Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
057	MECHANICAL ENGINEERS	383	14
073	CHEMISTS, EXCEPT BIOCHEMISTS	2,136	442
223	BIOLOGICAL TECHNICIANS	686	300
224	CHEMICAL TECHNICIANS	351
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	847
365	STOCK AND INVENTORY CLERKS	1,609	408
385	DATA-ENTRY KEYERS	568	568
449	MAIDS AND HOUSEMEN	549	549
453	JANITORS AND CLEANERS	7,063	1,947
617	MINING OCCUPATIONS, N.E.C.	7,885
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	1,406
734	PRINTING MACHINE OPERATORS	5,430	199
735	PHOTOENGRAVERS AND LITHOGRAPHERS	29
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	1,476	768
749	MISCELLANEOUS TEXTILE MACHINE OPERATORS	435	300
756	MIXING AND BLENDING MACHINE OPERATORS	3,629	2,159
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	2,574	386
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	257	43
765	FOLDING MACHINE OPERATORS	376	188
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	92
769	SLICING AND CUTTING MACHINE OPERATORS	793	23
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	3
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,483	128
779	MACHINE OPERATORS, NOT SPECIFIED	263	17
783	WELDERS AND CUTTERS	751
TOTAL		41,075	8,440

*(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.