| Agent Name | ISOPHTHALONITRILE, TETRACHLORO- |
| CAS # | 1897-45-6 |
| RTECS # | NT2600000 |
| Agent Code | T1833 |
| SIC | Industry Description (1972) | Total # Employees (Male & Female) |
Total # Female Employees |
| 15 | GENERAL BUILDING CONTRACTORS | 8,114 | |
| 17 | SPECIAL TRADE CONTRACTORS | 8,904 | |
| 20 | FOOD AND KINDRED PRODUCTS | 202 | |
| 24 | LUMBER AND WOOD PRODUCTS | 1,681 | 516 |
| 25 | FURNITURE AND FIXTURES | 654 | |
| 28 | CHEMICALS AND ALLIED PRODUCTS | 3,972 | 287 |
| 32 | STONE, CLAY, AND GLASS PRODUCTS | 583 | |
| 34 | FABRICATED METAL PRODUCTS | 2,286 | |
| 35 | MACHINERY, EXCEPT ELECTRICAL | 19,275 | 5,712 |
| 48 | COMMUNICATION | 13,491 | 36 |
| 49 | ELECTRIC, GAS, AND SANITARY SERVICES | 1,495 | |
| 50 | WHOLESALE TRADE - DURABLE GOODS | 173 | |
| 75 | AUTO REPAIR, SERVICES, AND GARAGES | 118 | |
| 80 | HEALTH SERVICES | 134 | |
| 84 | MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS | 1,643 | 164 |
| TOTAL | 62,724 | 6,716 | |
*(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.