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 PHENYL-PARA-PHENYLENEDIAMINE, N-
CAS # 101-54-2
RTECS # ST3150000 
Agent Code 83649

PETROLEUM AND COAL PRODUCTS (SIC 29)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
35
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
42
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
28
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
105
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
199
719 MOLDING AND CASTING MACHINE OPERATORS 0.0%
0.0%
0.0%
100.0%
0.0%
416
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
0.0%
18.8%
81.2%
0.0%
512
779 MACHINE OPERATORS, NOT SPECIFIED 0.0%
0.0%
100.0%
0.0%
0.0%
78
SUBTOTAL 16.5%
0.0%
14.4%
69.0%
0.0%
1,205
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
637 MACHINISTS 0.0%
0.0%
100.0%
0.0%
0.0%
1,763
708 DRILLING AND BORING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
354
785 ASSEMBLERS 0.0%
0.0%
100.0%
0.0%
0.0%
878
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
2,995
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
083 MEDICAL SCIENTISTS 100.0%
0.0%
0.0%
0.0%
0.0%
52
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
52
TOTAL 8.1%
0.0%
72.7%
19.0%
0.0%
4,357
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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