| Agent Name | HELIUM |
| CAS # | 7440-59-7 |
| RTECS # | MH6520000 |
| Agent Code | 35925 |
| SIC | Industry Description (1972) | Total # Employees (Male & Female) |
Total # Female Employees |
| 07 | AGRICULTURAL SERVICES | 4,029 | 2,015 |
| 20 | FOOD AND KINDRED PRODUCTS | 1,914 | 919 |
| 23 | APPAREL AND OTHER TEXTILE PRODUCTS | 341 | 136 |
| 28 | CHEMICALS AND ALLIED PRODUCTS | 7,503 | 1,554 |
| 29 | PETROLEUM AND COAL PRODUCTS | 18,661 | 476 |
| 32 | STONE, CLAY, AND GLASS PRODUCTS | 43 | |
| 33 | PRIMARY METAL INDUSTRIES | 602 | |
| 34 | FABRICATED METAL PRODUCTS | 2,059 | 825 |
| 35 | MACHINERY, EXCEPT ELECTRICAL | 3,177 | 90 |
| 36 | ELECTRIC AND ELECTRONIC EQUIPMENT | 5,108 | 2,208 |
| 37 | TRANSPORTATION EQUIPMENT | 1,524 | 190 |
| 38 | INSTRUMENTS AND RELATED PRODUCTS | 175 | 72 |
| 42 | TRUCKING AND WAREHOUSING | 1,757 | |
| 49 | ELECTRIC, GAS, AND SANITARY SERVICES | 1,974 | |
| 51 | WHOLESALE TRADE - NONDURABLE GOODS | 1,545 | |
| 73 | BUSINESS SERVICES | 16,593 | 2,786 |
| 80 | HEALTH SERVICES | 8,523 | 5,792 |
| TOTAL | 75,526 | 17,064 | |
*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) 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.