PRINTING AND PUBLISHING (SIC 27)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	500
735	PHOTOENGRAVERS AND LITHOGRAPHERS	100.0%	0.0%	0.0%	0.0%	0.0%	217
736	TYPESETTERS AND COMPOSITORS	100.0%	0.0%	0.0%	0.0%	0.0%	1,935
737	MISCELLANEOUS PRINTING MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	462
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	3,114
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
224	CHEMICAL TECHNICIANS	100.0%	0.0%	0.0%	0.0%	0.0%	240
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	240
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
073	CHEMISTS, EXCEPT BIOCHEMISTS	0.0%	0.0%	100.0%	0.0%	0.0%	322
SUBTOTAL		0.0%	0.0%	100.0%	0.0%	0.0%	322
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
633	SUPERVISORS, PRODUCTION OCCUPATIONS	0.0%	0.0%	100.0%	0.0%	0.0%	57
723	METAL PLATING MACHINE OPERATORS	0.0%	0.0%	100.0%	0.0%	0.0%	1,377
SUBTOTAL		0.0%	0.0%	100.0%	0.0%	0.0%	1,434
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
216	ENGINEERING TECHNICIANS, N.E.C.	0.0%	0.0%	0.0%	100.0%	0.0%	41
SUBTOTAL		0.0%	0.0%	0.0%	100.0%	0.0%	41
TRANSPORTATION EQUIPMENT (SIC 37)
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%	14
774	PHOTOGRAPHIC PROCESS MACHINE OPERATORS	100.0%	0.0%	0.0%	0.0%	0.0%	101
SUBTOTAL		100.0%	0.0%	0.0%	0.0%	0.0%	115
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
723	METAL PLATING MACHINE OPERATORS	0.0%	0.0%	0.0%	100.0%	0.0%	191
SUBTOTAL		0.0%	0.0%	0.0%	100.0%	0.0%	191
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
216	ENGINEERING TECHNICIANS, N.E.C.	0.0%	0.0%	50.0%	50.0%	0.0%	7
723	METAL PLATING MACHINE OPERATORS	0.0%	0.0%	66.7%	33.3%	0.0%	382
SUBTOTAL		0.0%	0.0%	66.3%	33.6%	0.0%	389
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	No Control	Resp Prot	Other PPE	Vent	Other Control	Exposures
075	GEOLOGISTS AND GEODESISTS	0.0%	0.0%	50.0%	50.0%	0.0%	56
216	ENGINEERING TECHNICIANS, N.E.C.	0.0%	0.0%	66.7%	33.3%	0.0%	21
225	SCIENCE TECHNICIANS, N.E.C.	0.0%	0.0%	33.3%	33.3%	33.3%	436
677	OPTICAL GOODS WORKERS	0.0%	0.0%	50.0%	50.0%	0.0%	84
SUBTOTAL		0.0%	0.0%	38.3%	37.2%	24.3%	597
TOTAL		53.8%	0.0%	34.8%	9.0%	2.2%	6,443
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.