Figure: 25 TAC §295.101(c)
List of Toxic Gases with Corresponding Chemical Abstract Service (CAS) Numbers
and Recommended Allowable Concentrations (RACs)
|
Chemical Name |
CAS Number |
RAC in ppm |
RAC in mg/M3 |
|
Ammonia (Anhydrous) |
7664-41-7 |
50 |
35 |
|
Arsine |
7784-42-1 |
0.05 |
|
|
Boron trifluoride |
7637-07-2 |
1 |
3 |
|
Butadiene |
106-99-0 |
1 |
|
|
Carbon monoxide |
630-08-0 |
50 |
55 |
|
Chlorine |
7782-50-5 |
1 |
3 |
|
Chlorine trifluoride |
7790-91-2 |
0.1 |
0.4 |
|
Diazomethane |
334-88-3 |
0.2 |
0.4 |
|
Diborane |
19287-45-7 |
0.1 |
0.1 |
|
Dimethylamine |
124-40-3 |
10 |
18 |
|
Ethylamine |
75-04-7 |
10 |
18 |
|
Ethylene oxide |
75-21-8 |
1 |
|
|
Fluorine |
7782-41-4 |
0.1 |
0.2 |
|
Formaldehyde |
50-00-0 |
0.75 |
|
|
Hydrogen bromide |
10035-10-6 |
3 |
10 |
|
Hydrogen chloride |
7647-01-0 |
5 |
7 |
|
Hydrogen cyanide |
74-90-8 |
10 |
11 |
|
Hydrogen fluoride |
7664-39-3 |
3 |
|
|
Hydrogen selenide |
7783-07-5 |
0.05 |
0.2 |
|
Hydrogen sulfide |
7783-06-4 |
20 |
50 |
|
Ketene |
463-51-4 |
0.5 |
0.9 |
|
Methylamine |
74-89-5 |
10 |
12 |
|
Methyl bromide |
74-83-9 |
20 |
80 |
|
Methyl mercaptan |
74-93-1 |
10 |
20 |
|
Nitric oxide |
10102-43-9 |
25 |
30 |
|
Nitrogen dioxide |
10102-44-0 |
5 |
9 |
|
Nitrogen trifluoride |
7783-54-2 |
10 |
29 |
|
Oxygen difluoride |
7783-41-7 |
0.05 |
0.1 |
|
Ozone |
10028-15-6 |
0.1 |
0.2 |
|
Perchloryl fluoride |
7616-94-6 |
3 |
13.5 |
|
Phosgene (Carbonyl chloride) |
75-44-5 |
0.1 |
0.4 |
|
Phosphine |
7803-51-2 |
0.3 |
0.4 |
|
Selenium hexafluroide |
7783-79-1 |
0.05 |
0.4 |
|
Stibine |
7803-52-3 |
0.1 |
0.5 |
|
Sulfur dioxide |
7446-09-5 |
5 |
13 |
|
Sulfuryl fluoride |
2699-79-8 |
5 |
20 |
|
Tellurium hexafluoride |
7783-80-4 |
0.02 |
0.2 |