Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	107	53
224	CHEMICAL TECHNICIANS	1,061	348
235	TECHNICIANS, N.E.C.	512	183
453	JANITORS AND CLEANERS	329
696	STATIONARY ENGINEERS	11
734	PRINTING MACHINE OPERATORS	1,096	411
739	KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS	5,499	3,195
743	TEXTILE CUTTING MACHINE OPERATORS	364
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	129
779	MACHINE OPERATORS, NOT SPECIFIED	185	3
783	WELDERS AND CUTTERS	248	130
785	ASSEMBLERS	2,461	373
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	3
889	LABORERS, EXCEPT CONSTRUCTION	165	91
TOTAL		12,168	4,787

*(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.