Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	217	176
096	PHARMACISTS	82	14
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,244	909
224	CHEMICAL TECHNICIANS	330	240
453	JANITORS AND CLEANERS	62
567	CARPENTERS	4,293
573	DRYWALL INSTALLERS	326
644	PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS	5
783	WELDERS AND CUTTERS	106
869	CONSTRUCTION LABORERS	381
873	PRODUCTION HELPERS	106
TOTAL		7,152	1,339

*(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.