Chemical Respiratory Guide
Chemical Agent
CAS Number

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Chemical Name | CAS Number | Filter Type | Suggested Product | TLV(t) PEL(o) | IDLH | Comments |
---|---|---|---|---|---|---|
Calcium Oxide | 1305-78-8 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 5 mg/m3 (o); 2 mg/m3 (t) 25 mg/m3 | ||
Calcium Silicate (synthetic) (non-fibrous) | 1344-95-2 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 15 mg/m3 (o) 10 mg/m3 (t); Respirable fraction 5 mg/m3 (o) | Total dust containing no Asbestos and <1% Crystalline Silica, t-A4 | |
Camphor | 76-22-2 | FF-OV/N95 | 9001/2/3+ 7100+8910 | 2 ppm (o)(t) 3 ppm (s)-(t) | 200 mg/m3 | |
Caprolactam Vapor and Aerosol | 105-60-2 | OV/N | 7100+8910 8100+8910 | 5.0 mg/m3(t)*; 3.0 mg/m3 (s)-(t) | t-A5 *Measured as inhalable fraction and vapor | |
Captan (Inhalable Fraction) | 133-06-2 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 5 mg/m3(t) | SEN | |
Carbon Black | 1333-86-4 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 3.5 mg/m3 (o)(t) | 1,750 mg/m3 | t-A4 ACGIH NIC to 3mg/m3 measured as inhalable fraction & NIC t-A3 |
Carbon disulfide | 75-15-0 | OV | 7100 8100 | 10 ppm (t); 20 ppm -(o); 30 ppm -(c)-(o); [100 ppm (c)-(o) 30 min. peak/8 hour shift]; -skin- | 500 ppm | Substance for which an ACGIH BEI exists |
Catechol | 120-80-9 | OV/N | 7100+8910 8100+8910 | 5 ppm (t); -skin- | t-A3 | |
Cellulose | 9004-34-6 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total Dust 15 mg/m3 (o), 10 mg/m3 (t); Respirable fraction 5 mg/m3 (o) | ||
Cesium Hydroxide | 21351-79-1 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 2 mg/m3 (t) |