Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	36
515	AIRCRAFT MECHANICS, EXC. ENGINE	567	21
653	SHEET METAL WORKERS	213	128
674	MISCELLANEOUS PRECISION APPAREL AND FABRIC WORKERS	64
753	CEMENTING AND GLUING MACHINE OPERATORS	303	24
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	227
785	ASSEMBLERS	72	14
889	LABORERS, EXCEPT CONSTRUCTION	28	11
TOTAL		1,510	198

*(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.