| Agent Name | MANGANESE ALLOY, MN 65-68,FE 10-23,SI 12-21,C 0.5-3,P 0-0.2 (ASTM A483) |
| CAS # | 12743-28-1 |
| RTECS # | |
| Agent Code | X4540 |
| 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% |
1,129 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,563 |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
50.0% |
50.0% |
0.0% |
2,185 |
| SUBTOTAL | 55.1% |
0.0% |
22.4% |
22.4% |
0.0% |
4,877 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 706 | PUNCHING AND STAMPING PRESS MACHINE OPERATORS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
3,554 |
| 725 | MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
1,136 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
407 |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
373 |
| 785 | ASSEMBLERS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
51 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
388 |
| SUBTOTAL | 33.5% |
0.0% |
66.4% |
0.0% |
0.0% |
5,909 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 563 | BRICKMASONS AND STONEMASONS | 0.0% |
0.0% |
0.0% |
100.0% |
0.0% |
380 |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 0.0% |
0.0% |
66.7% |
33.3% |
0.0% |
7,845 |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
15,088 |
| 849 | CRANE AND TOWER OPERATORS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
1,987 |
| SUBTOTAL | 0.0% |
0.0% |
88.1% |
11.8% |
0.0% |
25,300 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 596 | SHEETMETAL DUCT INSTALLERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
124 |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 100.0% |
0.0% |
0.0% |
0.0% |
0.0% |
37 |
| 783 | WELDERS AND CUTTERS | 7.9% |
0.0% |
84.3% |
5.9% |
1.8% |
19,547 |
| SUBTOTAL | 8.0% |
0.0% |
84.2% |
5.8% |
1.7% |
19,708 | |
| Code | Occupation Description (1980) | No Control |
Resp Prot |
Other PPE |
Vent |
Other Control |
Exposures |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
73.1% |
26.9% |
0.0% |
2,424 |
| 785 | ASSEMBLERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
834 |
| SUBTOTAL | 0.0% |
0.0% |
79.9% |
20.0% |
0.0% |
3,258 | |
| 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% |
109 |
| 783 | WELDERS AND CUTTERS | 0.0% |
0.0% |
100.0% |
0.0% |
0.0% |
657 |
| SUBTOTAL | 14.2% |
0.0% |
85.7% |
0.0% |
0.0% |
766 | |
| TOTAL | 10.6% |
0.0% |
78.8% |
9.8% |
0.5% |
59,818 | |
| 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.