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 |
---|---|---|---|---|---|---|
Isopropoxy-Ethanol | 109-59-1 | OV | 7100 8100 | 25 ppm (t); -skin- | ||
Kaolin | 1332-58-7 | N | EZ22/EZ23N95 2200/2300N95 2600/2800N95 | Total dust 15 mg/m3(o); Respirable fraction 5 mg/m3 (o), 2 mg/m3 (t) | t-A4, Particulate containing no Asbestos and <1% Crystalline Silica. Does not include stearates of toxic metals | |
Kerosene | 8008-20-6 | OV/RP | 7100+ 8970/7940 8100+ 8970/8940 | 200 ppm as total Hydrocarbon vapor -skin- | t-A3, avoid prolonged and repeated skin contact | |
Lead Chromate | 7758-97-6 | NRP100 | 2730N100 2360P100 7940/7990 8940/8990 | 0.05mg/m3 (t) as Pb; 0.012mg/m3 (t) as Cr | t-A2; substance for which ACGIH BEI exists | |
Limestone | 1317-65-3 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 15 mg/m3(o), 10 mg/m3 (t); Respirable fraction 5 mg/m3 (o) | Particulates containing no Asbestos and <1% Crystalline Silica, t-A3 | |
Magnesite | 546-93-0 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total dust 10 mg/m3(t) 15 mg/m3 (o); Respirable fraction 5 mg/m3 (o) | Particulate containing no Asbestos and <1% Crystalline Silica | |
Mercury, Aryl Compounds (as Hg) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.1 mg/m3 (t); 0.1 mg/m3 (c)-(o); -skin- | For dust with no vapor pressure; Substance for which ACGIH BEI exists | ||
4-Methoxyphenol | 150-76-5 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 5 mg/m3 (t) | ||
2-Methylcyclopentadienyl Manganese Tricarbonyl | 12108-13-3 | OV/N | 7100+8910 8100+8910 | 0.2 mg/m3 (t); -skin- | If heat involved, use | |
4,4-Methylenedianilene | 101-77-9 | NRP100 | 2730N100 2360P100 7940/7990 8940/7990 | 0.01 ppm (o); 0.1 ppm (t); 0.1 ppm (s)-(o); -skin- | Need OV/NRP100 if heat is involved. See 29 CFR 1910.1050; O-Ca; t-A3 |