SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
596	SHEETMETAL DUCT INSTALLERS	873
SUBTOTAL		873
FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	121
SUBTOTAL		121
LUMBER AND WOOD PRODUCTS (SIC 24)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	36
SUBTOTAL		36
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	26
SUBTOTAL		26
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	625
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	58
SUBTOTAL		683
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
645	PATTERNMAKERS AND MODEL MAKERS, METAL	139
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	14
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	495	185
SUBTOTAL		648	185
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	71
785	ASSEMBLERS	21
SUBTOTAL		92
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	251
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	55
696	STATIONARY ENGINEERS	45
SUBTOTAL		351
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	945
SUBTOTAL		945
WHOLESALE TRADE - NONDURABLE GOODS (SIC 51)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	666
SUBTOTAL		666
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	1,598
633	SUPERVISORS, PRODUCTION OCCUPATIONS	133
SUBTOTAL		1,731
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	242
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	77
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	246
SUBTOTAL		565
TOTAL		6,737	185
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.