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 HYDANTOIN, 1,3-DICHLORO-5,5-DIMETHYL-
CAS # 118-52-5
RTECS # MU0700000 
Agent Code 24100

FOOD AND KINDRED PRODUCTS (SIC 20)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 14

SUBTOTAL 14

TEXTILE MILL PRODUCTS (SIC 22)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
453 JANITORS AND CLEANERS 180

SUBTOTAL 180

PRIMARY METAL INDUSTRIES (SIC 33)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 307

SUBTOTAL 307

FABRICATED METAL PRODUCTS (SIC 34)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
216 ENGINEERING TECHNICIANS, N.E.C. 27
27
SUBTOTAL 27
27
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 3

696 STATIONARY ENGINEERS 2

SUBTOTAL 5

TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
695 POWER PLANT OPERATORS 234

SUBTOTAL 234

INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
785 ASSEMBLERS 174

SUBTOTAL 174

PERSONAL SERVICES (SIC 72)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
747 PRESSING MACHINE OPERATORS 439
220
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 659
439
SUBTOTAL 1,098
659
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 180
160
365 STOCK AND INVENTORY CLERKS 140
100
696 STATIONARY ENGINEERS 12

748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 1,131
834
SUBTOTAL 1,463
1,094
TOTAL 3,502 1,780
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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