| Agent Name | CU.ZN, BRASS-MF UNKNOWN |
| CAS # | 12597-71-6 |
| RTECS # | |
| Agent Code | X8658 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 005 | ADMINISTRATORS AND OFFICIALS, PUBLIC ADMINISTRATION | 14 | 3 |
| 019 | MANAGERS AND ADMINISTRATORS, N.E.C. | 116 | |
| 027 | PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS | 516 | |
| 045 | METALLURGICAL AND MATERIALS ENGINEERS | 20 | |
| 055 | ELECTRICAL AND ELECTRONIC ENGINEERS | 14 | |
| 059 | ENGINEERS, N.E.C. | 308 | |
| 188 | PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS | 173 | 74 |
| 206 | RADIOLOGIC TECHNICIANS | 83 | |
| 213 | ELECTRICAL AND ELECTRONIC TECHNICIANS | 40 | 3 |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 40 | 13 |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 119 | 24 |
| 235 | TECHNICIANS, N.E.C. | 1,196 | 852 |
| 363 | PRODUCTION COORDINATORS | 262 | |
| 364 | TRAFFIC, SHIPPING, AND RECEIVING CLERKS | 5,641 | 175 |
| 365 | STOCK AND INVENTORY CLERKS | 1,989 | 408 |
| 453 | JANITORS AND CLEANERS | 7,588 | 76 |
| 503 | SUPERVISORS, MECHANICS AND REPAIRERS | 65 | |
| 505 | AUTOMOBILE MECHANICS | 5,597 | |
| 514 | AUTOMOBILE BODY AND RELATED REPAIRERS | 55 | |
| 516 | HEAVY EQUIPMENT MECHANICS | 668 | |
| 518 | INDUSTRIAL MACHINERY REPAIRERS | 423 | |
| 519 | MACHINERY MAINTENANCE OCCUPATIONS | 60 | |
| 544 | MILLWRIGHTS | 500 | |
| 547 | SPECIFIED MECHANICS AND REPAIRERS, N.E.C. | 24 | |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 3,768 | |
| 567 | CARPENTERS | 4,331 | |
| 575 | ELECTRICIANS | 5,704 | |
| 579 | PAINTERS, CONSTRUCTION AND MAINTENANCE | 103 | |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 18 | |
| 596 | SHEETMETAL DUCT INSTALLERS | 395 | 17 |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 1,654 | |
| 634 | TOOL AND DIE MAKERS | 5,844 | |
| 636 | PRECISION ASSEMBLERS, METAL | 1,200 | 81 |
| 637 | MACHINISTS | 59,200 | 3,551 |
| 639 | MACHINIST APPRENTICES | 643 | |
| 647 | PRECIOUS STONES AND METALS WORKERS (JEWELERS) | 222 | 148 |
| 649 | ENGRAVERS, METAL | 852 | 273 |
| 653 | SHEET METAL WORKERS | 903 | |
| 676 | PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS | 190 | |
| 678 | DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS | 53 | |
| 684 | MISCELLANEOUS PRECISION WORKERS, N.E.C. | 13,894 | 1,617 |
| 696 | STATIONARY ENGINEERS | 29 | |
| 703 | LATHE AND TURNING MACHINE SET-UP OPERATORS | 390 | |
| 704 | LATHE AND TURNING MACHINE OPERATORS | 7,506 | 167 |
| 705 | MILLING AND PLANING MACHINE OPERATORS | 1,621 | 1,116 |
| 706 | PUNCHING AND STAMPING PRESS MACHINE OPERATORS | 2,221 | 245 |
| 707 | ROLLING MACHINE OPERATORS | 583 | |
| 708 | DRILLING AND BORING MACHINE OPERATORS | 1,711 | 183 |
| 709 | GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS | 8,996 | 1,331 |
| 713 | FORGING MACHINE OPERATORS | 2,581 | |
| 715 | MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS | 1,156 | 22 |
| 717 | FABRICATING MACHINE OPERATORS, N.E.C. | 338 | |
| 719 | MOLDING AND CASTING MACHINE OPERATORS | 3,152 | 174 |
| 723 | METAL PLATING MACHINE OPERATORS | 3,236 | 1,006 |
| 724 | HEAT TREATING EQUIPMENT OPERATORS | 40 | |
| 725 | MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS | 130 | |
| 727 | SAWING MACHINE OPERATORS | 653 | 22 |
| 734 | PRINTING MACHINE OPERATORS | 1,999 | 500 |
| 736 | TYPESETTERS AND COMPOSITORS | 999 | |
| 744 | TEXTILE SEWING MACHINE OPERATORS | 80 | |
| 755 | EXTRUDING AND FORMING MACHINE OPERATORS | 1,121 | |
| 757 | SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS | 66 | |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 147 | |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 1,552 | 8 |
| 769 | SLICING AND CUTTING MACHINE OPERATORS | 1,315 | 23 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 10,930 | 810 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 12,783 | 1,855 |
| 783 | WELDERS AND CUTTERS | 1,380 | 71 |
| 784 | SOLDERERS AND BRAZERS | 436 | |
| 785 | ASSEMBLERS | 13,317 | 6,135 |
| 787 | HAND MOLDING, CASTING, AND FORMING OCCUPATIONS | 619 | 180 |
| 794 | HAND GRINDING AND POLISHING OCCUPATIONS | 4,565 | 415 |
| 796 | PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS | 272 | |
| 797 | PRODUCTION TESTERS | 13 | |
| 849 | CRANE AND TOWER OPERATORS | 7 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 26 | 6 |
| 869 | CONSTRUCTION LABORERS | 2,052 | |
| 887 | VEHICLE WASHERS AND EQUIPMENT CLEANERS | 128 | 64 |
| 888 | HAND PACKERS AND PACKAGERS | 808 | 596 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 5,964 | 1,034 |
| TOTAL | 219,404 | 23,277 | |
*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, 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.