CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
225	SCIENCE TECHNICIANS, N.E.C.	0.0%	0.0%	0.0%	100.0%	0.0%	141
453	JANITORS AND CLEANERS	0.0%	0.0%	0.0%	100.0%	0.0%	189
719	MOLDING AND CASTING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	47
755	EXTRUDING AND FORMING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	1,273
889	LABORERS, EXCEPT CONSTRUCTION	0.0%	0.0%	0.0%	100.0%	0.0%	1,273
SUBTOTAL		0.0%	0.0%	0.0%	100.0%	0.0%	2,923
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
755	EXTRUDING AND FORMING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	5,999
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	133
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	6,132
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
633	SUPERVISORS, PRODUCTION OCCUPATIONS	100.0%	0.0%	0.0%	0.0%	0.0%	185
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	0.0%	0.0%	0.0%	100.0%	0.0%	232
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	556
719	MOLDING AND CASTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	1,667
785	ASSEMBLERS	100.0%	0.0%	0.0%	0.0%	0.0%	617
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	100.0%	0.0%	0.0%	0.0%	0.0%	123
SUBTOTAL		93.1%	0.0%	0.0%	6.8%	0.0%	3,380
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	69
719	MOLDING AND CASTING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	86
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	0.0%	0.0%	50.0%	50.0%	0.0%	24
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	46
SUBTOTAL		0.0%	0.0%	5.3%	94.6%	0.0%	225
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
335	FILE CLERKS	100.0%	0.0%	0.0%	0.0%	0.0%	92
453	JANITORS AND CLEANERS	75.0%	0.0%	25.0%	0.0%	0.0%	122
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	31
719	MOLDING AND CASTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	1,516
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	50.0%	0.0%	50.0%	0.0%	0.0%	1,129
SUBTOTAL		79.4%	0.0%	20.5%	0.0%	0.0%	2,890
WHOLESALE TRADE - NONDURABLE GOODS (SIC 51)
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%	1,185
633	SUPERVISORS, PRODUCTION OCCUPATIONS	100.0%	0.0%	0.0%	0.0%	0.0%	1,185
889	LABORERS, EXCEPT CONSTRUCTION	100.0%	0.0%	0.0%	0.0%	0.0%	3,791
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	6,161
TOTAL		81.6%	0.0%	2.7%	15.5%	0.0%	21,711
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.