Appendix 3. Alphabetically-Sorted Listing of Chemicals for Which a PEL has been Established by OSHA
ppm in air
100 Acetaldehyde
10 Acetic acid
5* Acetic anhydride
750 Acetone
40 Acetonitrile
1 Acetylene tetrabromide
0.1 Acrolein
10 Acrylic acid
2 Allyl alcohol
1 Allyl chloride
2 Allyl propyl disulfide
0.05 alpha-Chloroacetophenone
50 alpha-Methyl styrene
0.5 2-Aminopyridine
50* Ammonia
100 n-Amyl acetate
2 Aniline and homologs
0.05 Arsine
10 Benzene
1 Benzyl chloride
0.02 Beryllium and its compounds
10 beta-Chloroprene
0.2 Biphenyl
1* Boron tribromide
1* Boron trifluoride
1 Bromacil
0.1 Bromine pentafluoride
0.1 Bromine
0.5 Bromoform
1000 Butadiene (1,3-Butadiene)
800 Butane
200 2-Butanone (Methyl ethyl ketone)
25 2-Butoxyethanol
150 n-Butyl acetate
10 Butyl acrylate
100* n-Butyl alcohol
5*(C) Butylamine
25 n-Butyl glycidyl ether (BGE)
5 n-Butyl lactate
0.5 Butyl mercaptan
5 o-sec-Butylphenol
0.2 Cadmium dust
0.1 Cadmium Fumes
10000 Carbon dioxide
20 Carbon disulfide
35 Carbon monoxide
0.1 Carbon tetrabromide
10 Carbon Tetrachloride
2 Carbonyl fluoride
5 Catechol (Pyrocatechol)
0.1 Chlorine dioxide
0.5 Chlorine
0.05 Chloroacetyl chloride
75 Chlorobenzene
200 Chlorobromomethane
1000 Chlorodifluoromethane
2 Chloroform (Trichloromethane)
2 1-Chloro-1-nitropropane
1000 Chloropentafluoroethane
0.1 Chloropicrin
50 o-Chlorostyrene
50 o-Chlorotoluene
1 Chromic acid and chromates
5 Cresol. all isomers
2 Crotonaldehyde
50 Cumene
10 Cyanogen
300 Cyclohexane
50 Cyclohexanol
25 Cyclohexanone
300 Cyclohexene
10 Cyclohexylamine
75 Cyclopentadiene
600 Cyclopentane
0.05 Decaborane
50 Diacetone alcohol
0.2 Diazomethane
0.1 Diborane
2 2-N-Dibutylamino-ethanol
1 Dibutyl phosphate
1000 Dichlorodifluoro-methane
100 1,1-Dichloroethane
5 Dichloroethyl ether
1 Dichloroethylene
200 1,2-Dichloroethylene
10 Dichloromonofluoro-methane
2 1,1-Dichloro-1-nitro-ethane
1 1,3-Dichloropropene
1 2,2-Dichloropropionic acid
1000 Dichlorotetrafluoroethane
5 Dicyclopentadiene
3 Diethanolamine
200 Diethyl ketone
10 Diethylamine
10 2-Diethylaminoethanol
1 Diethylene triamine
100 Difluorodibromomethane
0.1 Diglycidyl ether (DGE)
25 Diisobutyl ketone
5 Diisopropylamine
1000 Dimethoxymethane
10 Dimethyl acetamide
0.1 Dimethyl sulfate
10 Dimethylamine
10 Dimethylformamide
0.5 1,1-Dimethylhydrazine
25 Dioxane
50 Dipropyl ketone
100 Dipropylene glycol methyl ether
10 Divinyl benzene
2 Epichlorohydrin
3 Ethanolamine
50 Ethlyene dichloride
200 2-Ethoxyethanol
100 2-Ethoxyethyl acetate(CellosolveAc)
400 Ethyl acetate
5 Ethyl acrylate
1000 Ethyl alcohol
25 Ethyl amyl ketone
100 Ethyl benzene
200 Ethyl bromide
50 Ethyl butyl ketone
1000 Ethyl chloride
400 Ethyl ether
100 Ethyl formate
0.5 Ethyl mercaptan
5 N-Ethylmorpholine
10 Ethyl silicate
10 Ethylamine
20 Ethylene dibromide
1 Ethylene dichloride
10 Ethylenediamine
0.1 Fluorine
1000* Fluorotrichloromethane
3 Formaldehyde
20 Formamide
5 Formic acid
2 Furfural
10 Furfuryl alcohol
300 Gasoline
0.2 Germanium tetrahydride
25 Glycidol
400 Heptane
0.02 Hexachlorobutadiene
0.01 Hexachlorocyclopentadiene
1 Hexachloroethane
0.1 Hexafluoracetone
50 n-Hexane
500 Hexane isomers
5 2-Hexanone
0.1 Hydrazine
3* Hydrogen bromide
5*(C) Hydrogen chloride
10* Hydrogen cyanide
3 Hydrogen fluoride
1 Hydrogen peroxide
0.05 Hydrogen selenide (as Se)
20 Hydrogen sulfide
0.5 Hydrogenated terphenyls
0.5 2-Hydroxypropyl acrylate
10 Indene
0.6 Iodoform
0.1 Iron pentacarbonyl (as Fe)
100 Isoamyl acetate
100 Isoamyl alcohol (pri, sec)
150 Isobutyl acetate
50 Isobutyl alcohol
50 Isoctyl alcohol
0.005 Isophorone diisocyanate
4 Isophorone
250 Isopropyl acetate
400 Isopropyl alcohol
2 N-Isopropylaniline
500 Isopropyl ether
50 Isopropyl glycidyl ether (IGE)
5 Isopropylamine
25 2-Isopropoxyethanol
0.5 Ketene
1000 LPG (Liquified petroleum gas)
2 m-Nitrotoluene
2 m-Toluidine
0.25 Maleic anhydride
1 Mercury
15 Mesityl oxide
20 Methacrylic acid
25 2-Methoxyethanol (Me cellosolve)
2 Methyl 2-cyanoacrylate
200 Methyl acetate
1000 Methyl acetylene (Propyne)
1000 Methyl acetylene propadiene mixture
10 Methyl acrylate
200 Methyl alcohol
0.5 N-Methylaniline
5 Methyl bromide
25 Methyl cellosolve acetate
100 Methyl chloride
50 o-Methylcyclohexanone
100 Methyl formate
2 Methyl iodide
50 Methyl isoamyl ketone
25 Methyl isobutyl carbinol
50 Methyl isobutyl ketone
0.02 Methyl isocyanate
200 Methyl isopropyl ketone
0.5 Methyl mercaptan
100 Methyl methacrylate
100 Methyl n-amyl ketone
1 Methyl silicate
1 Methylacrylonitrile
10 Methylamine
400 Methylcyclohexane
50 Methylcyclohexanol
0.02 4,4-Methylenebis(2-chloroaniline)
500 Methylene chloride
20 Morpholine
5 N,N-Dimethylaniline
100 Naphtha (Coal tar)
10 Napthalene
0.001 Nickel carbonyl (as Ni)
2 Nitric acid
25 Nitric oxide
1 Nitrobenzene
100 Nitroethane
5*(C) Nitrogen dioxide
10 Nitrogen trifluoride
100 Nitromethane
25 1-Nitropropane
10 2-Nitropropane
200 Nonane
300 Octane
0.01 Organomercury compounds
0.0002 Osmium tetroxide (as Os)
0.1 Ozone
75 p-Dichlorobenzene
1* p-Nitroaniline
10 p-t-Butyltoluene
2 p-Toluidine
0.005 Pentaborane
600 Pentane
200 2-Pentanone (Methyl propyl ketone)
0.1 Perchloromethyl mercaptan
3 Perchloryl fluoride
400 Petroleum distillates (Naphtha)
5 Phenol
1 Phenyl ether, vapor
1 Phenyl ether-biphenyl mixture
1 Phenyl glycidyl ether (PGE)
0.5 Phenyl mercaptan
5 Phenylhydrazine
0.01 Phosdrin (Mevinphos)
0.1 Phosgene (Carbonyl chloride)
0.3 Phosphine
0.1 Phosphorous oxychloride
0.2 Phosphorus trichloride
1 Phthalic anhydride
1000 Propane
1 Propargyl alcohol
10 Propionic acid
200 n-Propyl acetate
200 n-Propyl alcohol
25 n-Propyl nitrate
75 Propylene dichloride
0.05 Propylene glycol dinitrate
100 Propylene glycol monomethyl ether
2 Propylene imine
20 Propylene oxide
5 Pyridine
0.1 Quinone
10 Resorcinol
125 sec-Amyl acetate
200 sec-Butyl acetate
100 sec-Butyl alcohol
50 sec-Hexyl acetate
0.05 Selenium hexafluoride (as Se)
5 Silicon tetrahydride
0.1 Stibine
100 Stoddard solvent
100 Styrene
2 Sulfur dioxide
1000 Sulfur hexafluoride
5 Sulfuryl fluoride
0.02 Tellurium hexafluoride (as Te)
200 tert-Butyl acetate
100 tert-Butyl alcohol
100 Tetrachloroethylene
500 1,1,1,2-Tetrachloro-2,2-diF-ethane
500 1,1,2,2-Tetrachloro-1,2-diF-ethane
1 1,1,2,2-Tetrachloro-ethane
200 Tetrahydrofuran
0.5 Tetramethyl succinonitrile
1 Tetranitromethane
1 Thioglycolic acid
0.005 Toluene-2,4-diisocyanate (TDI)
200 Toluene
5 o-Toluidine
0.2 Tributyl phosphate
1 Trichloroacetic acid
350 1,1,1,-Trichloroethane
50 Trichloroethylene
1000 1,1,2-Trichloro-1,2,2-triF-ethane
10 1,1,2-Trichloroethane
10 1,2,3-Trichloropropane
10 Triethylamine
1000 Trifluorobromomethane
0.005 Trimellitic anhydride
25 Trimethyl benzene
2 Trimethyl phosphite
10 Trimethylamine
100 Turpentine
50 Valeraldehyde
10 Vinyl acetate
5 Vinyl bromide
10 Vinyl cyclohexene dioxide
100 Vinyl toluene
100 Xylenes (o-, m-, p- isomers)
2 Xylidine
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