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 |
|---|---|---|---|---|---|---|
| Chromium (III) Compounds - (as Cr) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.5mg/m3 (o)(t) | 25mg/m3 | For specific information, refer to NIOSH Pocket Guide to Chemical Hazards; t-A4 | |
| Vanadium Pentoxide Fume (as V2O5) | 1314-62-1 | N | 2310/2315N99 2400/2800N95 | 0.05 mg/m3 (t); 0.1 mg/m3 (c)(o) | 35 mg/m3 (as V) | t-A4, Substance for which an ACGIH BEI exists. ACGIH NIC to 0.05 mg/m3 measured as inhalable fraction of the aerosol and t-A3 |
| Hafnium & Compounds, Dusts & Mists | 7440-58-6 | N | EZ22/EZ23N95 2200/2300N95 26002700N95 | 0.5 mg/m3 (o)(t) | 50 mg/m3 (as Hf) | |
| Chromium (II) Compounds - (as Cr) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.5mg/m3 (o) | 250mg/m3 | For specific information, refer to: NIOSH Pocket Guide to Chemical Hazards | |
| VM & P Naphtha | 8032-32-4 | FF-OV | 9001/2/3+ 7100 | |||
| Welding Fumes (Not Otherwise Classified) | N | 2200/2315N99 2400/2800N95 | ||||
| Methyl Isobutyl Ketone | 108-10-1 | FF-OV | ||||
| Paraquat Dichloride | 1910-42-5 | OV/NRP | 7100+8910/ 8970/7940 8100+8910/ 8970/8940 | 1 mg/m3 (t) | ||
| Silica-Crystalline (Cristobalite* & Tridymite?) | *14464-46-1, ?15468-32-3 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | (Cristobalite only) 0.025 mg/m3 (t) (Respirable); (o)respirable fraction use 1?2 the value calculated from the formulas (applies to quartz for cristabolite & tridymite.) | 25 mg/m3 | t-A2 |
| Silica-Crystalline; Tripoli | 1317-95-9 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | (o) use the value calculated from the formulas for quartz | 50 mg/m3 |
