Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	103	52
368	WEIGHERS, MEASURERS, AND CHECKERS	103
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	52
453	JANITORS AND CLEANERS	258
593	INSULATION WORKERS	633
653	SHEET METAL WORKERS	213	128
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	479
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	2,548	158
753	CEMENTING AND GLUING MACHINE OPERATORS	42	21
756	MIXING AND BLENDING MACHINE OPERATORS	155
779	MACHINE OPERATORS, NOT SPECIFIED	4,614	1,758
785	ASSEMBLERS	599
889	LABORERS, EXCEPT CONSTRUCTION	28	11
TOTAL		9,827	2,127

*(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.