| Agent Name | YEAST EXTRACT |
| CAS # | |
| RTECS # | |
| Agent Code | X9252 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 078 | BIOLOGICAL AND LIFE SCIENTISTS | 617 | 474 |
| 083 | MEDICAL SCIENTISTS | 169 | 131 |
| 203 | CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS | 6,454 | 5,110 |
| 206 | RADIOLOGIC TECHNICIANS | 993 | 689 |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 125 | |
| 223 | BIOLOGICAL TECHNICIANS | 2,346 | 1,848 |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 50 | 50 |
| 446 | HEALTH AIDES, EXCEPT NURSING | 933 | 605 |
| 447 | NURSING AIDES, ORDERLIES, AND ATTENDANTS | 18 | 9 |
| 449 | MAIDS AND HOUSEMEN | 34 | 34 |
| 453 | JANITORS AND CLEANERS | 76 | |
| 458 | HAIRDRESSERS AND COSMETOLOGISTS | 2,271 | 1,817 |
| 688 | FOOD BATCHMAKERS | 113 | |
| 754 | PACKAGING AND FILLING MACHINE OPERATORS | 76 | 76 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 3 | |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 453 | 453 |
| TOTAL | 14,731 | 11,297 | |
*(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.