Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	4,131	53
503	SUPERVISORS, MECHANICS AND REPAIRERS	217
514	AUTOMOBILE BODY AND RELATED REPAIRERS	1,560
516	HEAVY EQUIPMENT MECHANICS	305
518	INDUSTRIAL MACHINERY REPAIRERS	11
519	MACHINERY MAINTENANCE OCCUPATIONS	330	26
544	MILLWRIGHTS	244
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	382
549	NOT SPECIFIED MECHANICS AND REPAIRERS	665
563	BRICKMASONS AND STONEMASONS	142
575	ELECTRICIANS	2,095
734	PRINTING MACHINE OPERATORS	384
756	MIXING AND BLENDING MACHINE OPERATORS	199
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	4,298	153
779	MACHINE OPERATORS, NOT SPECIFIED	431	330
783	WELDERS AND CUTTERS	1,728
784	SOLDERERS AND BRAZERS	19
785	ASSEMBLERS	3,233	1,619
TOTAL		20,371	2,181

*(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.