National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name DICALCIUM SILICATE
CAS # 10034-77-2
RTECS #
Agent Code 83277

SIC Industry Description (1972) Total # Employees
(Male & Female)		 Total # Female
Employees
13 OIL AND GAS EXTRACTION 6,111  
15 GENERAL BUILDING CONTRACTORS 17,031  
16 HEAVY CONSTRUCTION CONTRACTORS 5,098  
17 SPECIAL TRADE CONTRACTORS 23,910  
20 FOOD AND KINDRED PRODUCTS 33  
24 LUMBER AND WOOD PRODUCTS 359 45
32 STONE, CLAY, AND GLASS PRODUCTS 6,837 419
33 PRIMARY METAL INDUSTRIES 852  
34 FABRICATED METAL PRODUCTS 689  
49 ELECTRIC, GAS, AND SANITARY SERVICES 3,250  
80 HEALTH SERVICES 18  
TOTAL 64,188 464

*(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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