National Occupational Exposure Survey
(1981 - 1983)

Estimated Percentages of Controlled and Uncontrolled Potential Exposures to Specific Agents by Occupation within 2-Digit Standard Industrial Classification (SIC)*

Agent Name W, TUNGSTEN POWDER-MF UNKNOWN
CAS # 7440-33-7
RTECS # YO7175000 
Agent Code X7685

STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
073 CHEMISTS, EXCEPT BIOCHEMISTS 100.0%
0.0%
0.0%
0.0%
0.0%
38
717 FABRICATING MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
5
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
120
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
5
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
168
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
269
073 CHEMISTS, EXCEPT BIOCHEMISTS 0.0%
0.0%
100.0%
0.0%
0.0%
24
224 CHEMICAL TECHNICIANS 0.0%
0.0%
100.0%
0.0%
0.0%
6
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
787
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
285
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
637
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 100.0%
0.0%
0.0%
0.0%
0.0%
403
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
104
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
403
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
181
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 100.0%
0.0%
0.0%
0.0%
0.0%
269
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
1,479
SUBTOTAL 99.3%
0.0%
0.6%
0.0%
0.0%
4,847
TRANSPORTATION BY AIR (SIC 45)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
723 METAL PLATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
65
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
65
TOTAL 99.4%
0.0%
0.5%
0.0%
0.0%
5,080
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.

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