITORS AND CLEANERS	1,196
516	HEAVY EQUIPMENT MECHANICS	413
518	INDUSTRIAL MACHINERY REPAIRERS	72
519	MACHINERY MAINTENANCE OCCUPATIONS	65
549	NOT SPECIFIED MECHANICS AND REPAIRERS	494
558	SUPERVISORS, N.E.C.	207
575	ELECTRICIANS	225	6
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	25
633	SUPERVISORS, PRODUCTION OCCUPATIONS	104
637	MACHINISTS	4,919
653	SHEET METAL WORKERS	2,054
658	FURNITURE AND WOOD FINISHERS	2,113	1,330
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	256
696	STATIONARY ENGINEERS	96
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	52
707	ROLLING MACHINE OPERATORS	1,519
719	MOLDING AND CASTING MACHINE OPERATORS	801	541
734	PRINTING MACHINE OPERATORS	23,352	737
735	PHOTOENGRAVERS AND LITHOGRAPHERS	426	105
736	TYPESETTERS AND COMPOSITORS	13
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	2,759	1,605
753	CEMENTING AND GLUING MACHINE OPERATORS	56	28
756	MIXING AND BLENDING MACHINE OPERATORS	484
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	1,825	450
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	303	72
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	787	12
779	MACHINE OPERATORS, NOT SPECIFIED	757
783	WELDERS AND CUTTERS	608
785	ASSEMBLERS	1,359	144
849	CRANE AND TOWER OPERATORS	144
853	EXCAVATING AND LOADING MACHINE OPERATORS	1,760
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	62
869	CONSTRUCTION LABORERS	3,725
873	PRODUCTION HELPERS	1,695	363
888	HAND PACKERS AND PACKAGERS	940	78
TOTAL		58,370	6,040

*(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.