National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation within 2-Digit Standard Industrial Classification (SIC)*

Agent Name W, TUNGSTEN-PURE
CAS # 7440-33-7
RTECS # YO7175000 
Agent Code X5928

PRIMARY METAL INDUSTRIES (SIC 33)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 126

SUBTOTAL 126

ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
453 JANITORS AND CLEANERS 259

633 SUPERVISORS, PRODUCTION OCCUPATIONS 466
233
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 130
130
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 1,477
751
785 ASSEMBLERS 181
104
SUBTOTAL 2,513
1,218
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
057 MECHANICAL ENGINEERS 383
14
515 AIRCRAFT MECHANICS, EXC. ENGINE 567
21
637 MACHINISTS 85

706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 210
6
783 WELDERS AND CUTTERS 22

SUBTOTAL 1,267
41
TOTAL 3,906 1,259
RELATED PAGES: Estimates by SIC, Estimates by Occupation

*(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 estimates, 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.

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