This method documents sampling and analytical procedures for the measurement of subsets of the 97 volatile organic compounds (VOCs) that are included in the 189 hazardous air pollutants (HAPs) listed in Title III of the Clean Air Act Amendments of 1990. VOCs are defined in this method as organic compounds having a vapor pressure greater than 10-1 Torr at 25°C and 760mm Hg. This method applies to VOCs with ambient concentrations above 0.5 ppbv. TO-15 should be considered for use when a subset of the 97 Title III VOCs constitute the target list.
This method is typically used for ambient air testing associated with the permitting procedures for emission sources. Solid adsorbents may be used as long as they meet the performance criteria set in TO-17.
The sample is collected in certified clean evacuated stainless steel canister. It is possible to use the can also for pressurized sampling where a pump is needed to provide positive pressure to the sample canister. The sample is analyzed using GC/MS.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 30 days from sample collection to analysis. |
| Preservatives: | None specified in the method. |
| Required Preps: | Stainless steel canister with the option of a flow controller. |
| Collection Method: | TO-15 |
| Analytical Methodology: | GC/MS |
| Documentation: | 
TO-15
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Ethylbenzene | C8H10 |
100-41-4 |
0.5 |
ppbv |
| Styrene | C8H8 |
100-42-5 |
0.5 |
ppbv |
| Benzyl chloride | C7H7Cl |
100-44-7 |
0.5 |
ppbv |
| p-Xylene | C8H10 |
106-42-3 |
0.5 |
ppbv |
| 1,4-Dichlorobenzene | C6H4Cl2 |
106-46-7 |
0.5 |
ppbv |
| 1,2-Epoxybutane | C4H8O |
106-88-7 |
0.5 |
ppbv |
| Epichlorohydrin | C3H5ClO |
106-89-8 |
0.5 |
ppbv |
| 1,2-Dibromoethane | C2H4Br2 |
106-93-4 |
0.5 |
ppbv |
| 1,3-Butadiene | C4H6 |
106-99-0 |
0.5 |
ppbv |
| Acrolein | C3H4O |
107-02-8 |
0.5 |
ppbv |
| Allyl chloride | C3H5Cl |
107-05-1 |
0.5 |
ppbv |
| 1,2-Dichloroethane | C2H4Cl2 |
107-06-2 |
0.5 |
ppbv |
| Acrylonitrile | C3H3N |
107-13-1 |
0.5 |
ppbv |
| Chloromethyl Methyl Ether | C2H5ClO |
107-30-2 |
0.5 |
ppbv |
| Vinyl Acetate | C4H6O2 |
108-05-4 |
0.5 |
ppbv |
| Methyl isobutyl ketone (MIBK) | C6H12O |
108-10-1 |
0.5 |
ppbv |
| m-Xylene | C8H10 |
108-38-3 |
0.5 |
ppbv |
| Toluene | C7H8 |
108-88-3 |
0.5 |
ppbv |
| Chlorobenzene | C6H5Cl |
108-90-7 |
0.5 |
ppbv |
| Phenol | C6H6O |
108-95-2 |
0.5 |
ppbv |
| Hexane | C6H14 |
110-54-3 |
0.5 |
ppbv |
| bis(2-Chloroethyl)ether | C4H8Cl2O |
111-44-4 |
0.5 |
ppbv |
| Propane sultone | 1120-71-4 |
0.5 |
ppbv | |
| Pyrocatechol | C6H6O2 |
120-80-9 |
0.5 |
ppbv |
| 1,2,4-Trichlorobenzene | C6H3Cl3 |
120-82-1 |
0.5 |
ppbv |
| Triethylamine | C6H15N |
121-44-8 |
0.5 |
ppbv |
| Dimethylaniline | C8H11N |
121-69-7 |
0.5 |
ppbv |
| Propionaldehyde (Propanal) | C3H6O |
123-38-6 |
0.5 |
ppbv |
| 1,4-Dioxane | C4H8O2 |
123-91-1 |
0.5 |
ppbv |
| Chloroprene | C4H5Cl |
126-99-8 |
0.5 |
ppbv |
| Tetrachloroethene | C2Cl4 |
127-18-4 |
0.5 |
ppbv |
| Cresol (All Isomers) | 1319-77-3 |
0.5 |
ppbv | |
| Xylenes (total) | 1330-20-7 |
0.5 |
ppbv | |
| Ethyl Acrylate | C5H8O2 |
140-88-5 |
0.5 |
ppbv |
| Ethylenimine | C2H5N |
151-56-4 |
0.5 |
ppbv |
| Methyl tert-butyl ether | C5H12O |
1634-04-4 |
0.5 |
ppbv |
| Diazomethane | CH2N2 |
334-88-3 |
0.5 |
ppbv |
| Carbonyl sulfide | COS |
463-58-1 |
0.5 |
ppbv |
| Formaldehyde | CH2O |
50-00-0 |
0.5 |
ppbv |
| Urethane | C3H7NO2 |
51-79-6 |
0.5 |
ppbv |
| Isooctane (2,2,4-Trimethylpentane) | C8H18 |
540-84-1 |
0.5 |
ppbv |
| 1,3-Dichloropropene | C3H4Cl2 |
542-75-6 |
0.5 |
ppbv |
| bis-Chloromethyl ether | C2H4Cl2O |
542-88-1 |
0.5 |
ppbv |
| Carbon tetrachloride | CCl4 |
56-23-5 |
0.5 |
ppbv |
| 1,1-Dimethylhydrazine | C2H8N2 |
57-14-7 |
0.5 |
ppbv |
| beta-Propiolactone | C3H4O2 |
57-57-8 |
0.5 |
ppbv |
| Vinyl Bromide | C2H3Br |
593-60-2 |
0.5 |
ppbv |
| N-Nitrosomorpholine | C4H8N2O2 |
59-89-2 |
0.5 |
ppbv |
| Methylhydrazine | CH6N2 |
60-34-4 |
0.5 |
ppbv |
| Methyl Isocyanate | C2H3NO |
624-83-9 |
0.5 |
ppbv |
| Aniline | C6H7N |
62-53-3 |
0.5 |
ppbv |
| N-Nitrosodimethylamine | C2H6N2O |
62-75-9 |
0.5 |
ppbv |
| Sulfuric acid, diethyl ester | C4H10O4S |
64-67-5 |
0.5 |
ppbv |
| Methanol | CH4O |
67-56-1 |
0.5 |
ppbv |
| Chloroform | CHCl3 |
67-66-3 |
0.5 |
ppbv |
| Hexachloroethane | C2Cl6 |
67-72-1 |
0.5 |
ppbv |
| N,N-Dimethylformamide | C3H7NO |
68-12-2 |
0.5 |
ppbv |
| N-Nirtoso-N-Methylurea | 684-93-5 |
0.5 |
ppbv | |
| Benzene | C6H6 |
71-43-2 |
0.5 |
ppbv |
| 1,1,1-Trichloroethane | C2H3Cl3 |
71-55-6 |
0.5 |
ppbv |
| Bromomethane | CH3Br |
74-83-9 |
0.5 |
ppbv |
| Chloromethane (Methyl chloride) | CH3Cl |
74-87-3 |
0.5 |
ppbv |
| Methyl iodide | CH3I |
74-88-4 |
0.5 |
ppbv |
| Chloroethane | C2H5Cl |
75-00-3 |
0.5 |
ppbv |
| Vinyl chloride | C2H3Cl |
75-01-4 |
0.5 |
ppbv |
| Acetonitrile | C2H3N |
75-05-8 |
0.5 |
ppbv |
| Acetaldehyde | C2H4O |
75-07-0 |
0.5 |
ppbv |
| Methylene chloride | CH2Cl2 |
75-09-2 |
0.5 |
ppbv |
| Carbon disulfide | CS2 |
75-15-0 |
0.5 |
ppbv |
| Ethylene oxide | C2H4O |
75-21-8 |
0.5 |
ppbv |
| Bromoform | CHBr3 |
75-25-2 |
0.5 |
ppbv |
| 1,1-Dichloroethane | C2H4Cl2 |
75-34-3 |
0.5 |
ppbv |
| 1,1-Dichloroethene | C2H2Cl2 |
75-35-4 |
0.5 |
ppbv |
| Phosgene | CCl2O |
75-44-5 |
0.5 |
ppbv |
| Propylenimime | C3H7N |
75-55-8 |
0.5 |
ppbv |
| Propylene oxide | C3H6O |
75-56-9 |
0.5 |
ppbv |
| Dimethyl Sulfate | C2H6O4S |
77-78-1 |
0.5 |
ppbv |
| Isophorone | C9H14O |
78-59-1 |
0.5 |
ppbv |
| 1,2-Dichloropropane | C3H6Cl2 |
78-87-5 |
0.5 |
ppbv |
| Methyl ethyl ketone (2-Butanone) | C4H8O |
78-93-3 |
0.5 |
ppbv |
| 1,1,2-Trichloroethane | C2H3Cl3 |
79-00-5 |
0.5 |
ppbv |
| Trichloroethene | C2HCl3 |
79-01-6 |
0.5 |
ppbv |
| Acrylamide | C3H5NO |
79-06-1 |
0.5 |
ppbv |
| Acrylic acid | C3H4O2 |
79-10-7 |
0.5 |
ppbv |
| Monochloracetic Acid (MCAA) | C2H3ClO2 |
79-11-8 |
0.5 |
ppbv |
| 1,1,2,2-Tetrachloroethane | C2H2Cl4 |
79-34-5 |
0.5 |
ppbv |
| Dimethyl carbamoyl chloride | C3H6ClNO |
79-44-7 |
0.5 |
ppbv |
| 2-Nitropropane | C3H7NO2 |
79-46-9 |
0.5 |
ppbv |
| Methyl methacrylate | C5H8O2 |
80-62-6 |
0.5 |
ppbv |
| Hexachlorobutadiene | C4Cl6 |
87-68-3 |
0.5 |
ppbv |
| o-Xylene | C8H10 |
95-47-6 |
0.5 |
ppbv |
| o-Cresol | C7H8O |
95-48-7 |
0.5 |
ppbv |
| 1,2-Epoxyethylbenzene | C8H8O |
96-09-3 |
0.5 |
ppbv |
| 1,2-Dibromo-3-Chloropropane | C3H5Br2Cl |
96-12-8 |
0.5 |
ppbv |
| Cumene (Isopropylbenzene) | C9H12 |
98-82-8 |
0.5 |
ppbv |
| Acetophenone | C8H8O |
98-86-2 |
0.5 |
ppbv |
| Nitrobenzene | C6H5NO2 |
98-95-3 |
0.5 |
ppbv |
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.