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 |
|---|---|---|---|---|---|---|
| Ammonium Chloride | 12125-02-9 | solids N Liquids AM/N | EZ22/EZ23N95 2200/2300N95 26002700N95 {water based} 8400+8910 | 10mg/m3 (t); 20mg/m3 (s)-(t) | ||
| Hafnium & Compounds, Dusts & Mists | 7440-58-6 | N | EZ22/EZ23N95 2200/2300N95 26002700N95 | 0.5 mg/m3 (o)(t) | 50 mg/m3 (as Hf) | |
| Sulfur Dioxide | 7446-09-5 | AG | 7200 8200 | 5 ppm (o); 2 ppm (t); 5 ppm (s)-(t) | 100 ppm | t-A4; ACGIH NIC to 0.25 (c) |
| Hydrogen Bromide | 10035-10-6 | AG | 7200 8200 | 3 ppm (o) 2 ppm (c)-(t) | 30 ppm | |
| 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) |
| 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 |
| Sodium Bisulfite | 7631-90-5 | AG/N | 7200+8910 8100+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 |
| Sodium Metabisulfite | 7681-57-4 | AG/N | 7200+8910 | 5 mg/m3 (t) | t-A4 |
