Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	77	51
368	WEIGHERS, MEASURERS, AND CHECKERS	119
453	JANITORS AND CLEANERS	319
744	TEXTILE SEWING MACHINE OPERATORS	5,747	5,673
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	1,359
756	MIXING AND BLENDING MACHINE OPERATORS	6,042	261
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	119
TOTAL		13,783	5,986

*(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.