National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name PENTANE, 2,2,4-TRIMETHYL-
CAS # 540-84-1
RTECS # SA3320000
Agent Code 81210

SIC Industry Description (1972) Total # Employees
(Male & Female)
Total # Female
Employees
28 CHEMICALS AND ALLIED PRODUCTS 63  
29 PETROLEUM AND COAL PRODUCTS 230 56
30 RUBBER AND MISC. PLASTICS PRODUCTS 57  
34 FABRICATED METAL PRODUCTS 164 41
73 BUSINESS SERVICES 5,208 1,164
80 HEALTH SERVICES 1,484 1,075
TOTAL 7,206 2,337

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) 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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