| Agent Name | POLYISOBUTENE |
| CAS # | 9003-27-4 |
| RTECS # | |
| Agent Code | T1557 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 019 | MANAGERS AND ADMINISTRATORS, N.E.C. | 135 | |
| 027 | PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS | 305 | |
| 056 | INDUSTRIAL ENGINEERS | 16 | |
| 059 | ENGINEERS, N.E.C. | 61 | |
| 078 | BIOLOGICAL AND LIFE SCIENTISTS | 636 | 212 |
| 083 | MEDICAL SCIENTISTS | 699 | 518 |
| 095 | REGISTERED NURSES | 5,904 | 799 |
| 103 | PHYSICAL THERAPISTS | 176 | 176 |
| 185 | DESIGNERS | 532 | 70 |
| 188 | PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS | 190 | 63 |
| 203 | CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS | 2,729 | 2,172 |
| 207 | LICENSED PRACTICAL NURSES | 63 | 63 |
| 208 | HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. | 144 | 80 |
| 213 | ELECTRICAL AND ELECTRONIC TECHNICIANS | 195 | 36 |
| 215 | MECHANICAL ENGINEERING TECHNICIANS | 625 | |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 25 | 7 |
| 224 | CHEMICAL TECHNICIANS | 44 | |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 14 | |
| 235 | TECHNICIANS, N.E.C. | 660 | 10 |
| 335 | FILE CLERKS | 109 | |
| 356 | MAIL CLERKS, EXC. POSTAL SERVICE | 1,226 | 350 |
| 364 | TRAFFIC, SHIPPING, AND RECEIVING CLERKS | 376 | |
| 365 | STOCK AND INVENTORY CLERKS | 576 | |
| 389 | ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C. | 52 | |
| 446 | HEALTH AIDES, EXCEPT NURSING | 1,906 | 1,594 |
| 447 | NURSING AIDES, ORDERLIES, AND ATTENDANTS | 39 | |
| 449 | MAIDS AND HOUSEMEN | 34 | 34 |
| 453 | JANITORS AND CLEANERS | 49,875 | 1,877 |
| 496 | TIMBER CUTTING AND LOGGING OCCUPATIONS | 269 | |
| 503 | SUPERVISORS, MECHANICS AND REPAIRERS | 2,429 | |
| 505 | AUTOMOBILE MECHANICS | 9,265 | |
| 507 | BUS, TRUCK, AND STATIONARY ENGINE MECHANICS | 7,681 | 8 |
| 508 | AIRCRAFT ENGINE MECHANICS | 6,707 | 57 |
| 514 | AUTOMOBILE BODY AND RELATED REPAIRERS | 5,013 | |
| 515 | AIRCRAFT MECHANICS, EXC. ENGINE | 4,032 | |
| 516 | HEAVY EQUIPMENT MECHANICS | 6,116 | 75 |
| 518 | INDUSTRIAL MACHINERY REPAIRERS | 7,473 | 86 |
| 519 | MACHINERY MAINTENANCE OCCUPATIONS | 4,633 | 37 |
| 526 | HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS | 35 | |
| 534 | HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS | 62 | |
| 543 | ELEVATOR INSTALLERS AND REPAIRERS | 25 | |
| 544 | MILLWRIGHTS | 6,169 | |
| 547 | SPECIFIED MECHANICS AND REPAIRERS, N.E.C. | 1,922 | 4 |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 13,195 | 118 |
| 558 | SUPERVISORS, N.E.C. | 326 | |
| 563 | BRICKMASONS AND STONEMASONS | 142 | |
| 567 | CARPENTERS | 369 | |
| 575 | ELECTRICIANS | 12,678 | |
| 576 | ELECTRICIAN APPRENTICES | 368 | |
| 577 | ELECTRICAL POWER INSTALLERS AND REPAIRERS | 933 | |
| 579 | PAINTERS, CONSTRUCTION AND MAINTENANCE | 113 | |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 1,205 | |
| 589 | GLAZIERS | 2,873 | |
| 593 | INSULATION WORKERS | 633 | |
| 597 | STRUCTURAL METAL WORKERS | 1,367 | |
| 599 | CONSTRUCTION TRADES, N.E.C. | 671 | |
| 613 | SUPERVISORS, EXTRACTIVE OCCUPATIONS | 178 | |
| 614 | DRILLERS, OIL WELL | 6,840 | |
| 617 | MINING OCCUPATIONS, N.E.C. | 355 | |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 1,853 | |
| 634 | TOOL AND DIE MAKERS | 4,238 | |
| 635 | TOOL AND DIE MAKER APPRENTICES | 584 | |
| 637 | MACHINISTS | 72,796 | 2,925 |
| 639 | MACHINIST APPRENTICES | 782 | |
| 643 | BOILERMAKERS | 40 | |
| 645 | PATTERNMAKERS AND MODEL MAKERS, METAL | 1,193 | 852 |
| 647 | PRECIOUS STONES AND METALS WORKERS (JEWELERS) | 1,505 | 1,505 |
| 649 | ENGRAVERS, METAL | 12 | |
| 653 | SHEET METAL WORKERS | 749 | 200 |
| 655 | MISCELLANEOUS PRECISION METAL WORKERS | 253 | 130 |
| 676 | PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS | 158 | |
| 683 | ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS | 30 | 21 |
| 684 | MISCELLANEOUS PRECISION WORKERS, N.E.C. | 8,431 | 945 |
| 695 | POWER PLANT OPERATORS | 185 | 14 |
| 696 | STATIONARY ENGINEERS | 350 | |
| 699 | MISCELLANEOUS PLANT AND SYSTEM OPERATORS | 703 | |
| 703 | LATHE AND TURNING MACHINE SET-UP OPERATORS | 130 | |
| 704 | LATHE AND TURNING MACHINE OPERATORS | 8,684 | 79 |
| 705 | MILLING AND PLANING MACHINE OPERATORS | 1,413 | |
| 706 | PUNCHING AND STAMPING PRESS MACHINE OPERATORS | 2,947 | 21 |
| 707 | ROLLING MACHINE OPERATORS | 329 | |
| 708 | DRILLING AND BORING MACHINE OPERATORS | 2,951 | 58 |
| 709 | GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS | 4,648 | 644 |
| 713 | FORGING MACHINE OPERATORS | 1,256 | 128 |
| 714 | NUMERICAL CONTROL MACHINE OPERATORS | 245 | |
| 715 | MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS | 449 | 223 |
| 717 | FABRICATING MACHINE OPERATORS, N.E.C. | 2,697 | |
| 719 | MOLDING AND CASTING MACHINE OPERATORS | 4,210 | 325 |
| 723 | METAL PLATING MACHINE OPERATORS | 476 | 23 |
| 724 | HEAT TREATING EQUIPMENT OPERATORS | 619 | |
| 725 | MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS | 31 | |
| 727 | SAWING MACHINE OPERATORS | 990 | |
| 733 | MISCELLANEOUS WOODWORKING MACHINE OPERATORS | 9 | |
| 734 | PRINTING MACHINE OPERATORS | 104 | |
| 736 | TYPESETTERS AND COMPOSITORS | 923 | |
| 738 | WINDING AND TWISTING MACHINE OPERATORS | 1,108 | 589 |
| 739 | KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS | 9,849 | 6,265 |
| 744 | TEXTILE SEWING MACHINE OPERATORS | 66 | |
| 748 | LAUNDERING AND DRY CLEANING MACHINE OPERATORS | 560 | 560 |
| 749 | MISCELLANEOUS TEXTILE MACHINE OPERATORS | 3,258 | 1,114 |
| 754 | PACKAGING AND FILLING MACHINE OPERATORS | 2,536 | 831 |
| 755 | EXTRUDING AND FORMING MACHINE OPERATORS | 1,239 | 31 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 3,053 | 140 |
| 758 | COMPRESSING AND COMPACTING MACHINE OPERATORS | 703 | 43 |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 1,196 | 11 |
| 764 | WASHING, CLEANING, AND PICKLING MACHINE OPERATORS | 158 | |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 830 | 18 |
| 769 | SLICING AND CUTTING MACHINE OPERATORS | 2,808 | 992 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 25,812 | 5,316 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 31,772 | 3,675 |
| 783 | WELDERS AND CUTTERS | 2,923 | 71 |
| 785 | ASSEMBLERS | 19,299 | 1,672 |
| 796 | PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS | 2,181 | 393 |
| 797 | PRODUCTION TESTERS | 1,192 | 464 |
| 804 | TRUCK DRIVERS, HEAVY | 2,505 | |
| 844 | OPERATING ENGINEERS | 507 | |
| 848 | HOIST AND WINCH OPERATORS | 355 | |
| 849 | CRANE AND TOWER OPERATORS | 313 | |
| 855 | GRADER, DOZER, AND SCRAPER OPERATORS | 314 | |
| 856 | INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS | 1,403 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 1,582 | |
| 865 | HELPERS, CONSTRUCTION TRADES | 549 | |
| 869 | CONSTRUCTION LABORERS | 621 | |
| 873 | PRODUCTION HELPERS | 797 | |
| 878 | MACHINE FEEDERS AND OFFBEARERS | 3,745 | 250 |
| 883 | FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. | 8,397 | 4,733 |
| 885 | GARAGE AND SERVICE STATION RELATED OCCUPATIONS | 2,022 | |
| 887 | VEHICLE WASHERS AND EQUIPMENT CLEANERS | 607 | 145 |
| 888 | HAND PACKERS AND PACKAGERS | 2,696 | 214 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 3,951 | 489 |
| TOTAL | 439,298 | 44,557 | |
*(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.