Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	159
073	CHEMISTS, EXCEPT BIOCHEMISTS	836
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	1,099	107
216	ENGINEERING TECHNICIANS, N.E.C.	1,689	181
223	BIOLOGICAL TECHNICIANS	375	150
224	CHEMICAL TECHNICIANS	3,344	550
225	SCIENCE TECHNICIANS, N.E.C.	189	105
549	NOT SPECIFIED MECHANICS AND REPAIRERS	7	7
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	282
646	LAY-OUT WORKERS	9
677	OPTICAL GOODS WORKERS	42
723	METAL PLATING MACHINE OPERATORS	223	36
735	PHOTOENGRAVERS AND LITHOGRAPHERS	1,026	91
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	14
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,172
779	MACHINE OPERATORS, NOT SPECIFIED	558	397
785	ASSEMBLERS	679	485
TOTAL		11,702	2,108

*(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.