Chemical Respiratory Guide
Chemical Agent
CAS Number
Chemical Respiratory ChartDownload a printable version
| Chemical Name | CAS Number | Filter Type | Suggested Product | TLV(t) PEL(o) | IDLH | Comments |
|---|---|---|---|---|---|---|
| Uranium (natural*), insoluble compounds (as U) | *7440-61-1 | NRP100 | 2730N100 2360P100 8940/8990 | 0.05 mg/m3(o) 0.2 mg/m3 (t); 0.6 mg/m3 (s)-(t) | 10 mg/m3 (as U) | t-A1 Refer to 10CFR20 Subpart H |
| Yttrium*, Metal & cpds; Dusts & Metals (as Y) | *7440-65-5 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 1 mg/m3 (o)(t) | 500 mg/m3 | |
| Zirconium* compounds dusts and mists (as Zr) | *7440-67-7 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 5 mg/m3 (o)(t); 10 mg/m3 (s)-(t) {water based mists} | 50 mg/m3 | t-A4 |
| Selenium* & Compounds; Dusts & Mists (except Hexafluoride) (as Se) | *7782-49-2 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.2 mg/m3 (o)(t) | 1 mg/m3 (as Se) | |
| Nitroluene (o*, m†, p?) | *88-72-2 † 99-08-1 ?99-99-0 | OV/N | 7100+8910 8100+8910 | 2 ppm (t); -skin- 5 ppm (o) | 200 ppm | Substance for which an ACGIH BEI (Methemoglobin inducer) exists |
| p-Nitroaniline | 100-01-6 | OV/N | 7100+8910 8100+8910 | 3 mg/m3 (t); -skin- 6 mg/m3 (o) | 300mg/m3 | Substance for which an ACGIH BEI exists t-A4 |
| Dinitrobenzene (All Isomers) | 100-25-4; 528-29-0; 99-65-0 | OV/N | 7100+8910 8100+8910 | 1 mg/m3 (o)(t); -skin- | 50 mg/m3 | Substance for which an ACGIH BEI exists (Methemoglobin Inducer) exists |
| 2 Diethylaminoethanol | 100-37-8 | OV | 7100 8100 | 10 ppm (o); 2 ppm (t); -skin- | 100 ppm | |
| Ethyl Benzene | 100-41-4 | OV | 7100 8100 | 20 ppm (t); 100 ppm (o); 125 ppm (s)-(t) | 800 ppm | Add 8940 if particulate [10% Lower is present. Substance explosion limit] for which a t-A3; ACGIH BEI exists; |
| Styrene, Monomer | 100-42-5 | OV | 7100 8100 | 20 ppm (t)*; 100 ppm -(o); - 40 ppm (s)-(t) 200 ppm (c)-(o) [600 ppm (c)-(o); 5 min peak / any 3 hrs] | 700 ppm | *Substance for which an ACGIH BEI exists; A-4 |
