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 |
|---|---|---|---|---|---|---|
| Ammonium Chloride | 12125-02-9 | solids N Liquids AM/N | EZ22/EZ23N95 2200/2300N95 26002700N95 {water based} 8400+8910 | 10mg/m3 (t); 20mg/m3 (s)-(t) | ||
| Ammonium Sulfamate | 7773-06-0 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | Total Dust 10mg/m3 (t), 15mg/m3 (o); Respirable fraction 5mg/m3 (o) | 1,500mg/m | |
| Aniline | 62-53-3 | OV | 7100 8100 | 5 ppm (o) 2 ppm (t) -skin- | 100 ppm | t-A3 |
| Anisidine (o-,p-Isomers) | o 90-04-0 p 104-94-9 | OV/RP OV/N | 7100+7940* 7100+8970* 7100+8990? 8100+8970/8940* 8100+8910? | 0.5mg/m3 (o)(t); -skin- | 50mg/m3 | t-A3 for o Isomer t-A4 for p Isomer |
| Antimony* & Compounds (as Sb), Dusts & Mists | *7440-36-0 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.5mg/m3 (o)(t) {water based mists} | 50mg/m3 (as Sb) | |
| ANTU | 86-88-4 | OV/NRP100 | 7100+7940 8100+8940 | 0.3mg/m3 (o)(t) | 100mg/m3 | t-A4 |
| Arsenic, Elemental & Inorganic Compounds (except Arsine) (as As) | *7440-38-2 | NRP100 | 2730N100 2360P100 8940/8990 7940/7990 | 0.01mg/m3 (o)(t) | 5mg/m3 | *See 29CFR1910.1018; O-Ca; t-A1; substance for which an ACGIH BEI exists |
| Asbestos, all forms | 1332-21-4, 12172-73-5, 12001-2 | NRP100 | 8940/8990 7940/7990 | 0.1 f/cc (o) (t)*; 1.0 f/cc (s)-(o) 30 minutes | *Fiber longer than 5 um; aspect ratio > 3:1 set by 400-450 X mag. (4 mm objective) pcm. See 29CFR1910.1001 & 1926.58; A-1; O-Ca | |
| Asphalt (petroleum; Bitumen) Fume | 8052-42-4 | OVRP | 8100+8970/8940 7100+8970/7940 | 0.5mg/m3 (t)* Soluble aerosol as benzene (or equivalent method) inhalable particulate | 2740R95/2840R95 may be suitable for some app’s. t-A4 | |
| Azinphos-methyl | 86-50-0 | OVRP | 8100+8970/8940 7100+8970/7940 | 0.2mg/m3 (o)(t); -*skin- -SEN- | 10mg/m3 | Substance for which an ACGIH BEI exists, t-A4; *measured as inhalable fraction and vapor |
