FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
779	MACHINE OPERATORS, NOT SPECIFIED	0.0%	0.0%	0.0%	0.0%	100.0%	2,606
SUBTOTAL		0.0%	0.0%	0.0%	0.0%	100.0%	2,606
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
225	SCIENCE TECHNICIANS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	58
315	TYPISTS	100.0%	0.0%	0.0%	0.0%	0.0%	72
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	86
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	403
575	ELECTRICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	144
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	100.0%	0.0%	0.0%	0.0%	0.0%	576
719	MOLDING AND CASTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	274
756	MIXING AND BLENDING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	14
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	29
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	100.0%	0.0%	0.0%	0.0%	0.0%	101
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	303
783	WELDERS AND CUTTERS	100.0%	0.0%	0.0%	0.0%	0.0%	72
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	2,132
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
544	MILLWRIGHTS	100.0%	0.0%	0.0%	0.0%	0.0%	153
719	MOLDING AND CASTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	1,232
889	LABORERS, EXCEPT CONSTRUCTION	100.0%	0.0%	0.0%	0.0%	0.0%	354
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	1,739
TOTAL		59.7%	0.0%	0.0%	0.0%	40.2%	6,477
RELATED PAGES: Estimates by SIC, Estimates by Occupation, Estimates by Occupation within SIC
ABBREVIATIONS: Resp Prot = Respiratory Protection Other PPE = Personal Protective Equipment Other Than Respiratory Protection Vent = Ventilation

*(1) The estimates for each occupation apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC where the agent was observed. Not all SICs were surveyed, and not all agents were observed in all surveyed SICs. (2) When using the estimated numbers of exposures, 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. (4) For a given occupation, the estimated number of potential exposures is not necessarily equal to the estimated total number of potentially exposed workers. For example, a worker may be exposed to the same agent from multiple sources; thus, it is not the worker that is controlled but the exposure. (5) The presence or absence of controls does not imply that controls are necessary or required. The estimates and the controls are strictly based on observations associated with potential exposures.