Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
365	STOCK AND INVENTORY CLERKS	6
518	INDUSTRIAL MACHINERY REPAIRERS	97
563	BRICKMASONS AND STONEMASONS	32
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	518
756	MIXING AND BLENDING MACHINE OPERATORS	1,130
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	321
779	MACHINE OPERATORS, NOT SPECIFIED	64
849	CRANE AND TOWER OPERATORS	114
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	106
889	LABORERS, EXCEPT CONSTRUCTION	1,520
TOTAL		3,908

*(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.