| 10 min | 30 min | 60 min | 4 hr | 8 hr | |
|---|---|---|---|---|---|
| ppm | |||||
| AEGL 1 | 1,000 | 1,000 | 1,000 | 1,000 | 1,000 |
| AEGL 2 | 1,700 | 1,700 | 1,700 | 1,700 | 1,700 |
| AEGL 3 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 |
- HCFC 141b AEGL Technical Support Document (PDF)(75 pp, 608 K)
US EPA
United States Environmental Protection Agency