National Occupational Exposure Survey
(1981 - 1983)

Estimated Percentages of Controlled and Uncontrolled Potential Exposures to Specific Agents by Occupation within 2-Digit Standard Industrial Classification (SIC)*

Agent Name VALINE, 3-MERCAPTO-, D-
CAS # 52-67-5
RTECS # YV9425000 
Agent Code X4379

CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
073 CHEMISTS, EXCEPT BIOCHEMISTS 0.0%
0.0%
100.0%
0.0%
0.0%
228
225 SCIENCE TECHNICIANS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
326
368 WEIGHERS, MEASURERS, AND CHECKERS 0.0%
0.0%
66.7%
33.3%
0.0%
129
754 PACKAGING AND FILLING MACHINE OPERATORS 82.4%
0.0%
0.0%
17.6%
0.0%
483
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
43.6%
6.4%
43.6%
6.4%
668
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 0.0%
30.8%
0.0%
69.2%
0.0%
170
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
19.6%
60.7%
19.6%
0.0%
266
797 PRODUCTION TESTERS 0.0%
0.0%
100.0%
0.0%
0.0%
86
798 PRODUCTION SAMPLERS AND WEIGHERS 0.0%
50.0%
0.0%
50.0%
0.0%
222
888 HAND PACKERS AND PACKAGERS 0.0%
0.0%
0.0%
100.0%
0.0%
1,591
SUBTOTAL 9.5%
12.1%
22.3%
54.9%
1.0%
4,169
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
096 PHARMACISTS 53.9%
0.0%
0.0%
46.1%
0.0%
737
SUBTOTAL 53.9%
0.0%
0.0%
46.1%
0.0%
737
TOTAL 16.2%
10.3%
18.9%
53.6%
0.8%
4,906
RELATED PAGES: Estimates by SIC, Estimates by Occupation, Estimates by Occupation within SIC
ABBREVIATIONS:
Resp Prot = Respiratory Protection
Other PPE = Personal Protective Equipment Other Than Respiratory Protection
Vent = Ventilation

*(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 estimated numbers of exposures, 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. (4) For a given occupation, the estimated number of potential exposures is not necessarily equal to the estimated total number of potentially exposed workers. For example, a worker may be exposed to the same agent from multiple sources; thus, it is not the worker that is controlled but the exposure. (5) The presence or absence of controls does not imply that controls are necessary or required. The estimates and the controls are strictly based on observations associated with potential exposures.

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