Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	792	17
075	GEOLOGISTS AND GEODESISTS	28
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	114
216	ENGINEERING TECHNICIANS, N.E.C.	413
224	CHEMICAL TECHNICIANS	2,434	1,098
225	SCIENCE TECHNICIANS, N.E.C.	158
235	TECHNICIANS, N.E.C.	618	190
449	MAIDS AND HOUSEMEN	130
453	JANITORS AND CLEANERS	677
519	MACHINERY MAINTENANCE OCCUPATIONS	22
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	2,241
549	NOT SPECIFIED MECHANICS AND REPAIRERS	470
558	SUPERVISORS, N.E.C.	784
565	TILE SETTERS, HARD AND SOFT	4,832
567	CARPENTERS	630
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	44
589	GLAZIERS	2,279
593	INSULATION WORKERS	44
595	ROOFERS	3,781
596	SHEETMETAL DUCT INSTALLERS	1,520
599	CONSTRUCTION TRADES, N.E.C.	2,612
637	MACHINISTS	57
653	SHEET METAL WORKERS	522	24
669	SHOE REPAIRERS	120	120
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	66
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	26
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	574	287
734	PRINTING MACHINE OPERATORS	2,929	572
739	KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS	5,499	3,195
745	SHOE MACHINE OPERATORS	66	66
754	PACKAGING AND FILLING MACHINE OPERATORS	384
756	MIXING AND BLENDING MACHINE OPERATORS	1,785
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	306	249
769	SLICING AND CUTTING MACHINE OPERATORS	574
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	140
779	MACHINE OPERATORS, NOT SPECIFIED	717	108
785	ASSEMBLERS	1,436	1,149
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	9
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	192
869	CONSTRUCTION LABORERS	3,810
878	MACHINE FEEDERS AND OFFBEARERS	245	41
889	LABORERS, EXCEPT CONSTRUCTION	525	91
TOTAL		44,604	7,205

*(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.