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 |
|---|---|---|---|---|---|---|
| Potassium Hydroxide | 1310-58-3 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 2 mg/m3 (c)-(t) | ||
| Barium Sulfate | 7725-43-7 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 10mg/m3 (t), 15mg/m3 (o); Respirable fraction 5mg/m3 (o) | Total dust containing no Asbestos and <1% Crystalline Silica | |
| Bismuth Telluride un-doped, as Bi 2 Te 3 | 1304-82-1 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 15mg/m3 (o) 10mg/m3 (t); Respirable fraction 5mg/m3 (o) | t-A4 | |
| Rhodium, Metal* and Insoluble Compounds, Dusts and Mists (as Rh) | *7440-16-6 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.1 mg/m3(o); 1 mg/m3 (t) {water-based} | 100 mg/m3 (as Rh) | t-A4 |
| Rouge | 1309-37-1 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 15 mg/m3 (o); Respirable fraction 5 mg/m3 (o) | ||
| 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) | |
| Silica-Amorphous, Diatomaceous Earth (Uncalcined) | 61790-53-2 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 20 mppcf (o) or 80 mg/m3 (o) ---------------- %SiO2 | 3000 mg/m3 | |
| Silica-Amorphous, Precipitated Silica and Silica Gel | *112926-00-8 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 20 mppcf (o) or 80 mg/m3 (o) --------------- %SiO2 | 3000 mg/m3 | |
| Silica-Amorphous, Silica-Fused | 60676-86-0 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 30 mg/m3 (o)** ------------------- %SiO2 +2 or 250 mppcf (o)* --------------------- %SiO2+5 or 10 mg/m3 (o)* -------------------- %SiO2+2 | 3000 mg/m3 | **Total dust *Respirable dust |
| Silica-Crystalline; Quartz* | *14808-60-7 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.25 mg/m3 (t)* quartz 10 mg/m3 (o)* ----------------- %SiO2+2 or 250 mppcf (o)* --------------------- %SiO2+5 or 30 mg (o)/m3** ---------------------- %SiO2+2 | 50 mg/m3 (Crystalline quartz) | t-A2 *Respirable dust **Total dust |
