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 SILANE, TRICHLOROMETHYL-
CAS # 75-79-6
RTECS # VV4550000 
Agent Code 83302

CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 51
4
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 166
4
SUBTOTAL 217
8
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
717 FABRICATING MACHINE OPERATORS, N.E.C. 118
59
765 FOLDING MACHINE OPERATORS 769
710
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 59
59
785 ASSEMBLERS 592
355
SUBTOTAL 1,538
1,183
TOTAL 1,755 1,191
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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