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 |
|---|---|---|---|---|---|---|
| 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 | |
| Benzene | 71-43-2 | OV | 8100 7100 | 1 ppm (o); 5 ppm (s)-(o); 0.5 ppm (t); 2.5 (s)-(t) -skin- | 500 ppm | t-A1. Change cartridge every shift. See table Z-2 and 29CFR1910.1028; O-Ca; 1/2 mask allowed with constant monitoring. Substance for which an ACGIH BEI exists. |
| Benzoyl Peroxide | 94-36-0 | OV/N | 8100+8910 7100+8910 | 5mg/m3 (o)(t) | 1,500mg/m3 | t-A4 |
| Benzyl Chloride | 100-44-7 | FF-OV/AG | 9001/2/3+ 7300/7600 | 1 ppm (o)(t) | 10 ppm | t-A3 Add particulate prefilter if particulate is present |
| Beryllium & Compounds (as Be) | 7440-41-7 | NRP100 | 2730N100 2360P100 8940/8990 7940/7990 | 0.002mg/m3 (o)(t) 0.005mg/m3 (c)-(o); 0.01 mg/m3 (c)-(t) [0.025mg/m3 for 30 min. peak/8 hr. shift (c)-(o)] | 4mg/m3 | t-A1; ACGIH NIC to 0.0005 mg/m3 (inhalable fraction), 0.0002 STEL/CEIL (inhalable fraction) SEN, Skin. |
| Biphenyl | 92-52-4 | OV/N | 8100+8910 7100+8910 | 0.2 ppm (o)(t) | 100mg/m3 | |
| 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 | |
| Borates, compounds, Inorganic | 12179-04-3, 1303-96-4, 1330-43 | N | EZ22/EZ22N95 2200/2300N95 2600/2700N95 | 2.0mg/m3 (t) inhalable 6.0mg/m3 (s)-(t) inhalable | ||
| Boron Oxide | 1303-86-2 | N | EZ22/EZ22N95 2200/2300N95 2600/2700N95 | Total Dust 10mg/m3 (t),15mg/m3 (o) | 2,000mg/m3 | |
| Bromine | 7726-95-6 | FF-OV/AG | 9001/2/3+ 7300/7600 | 0.1 ppm (o)(t) 0.2 ppm (s)-(t) | 3 ppm |
