40 CFR Appendix A to Part 68 - Table of Toxic Endpoints

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Appendix A to Part 68 - Table of Toxic Endpoints

[As defined in ยง 68.22 of this part]

CAS No. Chemical name Toxic endpoint (mg/L)
107-02-8 Acrolein [2-Propenal] 0.0011
107-13-1 Acrylonitrile [2-Propenenitrile] 0.076
814-68-6 Acrylyl chloride [2-Propenoyl chloride] 0.00090
107-18-6 Allyl alcohol [2-Propen-1-ol] 0.036
107-11-9 Allylamine [2-Propen-1-amine] 0.0032
7664-41-7 Ammonia (anhydrous) 0.14
7664-41-7 Ammonia (conc 20% or greater) 0.14
7784-34-1 Arsenous trichloride 0.010
7784-42-1 Arsine 0.0019
10294-34-5 Boron trichloride [Borane, trichloro-] 0.010
7637-07-2 Boron trifluoride [Borane, trifluoro-] 0.028
353-42-4 Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro[oxybis[methane]]-, T-4 0.023
7726-95-6 Bromine 0.0065
75-15-0 Carbon disulfide 0.16
7782-50-5 Chlorine 0.0087
10049-04-4 Chlorine dioxide [Chlorine oxide (ClO2)] 0.0028
67-66-3 Chloroform [Methane, trichloro-] 0.49
542-88-1 Chloromethyl ether [Methane, oxybis[chloro-] 0.00025
107-30-2 Chloromethyl methyl ether [Methane, chloromethoxy-] 0.0018
4170-30-3 Crotonaldehyde [2-Butenal] 0.029
123-73-9 Crotonaldehyde, (E)-, [2-Butenal, (E)-] 0.029
506-77-4 Cyanogen chloride 0.030
108-91-8 Cyclohexylamine [Cyclohexanamine] 0.16
19287-45-7 Diborane 0.0011
75-78-5 Dimethyldichlorosilane [Silane, dichlorodimethyl-] 0.026
57-14-7 1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-] 0.012
106-89-8 Epichlorohydrin [Oxirane, (chloromethyl)-] 0.076
107-15-3 Ethylenediamine [1,2-Ethanediamine] 0.49
151-56-4 Ethyleneimine [Aziridine] 0.018
75-21-8 Ethylene oxide [Oxirane] 0.090
7782-41-4 Fluorine 0.0039
50-00-0 Formaldehyde (solution) 0.012
110-00-9 Furan 0.0012
302-01-2 Hydrazine 0.011
7647-01-0 Hydrochloric acid (conc 37% or greater) 0.030
74-90-8 Hydrocyanic acid 0.011
7647-01-0 Hydrogen chloride (anhydrous) [Hydrochloric acid] 0.030
7664-39-3 Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid] 0.016
7783-07-5 Hydrogen selenide 0.00066
7783-06-4 Hydrogen sulfide 0.042
13463-40-6 Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] 0.00044
78-82-0 Isobutyronitrile [Propanenitrile, 2-methyl-] 0.14
108-23-6 Isopropyl chloroformate [Carbonochloride acid, 1-methylethyl ester] 0.10
126-98-7 Methacrylonitrile [2-Propenenitrile, 2-methyl-] 0.0027
74-87-3 Methyl chloride [Methane, chloro-] 0.82
79-22-1 Methyl chloroformate [Carbonochloridic acid, methylester] 0.0019
60-34-4 Methyl hydrazine [Hydrazine, methyl-] 0.0094
624-83-9 Methyl isocyanate [Methane, isocyanato-] 0.0012
74-93-1 Methyl mercaptan [Methanethiol] 0.049
556-64-9 Methyl thiocyanate [Thiocyanic acid, methyl ester] 0.085
75-79-6 Methyltrichlorosilane [Silane, trichloromethyl-] 0.018
13463-39-3 Nickel carbonyl 0.00067
7697-37-2 Nitric acid (conc 80% or greater) 0.026
10102-43-9 Nitric oxide [Nitrogen oxide (NO)] 0.031
8014-95-7 Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] 0.010
79-21-0 Peracetic acid [Ethaneperoxoic acid] 0.0045
594-42-3 Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-] 0.0076
75-44-5 Phosgene [Carbonic dichloride] 0.00081
7803-51-2 Phosphine 0.0035
10025-87-3 Phosphorus oxychloride [Phosphoryl chloride] 0.0030
7719-12-2 Phosphorus trichloride [Phosphorous trichloride] 0.028
110-89-4 Piperidine 0.022
107-12-0 Propionitrile [Propanenitrile] 0.0037
109-61-5 Propyl chloroformate [Carbonochloridic acid, propylester] 0.010
75-55-8 Propyleneimine [Aziridine, 2-methyl-] 0.12
75-56-9 Propylene oxide [Oxirane, methyl-] 0.59
7446-09-5 Sulfur dioxide (anhydrous) 0.0078
7783-60-0 Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] 0.0092
7446-11-9 Sulfur trioxide 0.010
75-74-1 Tetramethyllead [Plumbane, tetramethyl-] 0.0040
509-14-8 Tetranitromethane [Methane, tetranitro-] 0.0040
7750-45-0 Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] 0.020
584-84-9 Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-] 0.0070
91-08-7 Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] 0.0070
26471-62-5 Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 0.0070
75-77-4 Trimethylchlorosilane [Silane, chlorotrimethyl-] 0.050
108-05-4 Vinyl acetate monomer [Acetic acid ethenyl ester] 0.26
[61 FR 31729, June 20, 1996, as amended at 62 FR 45132, Aug. 25, 1997]