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 CYSTEINE, L-, HYDROCHLORIDE
CAS # 52-89-1
RTECS # HA2275000 
Agent Code 81863

BUSINESS SERVICES (SIC 73)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 1,186
830
SUBTOTAL 1,186
830
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
078 BIOLOGICAL AND LIFE SCIENTISTS 322
239
083 MEDICAL SCIENTISTS 288
201
096 PHARMACISTS 340
180
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 4,239
3,169
223 BIOLOGICAL TECHNICIANS 174
148
446 HEALTH AIDES, EXCEPT NURSING 760
512
449 MAIDS AND HOUSEMEN 34
34
SUBTOTAL 6,157
4,483
TOTAL 7,343 5,313
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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