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 |
|---|---|---|---|---|---|---|
| Hydrogen Chloride | 7647-01-0 | AG | 7200 8200 | 2 ppm (c)-(t) 5 ppm (c)-(o) | 50 ppm | ACGIH NIC to 2 ppm (C) & t-A4 |
| Hydrogen Sulfide | 7783-06-4 | AG | 7200 8200 | 1 ppm (t); 5 ppm (s)-(t); 20 ppm (c)-(o); [50 ppm 10 min peak / 8 hr shift] | 100 ppm | Escape only; Poor warning; Olfactory fatigue; (t) |
| Sodium Bisulfite | 7631-90-5 | AG/N | 7200+8910 8100+8910 | 5 mg/m3 (t) | t-A4 | |
| Sodium Metabisulfite | 7681-57-4 | AG/N | 7200+8910 | 5 mg/m3 (t) | t-A4 | |
| Sulfuric Acid | 7664-93-9 | AG/N | 7200+8910 8200+8910 | 1 mg/m3 (o)(t); 0.2* (t) | 15 mg/m3 | Must use appropriate eye protection, t-A2 for Sulfuric Acids contained in strong inorganic acid mists *Measured as Thoracic fraction of aerosol |
| Uranium (Natural)*, Soluble Compounds (as U) | 7440-61-1 | AG/P100 | 7200+7940 8200+8940 | 0.05 mg/m3(o); 0.2 mg/m3 (t); 0.6 mg/m3 (s)-(t) | 10 mg/m3 (as U) {water soluble} | t-A1 Refer to 10CR20 Subpart H |
| n-Butylamine | 109-73-9 | AM | 7400/8400 7600/8600 | 5 ppm (c)-(o)(t) -skin- | 300 ppm | Not specifically approved, but better service life than O.V. |
| Dimethylamine | 124-40-3 | AM | 7400 8400 | 5 ppm (t); 10 ppm (o); 15 ppm (s)-(t)-skin- | 500 ppm | AM not specifically approved & short OV service life; t-A4 |
| Ammonia | 7664-41-7 | AM | 7400/8400 7600/8600 | 35 ppm (s)-(t); 25 ppm (t) 50 ppm (o) | 300 ppm | Must wear chemical goggles when using half mask respirator |
| Methylamine | 74-89-5 | AM | 7400 8400 | 10 ppm (o), 5 ppm (t); 15 ppm (s)-(t) | 100 ppm | Must use goggles for half mask |
