Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	108
365	STOCK AND INVENTORY CLERKS	3,546
453	JANITORS AND CLEANERS	84
734	PRINTING MACHINE OPERATORS	850
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	1,283	837
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	34
779	MACHINE OPERATORS, NOT SPECIFIED	3,546
TOTAL		9,451	837

*(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.