| Agent Name | SODIUM OXIDE (NAO) |
| CAS # | 12401-86-4 |
| RTECS # | WC4800000 |
| Agent Code | X3989 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 48 | 16 |
| 224 | CHEMICAL TECHNICIANS | 201 | |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 201 | 90 |
| 364 | TRAFFIC, SHIPPING, AND RECEIVING CLERKS | 276 | |
| 365 | STOCK AND INVENTORY CLERKS | 46 | 46 |
| 453 | JANITORS AND CLEANERS | 365 | |
| 508 | AIRCRAFT ENGINE MECHANICS | 2,806 | 199 |
| 547 | SPECIFIED MECHANICS AND REPAIRERS, N.E.C. | 372 | |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 202 | |
| 615 | EXPLOSIVES WORKERS | 14 | |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 171 | |
| 637 | MACHINISTS | 951 | |
| 647 | PRECIOUS STONES AND METALS WORKERS (JEWELERS) | 677 | 483 |
| 675 | HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS | 346 | |
| 677 | OPTICAL GOODS WORKERS | 3,948 | 1,967 |
| 683 | ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS | 118 | 118 |
| 709 | GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS | 4,388 | 2,687 |
| 719 | MOLDING AND CASTING MACHINE OPERATORS | 120 | |
| 734 | PRINTING MACHINE OPERATORS | 23 | |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 766 | 27 |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 1,946 | 786 |
| 764 | WASHING, CLEANING, AND PICKLING MACHINE OPERATORS | 95 | |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 3,450 | 850 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 2,449 | 115 |
| 785 | ASSEMBLERS | 372 | 282 |
| 789 | HAND PAINTING, COATING, AND DECORATING OCCUPATIONS | 608 | |
| 795 | MISCELLANEOUS HAND WORKING OCCUPATIONS | 264 | |
| 849 | CRANE AND TOWER OPERATORS | 30 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 164 | |
| 887 | VEHICLE WASHERS AND EQUIPMENT CLEANERS | 97 | |
| 888 | HAND PACKERS AND PACKAGERS | 276 | |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 30 | |
| TOTAL | 25,821 | 7,667 | |
*(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.