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 NITRILOTRI-2-PROPANOL, 1,1',1"-
CAS # 122-20-3
RTECS # UB8750000 
Agent Code M0259

GENERAL BUILDING CONTRACTORS (SIC 15)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
567 CARPENTERS 0.0%
0.0%
100.0%
0.0%
0.0%
314
869 CONSTRUCTION LABORERS 0.0%
0.0%
100.0%
0.0%
0.0%
837
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
1,151
FOOD AND KINDRED PRODUCTS (SIC 20)
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%
440
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
440
TEXTILE MILL PRODUCTS (SIC 22)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
0.0%
0.0%
0.0%
100.0%
47
SUBTOTAL 0.0%
0.0%
0.0%
0.0%
100.0%
47
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
048 CHEMICAL ENGINEERS 0.0%
0.0%
0.0%
0.0%
100.0%
23
073 CHEMISTS, EXCEPT BIOCHEMISTS 100.0%
0.0%
0.0%
0.0%
0.0%
154
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 0.0%
0.0%
0.0%
0.0%
100.0%
19
224 CHEMICAL TECHNICIANS 73.3%
0.0%
0.0%
0.0%
26.7%
652
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 0.0%
0.0%
0.0%
0.0%
100.0%
3
575 ELECTRICIANS 0.0%
0.0%
0.0%
0.0%
100.0%
6
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
0.0%
100.0%
113
637 MACHINISTS 98.5%
0.0%
0.0%
0.0%
1.5%
416
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
64
696 STATIONARY ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
62
756 MIXING AND BLENDING MACHINE OPERATORS 0.0%
0.0%
50.0%
50.0%
0.0%
386
783 WELDERS AND CUTTERS 0.0%
0.0%
0.0%
0.0%
100.0%
19
SUBTOTAL 60.9%
0.0%
10.0%
10.0%
18.9%
1,917
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
019 MANAGERS AND ADMINISTRATORS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
14
073 CHEMISTS, EXCEPT BIOCHEMISTS 0.0%
0.0%
100.0%
0.0%
0.0%
14
224 CHEMICAL TECHNICIANS 0.0%
0.0%
100.0%
0.0%
0.0%
251
453 JANITORS AND CLEANERS 0.0%
0.0%
100.0%
0.0%
0.0%
210
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
154
SUBTOTAL 0.0%
0.0%
100.0%
0.0%
0.0%
643
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
633 SUPERVISORS, PRODUCTION OCCUPATIONS 0.0%
0.0%
0.0%
50.0%
50.0%
990
719 MOLDING AND CASTING MACHINE OPERATORS 50.0%
0.0%
0.0%
0.0%
50.0%
4,818
756 MIXING AND BLENDING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
96
SUBTOTAL 42.4%
0.0%
0.0%
8.3%
49.1%
5,904
PRIMARY METAL INDUSTRIES (SIC 33)
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%
1,374
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
576
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
31
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
1,075
SUBTOTAL 36.1%
0.0%
63.8%
0.0%
0.0%
3,056
FABRICATED METAL PRODUCTS (SIC 34)
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%
353
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
1,042
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
359
727 SAWING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
695
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
935
SUBTOTAL 48.6%
0.0%
51.3%
0.0%
0.0%
3,384
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
185 DESIGNERS 100.0%
0.0%
0.0%
0.0%
0.0%
122
216 ENGINEERING TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
116
365 STOCK AND INVENTORY CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
128
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
124
518 INDUSTRIAL MACHINERY REPAIRERS 51.8%
0.0%
0.0%
48.2%
0.0%
330
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
87
633 SUPERVISORS, PRODUCTION OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
128
634 TOOL AND DIE MAKERS 0.0%
0.0%
0.0%
100.0%
0.0%
273
636 PRECISION ASSEMBLERS, METAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,200
637 MACHINISTS 91.6%
0.0%
0.0%
8.4%
0.0%
11,245
645 PATTERNMAKERS AND MODEL MAKERS, METAL 100.0%
0.0%
0.0%
0.0%
0.0%
40
649 ENGRAVERS, METAL 100.0%
0.0%
0.0%
0.0%
0.0%
642
653 SHEET METAL WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
128
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
16
704 LATHE AND TURNING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
996
708 DRILLING AND BORING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
52
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 61.1%
0.0%
0.0%
38.9%
0.0%
1,265
723 METAL PLATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
355
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 33.3%
0.0%
66.7%
0.0%
0.0%
7,286
779 MACHINE OPERATORS, NOT SPECIFIED 13.9%
0.0%
49.6%
36.5%
0.0%
7,388
783 WELDERS AND CUTTERS 0.0%
0.0%
100.0%
0.0%
0.0%
1,699
785 ASSEMBLERS 0.0%
0.0%
91.3%
8.7%
0.0%
3,959
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 100.0%
0.0%
0.0%
0.0%
0.0%
124
SUBTOTAL 50.2%
0.0%
36.7%
13.0%
0.0%
37,703
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
119
216 ENGINEERING TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
114
365 STOCK AND INVENTORY CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
10
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
150
549 NOT SPECIFIED MECHANICS AND REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
31
575 ELECTRICIANS 0.0%
0.0%
0.0%
100.0%
0.0%
21
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
18
634 TOOL AND DIE MAKERS 100.0%
0.0%
0.0%
0.0%
0.0%
83
637 MACHINISTS 16.3%
0.0%
83.7%
0.0%
0.0%
666
644 PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS 100.0%
0.0%
0.0%
0.0%
0.0%
10
645 PATTERNMAKERS AND MODEL MAKERS, METAL 100.0%
0.0%
0.0%
0.0%
0.0%
10
708 DRILLING AND BORING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
42
723 METAL PLATING MACHINE OPERATORS 0.0%
0.0%
76.5%
23.5%
0.0%
2,551
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
83
779 MACHINE OPERATORS, NOT SPECIFIED 100.0%
0.0%
0.0%
0.0%
0.0%
42
783 WELDERS AND CUTTERS 100.0%
0.0%
0.0%
0.0%
0.0%
22
785 ASSEMBLERS 100.0%
0.0%
0.0%
0.0%
0.0%
187
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
10
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
31
SUBTOTAL 25.4%
0.0%
59.7%
14.7%
0.0%
4,200
TRANSPORTATION EQUIPMENT (SIC 37)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
045 METALLURGICAL AND MATERIALS ENGINEERS 100.0%
0.0%
0.0%
0.0%
0.0%
14
224 CHEMICAL TECHNICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
17
235 TECHNICIANS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
126
335 FILE CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
109
363 PRODUCTION COORDINATORS 100.0%
0.0%
0.0%
0.0%
0.0%
9
365 STOCK AND INVENTORY CLERKS 0.0%
0.0%
0.0%
100.0%
0.0%
11
453 JANITORS AND CLEANERS 100.0%
0.0%
0.0%
0.0%
0.0%
225
518 INDUSTRIAL MACHINERY REPAIRERS 100.0%
0.0%
0.0%
0.0%
0.0%
323
519 MACHINERY MAINTENANCE OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
36
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
440
549 NOT SPECIFIED MECHANICS AND REPAIRERS 0.0%
0.0%
100.0%
0.0%
0.0%
76
575 ELECTRICIANS 100.0%
0.0%
0.0%
0.0%
0.0%
100
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 100.0%
0.0%
0.0%
0.0%
0.0%
115
634 TOOL AND DIE MAKERS 0.0%
0.0%
53.4%
46.6%
0.0%
6,208
637 MACHINISTS 97.1%
0.0%
2.9%
0.0%
0.0%
4,645
674 MISCELLANEOUS PRECISION APPAREL AND FABRIC WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
37
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 12.6%
0.0%
50.0%
37.4%
0.0%
205
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
14
704 LATHE AND TURNING MACHINE OPERATORS 82.0%
0.0%
18.0%
0.0%
0.0%
995
708 DRILLING AND BORING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
24
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 0.0%
0.0%
95.1%
4.9%
0.0%
2,094
758 COMPRESSING AND COMPACTING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
413
769 SLICING AND CUTTING MACHINE OPERATORS 0.0%
0.0%
100.0%
0.0%
0.0%
282
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 78.7%
0.0%
21.3%
0.0%
0.0%
451
779 MACHINE OPERATORS, NOT SPECIFIED 73.1%
0.0%
13.4%
13.4%
0.0%
326
785 ASSEMBLERS 94.5%
0.0%
5.5%
0.0%
0.0%
554
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 100.0%
0.0%
0.0%
0.0%
0.0%
9
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
687
873 PRODUCTION HELPERS 0.0%
0.0%
100.0%
0.0%
0.0%
3
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 86.9%
0.0%
13.1%
0.0%
0.0%
26
SUBTOTAL 46.9%
0.0%
36.1%
16.8%
0.0%
18,574
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
235 TECHNICIANS, N.E.C. 0.0%
0.0%
100.0%
0.0%
0.0%
4,053
519 MACHINERY MAINTENANCE OCCUPATIONS 100.0%
0.0%
0.0%
0.0%
0.0%
44
637 MACHINISTS 100.0%
0.0%
0.0%
0.0%
0.0%
645
677 OPTICAL GOODS WORKERS 100.0%
0.0%
0.0%
0.0%
0.0%
156
723 METAL PLATING MACHINE OPERATORS 4.9%
4.9%
90.3%
0.0%
0.0%
4,533
785 ASSEMBLERS 50.0%
0.0%
50.0%
0.0%
0.0%
695
SUBTOTAL 13.9%
2.1%
83.8%
0.0%
0.0%
10,126
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
365 STOCK AND INVENTORY CLERKS 100.0%
0.0%
0.0%
0.0%
0.0%
488
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
855
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
1,343
TRUCKING AND WAREHOUSING (SIC 42)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
723 METAL PLATING MACHINE OPERATORS 100.0%
0.0%
0.0%
0.0%
0.0%
607
SUBTOTAL 100.0%
0.0%
0.0%
0.0%
0.0%
607
WHOLESALE TRADE - DURABLE GOODS (SIC 50)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
505 AUTOMOBILE MECHANICS 0.0%
0.0%
0.0%
100.0%
0.0%
485
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 100.0%
0.0%
0.0%
0.0%
0.0%
398
SUBTOTAL 45.0%
0.0%
0.0%
54.9%
0.0%
883
HEALTH SERVICES (SIC 80)
Code Occupation Description (1980) No
Control
Resp
Prot
Other
PPE

Vent
Other
Control

Exposures
446 HEALTH AIDES, EXCEPT NURSING 100.0%
0.0%
0.0%
0.0%
0.0%
1,626
453 JANITORS AND CLEANERS 0.0%
0.0%
66.7%
33.3%
0.0%
479
SUBTOTAL 77.2%
0.0%
15.1%
7.5%
0.0%
2,105
TOTAL 44.5%
0.2%
40.7%
10.8%
3.5%
92,083
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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