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 IMIDAZOLIDINYL UREA
CAS # 39236-46-9
RTECS # YT7365000 
Agent Code X4906

SPECIAL TRADE CONTRACTORS (SIC 17)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
595 ROOFERS 0.0%
0.0%
100.0%
0.0%
0.0%
1,851
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
1,851
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
756 MIXING AND BLENDING MACHINE OPERATORS 94.8%
0.0%
5.2%
0.0%
0.0%
3,678
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
33,682
SUBTOTAL 99.4%
0.0%
0.5%
0.0%
0.0%
37,360
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
073 CHEMISTS, EXCEPT BIOCHEMISTS 100.0%
0.0%
0.0%
0.0%
0.0%
7
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
293
224 CHEMICAL TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
223
225 SCIENCE TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
189
505 AUTOMOBILE MECHANICS 100.0%
0.0%
0.0%
0.0%
0.0%
56
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
70
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
279
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
168
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
14
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
419
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
77
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,795
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
1,069
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,069
PERSONAL SERVICES (SIC 72)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
458 HAIRDRESSERS AND COSMETOLOGISTS 54.6%
0.0%
23.2%
22.2%
0.0%
20,531
SUBTOTAL 54.5%
0.0%
23.2%
22.2%
0.0%
20,531
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
083 MEDICAL SCIENTISTS 0.0%
0.0%
100.0%
0.0%
0.0%
112
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 100.0%
0.0%
0.0%
0.0%
0.0%
1,824
SUBTOTAL 94.2%
0.0%
5.7%
0.0%
0.0%
1,936
TOTAL 82.2%
0.0%
10.7%
7.0%
0.0%
64,542
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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