FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	249
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	249
TEXTILE MILL PRODUCTS (SIC 22)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
453	JANITORS AND CLEANERS	100.0%	0.0%	0.0%	0.0%	0.0%	319
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	319
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	100.0%	0.0%	0.0%	0.0%	0.0%	1,075
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	1,075
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
634	TOOL AND DIE MAKERS	100.0%	0.0%	0.0%	0.0%	0.0%	67
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	0.0%	0.0%	0.0%	0.0%	100.0%	1,181
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	359
779	MACHINE OPERATORS, NOT SPECIFIED	100.0%	0.0%	0.0%	0.0%	0.0%	123
785	ASSEMBLERS	100.0%	0.0%	0.0%	0.0%	0.0%	145
SUBTOTAL		37.0%	0.0%	0.0%	0.0%	62.9%	1,875
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
073	CHEMISTS, EXCEPT BIOCHEMISTS	0.0%	0.0%	50.0%	50.0%	0.0%	384
453	JANITORS AND CLEANERS	0.0%	0.0%	50.0%	50.0%	0.0%	5,250
637	MACHINISTS	100.0%	0.0%	0.0%	0.0%	0.0%	810
708	DRILLING AND BORING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	125
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2.6%	0.0%	48.7%	48.7%	0.0%	2,694
779	MACHINE OPERATORS, NOT SPECIFIED	100.0%	0.0%	0.0%	0.0%	0.0%	25
785	ASSEMBLERS	100.0%	0.0%	0.0%	0.0%	0.0%	249
SUBTOTAL		13.4%	0.0%	43.2%	43.2%	0.0%	9,537
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
637	MACHINISTS	100.0%	0.0%	0.0%	0.0%	0.0%	470
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	100.0%	0.0%	0.0%	0.0%	0.0%	42
705	MILLING AND PLANING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	18
769	SLICING AND CUTTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	14
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	100.0%	0.0%	0.0%	0.0%	0.0%	2
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	546
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
044	AEROSPACE ENGINEERS	100.0%	0.0%	0.0%	0.0%	0.0%	85
637	MACHINISTS	100.0%	0.0%	0.0%	0.0%	0.0%	1,843
724	HEAT TREATING EQUIPMENT OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	74
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	22
797	PRODUCTION TESTERS	100.0%	0.0%	0.0%	0.0%	0.0%	147
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	2,171
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	0.0%	0.0%	100.0%	0.0%	0.0%	24
SUBTOTAL		0.0%	0.0%	100.0%	0.0%	0.0%	24
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
675	HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS	100.0%	0.0%	0.0%	0.0%	0.0%	359
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	359
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
515	AIRCRAFT MECHANICS, EXC. ENGINE	0.0%	0.0%	0.0%	0.0%	100.0%	62
637	MACHINISTS	0.0%	0.0%	100.0%	0.0%	0.0%	505
SUBTOTAL		0.0%	0.0%	89.0%	0.0%	10.9%	567
TOTAL		40.0%	0.0%	27.8%	24.6%	7.4%	16,722
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.