Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
095	REGISTERED NURSES	105	82
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	63	13
235	TECHNICIANS, N.E.C.	37
365	STOCK AND INVENTORY CLERKS	115
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	1,462
453	JANITORS AND CLEANERS	8,328
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	622
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	13,289
549	NOT SPECIFIED MECHANICS AND REPAIRERS	593
558	SUPERVISORS, N.E.C.	122
565	TILE SETTERS, HARD AND SOFT	1,188
567	CARPENTERS	122
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	17,475
588	CONCRETE AND TERRAZZO FINISHERS	122
599	CONSTRUCTION TRADES, N.E.C.	1,004
617	MINING OCCUPATIONS, N.E.C.	12,132
633	SUPERVISORS, PRODUCTION OCCUPATIONS	175
657	CABINET MAKERS AND BENCH CARPENTERS	526
696	STATIONARY ENGINEERS	23
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	34	11
779	MACHINE OPERATORS, NOT SPECIFIED	488
783	WELDERS AND CUTTERS	556
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	26
869	CONSTRUCTION LABORERS	5,899
TOTAL		64,506	106

*(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.