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NIOSH Publication No. 81-123:

Occupational Health Guidelines for Chemical Hazards

January 1981

 

Occupational Health Guidelines for Chemical Hazards summarizes information on permissible exposure limits, chemical and physical properties, and health hazards. It provides recommendations for medical surveillance, respiratory protection, and personal protection and sanitation practices for specific chemicals that have Federal occupational safety and health regulations. These recommendations reflect good industrial hygiene and medical surveillance practices, and their implementation will assist development and maintenance of an effective occupational health program.

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Abstract
Table of Contents
i-xiii 81-123-a.pdf
Table 1 1-31 81-123-b.pdf

  1981
Guidelines
Subsequent Revised
Guidelines
Acetaldehyde 0001.pdf 0001-REV.pdf
Acetic acid 0002.pdf 0002-REV.pdf
Acetic anhydride 0003.pdf 0003-REV.pdf
Acetone 0004.pdf No revision
Acetonitrile 0006.pdf 0006-REV.pdf
2-Acetylaminofluorene 0007.pdf No revision
Acetylene tetrabromide 0009.pdf 0009-REV.pdf
Acetylsalicyclic acid 0010.pdf No revision
Acrolein 0011.pdf 0011-REV.pdf
Acrylamide 0012.pdf 0012-REV.pdf
Acrylic acid 0013.pdf No revision
Acrylonitrile 0014.pdf No revision
Aldrin 0016.pdf No revision
Allyl alcohol 0017.pdf 0017-REV.pdf
Allyl chloride 0018.pdf 0018-REV.pdf
Allyl glycidyl ether 0019.pdf No revision
Allyl propyl disulfide 0020.pdf No revision
4-Aminodiphenyl 0025.pdf No revision
2-Aminopyridine 0026.pdf 0026-REV.pdf
Amitrole 0027.pdf No revision
Ammonia 0028.pdf 0028-REV.pdf
Ammonium chloride fume 0029.pdf No revision
Ammonium sulfamate 0030.pdf 0030-REV.pdf
n-Amyl acetate 0031.pdf 0031-REV.pdf
sec-Amyl acetate 0032.pdf 0032-REV.pdf
Aniline (and homologs) 0033.pdf 0033-REV.pdf
p-Anisidine or o-Anisidine 0034.pdf 0034-REV.pdf
p-Anisidine or o-Anisidine 0035.pdf 0035-REV.pdf
ANTU 0037.pdf 0037-REV.pdf
Arsenic (inorganic compounds, as As) 0038.pdf No revision
Arsine 0040.pdf No revision
Asbestos 0041.pdf No revision
Antimony 0036.pdf No revision
Atrazine 0043.pdf No revision
Azinphos-methyl 0044.pdf 0044-REV.pdf
Barium chloride (as Ba) 0045.pdf No revision
Barium sulfate 0047.pdf No revision
Benomyl 0048.pdf No revision
Benzene 0049.pdf No revision
Benzidine 0051.pdf 0051-REV.pdf
Benzoyl peroxide 0052.pdf 0052-REV.pdf
Benzyl chloride 0053.pdf No revision
Beryllium & beryllium compounds (as Be) 0054.pdf No revision
Bismuth telluride, doped with Selenium Sulfide 0055.pdf No revision
Bismuth telluride, undoped 0056.pdf No revision
Boron oxide 0060.pdf 0060-REV.pdf
Boron tribromide 0061.pdf No revision
Boron trifluoride 0062.pdf 0062-REV.pdf
Bromacil 0063.pdf No revision
Bromine 0064.pdf 0064-REV.pdf
Bromine pentafluoride 0065.pdf No revision
Bromoform 0066.pdf 0066-REV.pdf
1,3-Butadiene 0067.pdf 0067-REV.pdf
n-Butane 0068.pdf No revision
2-Butanone 0069.pdf No revision
2-Butoxyethanol 0070.pdf 0070-REV.pdf
n-Butyl acetate 0072.pdf 0072-REV.pdf
sec-Butyl acetate 0073.pdf 0073-REV.pdf
tert-Butyl acetate 0074.pdf 0074-REV.pdf
Butyl acrylate 0075.pdf No revision
n-Butyl alcohol 0076.pdf 0076-REV.pdf
sec-Butyl alcohol 0077.pdf 0077-REV.pdf
tert-Butyl alcohol 0078.pdf 0078-REV.pdf
n-Butylamine 0079.pdf 0079-REV.pdf
tert-Butyl chromate 0080.pdf 0080-REV.pdf
n-Butyl glycidyl ether 0081.pdf No revision
n-Butyl lactate 0082.pdf No revision
n-Butyl mercaptan 0083.pdf No revision
o-sec-Butylphenol 0084.pdf No revision
p-tert-Butyltoluene 0085.pdf 0085-REV.pdf
Cadmium dust (as Cd) 0087.pdf No revision
Cadmium fume (as Cd) 0088.pdf No revision
Calcium carbonate 0090.pdf No revision
Calcium cyanamide 0091.pdf No revision
Calcium hydroxide 0092.pdf No revision
Calcium oxide 0093.pdf 0093-REV.pdf
Calcium silicate 0094.pdf No revision
Calcium sulfate 0095.pdf No revision
Camphor (synthetic) 0096.pdf 0096-REV.pdf
Caprolactam dust 0097.pdf No revision
Caprolactam vapor 0097.pdf No revision
Captafol 0098.pdf No revision
Captan 0099.pdf No revision
Carbaryl 0100.pdf 0100-REV.pdf
Carbofuran 0101.pdf No revision
Carbon black 0102.pdf No revision
Carbon dioxide 0103.pdf No revision
Carbon disulfide 0104.pdf No revision
Carbon monoxide 0105.pdf No revision
Carbon tetrabromide 0106.pdf No revision
Carbon tetrachloride 0107.pdf 0107-REV.pdf
Carbonyl fluoride 0108.pdf No revision
Catechol 0109.pdf No revision
Cellulose 0110.pdf No revision
Cesium hydroxide 0111.pdf No revision
Chlordane 0112.pdf No revision
Chlorinated camphene 0113.pdf No revision
Chlorinated diphenyl oxide 0114.pdf No revision
Chlorine 0115.pdf No revision
Chlorine dioxide 0116.pdf No revision
Chlorine trifluoride 0117.pdf No revision
Chloroacetaldehyde 0118.pdf No revision
alpha-Chloroacetophenone 0119.pdf No revision
Chloroacetyl chloride 0120.pdf No revision
Chlorobenzene 0121.pdf 0121-REV.pdf
o-Chlorobenzylidene malononitrile 0122.pdf 0122-REV.pdf
Chlorobromomethane 0123.pdf No revision
Chlorodifluoromethane 0124.pdf No revision
Chlorodiphenyl (42% chlorine) 0125.pdf No revision
Chlorodiphenyl (54% chlorine) 0126.pdf No revision
Chloroform 0127.pdf No revision
bis-Chloromethyl ether 0128.pdf No revision
Chloromethyl methyl ether 0129.pdf No revision
Chloropentafluoroethane 0131.pdf No revision
Chloropicrin 0132.pdf 0132-REV.pdf
beta-Chloroprene 0133.pdf 0133-REV.pdf
o-Chlorostyrene 0134.pdf No revision
2-Chloro-6-trichloromethyl pyridine 0136.pdf No revision
o-Chlorotoluene 0135.pdf No revision
Chlorpyrifos 0137.pdf No revision
Chromic acid and chromates 0138.pdf No revision
Chromium(III) compounds (as Cr) 0140.pdf No revision
Chromium metal 0141.pdf No revision
Clopidol 0143.pdf No revision
Coal tar pitch volatiles 0145.pdf No revision
Cobalt carbonyl (as Co) 0147.pdf No revision
Cobalt hydrocarbonyl(as Co)> 0148.pdf No revision
Cobalt metal dust and fume (as Co) 0146.pdf No revision
Copper (dusts and mists, as Cu) 0150.pdf No revision
Copper fume (as Cu) 0151.pdf No revision
Cotton dust (raw) 0152.pdf No revision
Crag 0153.pdf No revision
m-Cresol 0155.pdf No revision
o-Cresol 0154.pdf No revision
p-Cresol 0156.pdf No revision
Crotonaldehyde 0157.pdf No revision
rufomate 0158.pdf No revision
Cumene 0159.pdf No revision
Cyanogen 0161.pdf No revision
Cyanogen chloride 0162.pdf No revision
Cyclohexane 0163.pdf No revision
Cyclohexanol 0165.pdf No revision
Cyclohexanone 0166.pdf No revision
Cyclohexene 0167.pdf No revision
Cyclohexylamine 0168.pdf No revision
Cyclonite 0169.pdf No revision
Cyclopentadiene 0170.pdf No revision
Cyclopentane 0171.pdf No revision
2,4-D 0173.pdf No revision
DDT 0174.pdf No revision
Decaborane 0175.pdf 0175-REV.pdf
Demeton 0177.pdf No revision
Diacetone alcohol 0178.pdf No revision
Diazinon® 0181.pdf No revision
Diazomethane 0182.pdf No revision
Diborane 0183.pdf No revision
1,2-Dibromo-3-chloropropane 0184.pdf No revision
2-N-Dibutylaminoethanol 0185.pdf No revision
Dibutyl phosphate 0186.pdf No revision
Dibutyl phthalate 0187.pdf No revision
Dichloroacetylene 0188.pdf No revision
o-Dichlorobenzene 0189.pdf No revision
p-Dichlorobenzene 0190.pdf No revision
3,3'-Dichlorobenzidine (and its salts) 0191.pdf No revision
Dichlorodifluoromethane 0192.pdf No revision
1,3-Dichloro-5,5-dimethylhydantoin 0193.pdf No revision
1,1-Dichloroethane 0194.pdf No revision
1,2-Dichloroethylene 0195.pdf No revision
Dichloroethyl ether 0196.pdf No revision
Dichloromonofluoromethane 0197.pdf No revision
1,1-Dichloro-1-nitroethane 0198.pdf No revision
1,3-Dichloropropene 0199.pdf No revision
2,2-Dichloropropionic acid 0200.pdf No revision
Dichlorotetrafluoroethane 0201.pdf No revision
Dichlorvos 0202.pdf No revision
Dicrotophos 0203.pdf No revision
Dicyclopentadiene 0204.pdf No revision
Dicyclopentadienyl iron 0205.pdf No revision
Dieldrin 0206.pdf No revision
Diethanolamine 0208.pdf No revision
Diethylamine 0209.pdf No revision
2-Diethylaminoethanol 0210.pdf No revision
Diethylenetriamine 0211.pdf No revision
Diethyl phthalate 0213.pdf No revision
Difluorodibromomethane 0214.pdf No revision
Diglycidyl ether 0215.pdf No revision
Diisobutyl ketone 0216.pdf No revision
Diisopropylamine 0217.pdf No revision
Dimethyl acetamide 0218.pdf No revision
Dimethylamine 0219.pdf No revision
4-Dimethylaminoazobenzene 0220.pdf No revision
N,N-Dimethylaniline 0223.pdf No revision
Dimethyl-1,2-dibromo-2,2-dichlorethylph 0225.pdf No revision
Dimethylformamide 0226.pdf No revision
1,1-Dimethylhydrazine 0227.pdf No revision
Dimethylphthalate 0228.pdf No revision
Dimethyl sulfate 0229.pdf No revision
Dinitolmide 0230.pdf No revision
o-Dinitrobenzene 0231.pdf No revision
Dinitro-o-cresol 0234.pdf No revision
Dinitrotoluene 0235.pdf No revision
Di-sec octyl phthalate 0236.pdf No revision
Dioxane 0237.pdf No revision
Diphenyl 0239.pdf No revision
Dipropylene glycol methyl ether 0241.pdf No revision
Dipropyl ketone 0242.pdf No revision
Disulfiram 0244.pdf No revision
Diuron 0247.pdf No revision
Endosulfan 0251.pdf No revision
Endrin 0252.pdf No revision
Epichlorohydrin 0254.pdf No revision
EPN 0255.pdf No revision
Ethanolamine 0256.pdf No revision
Ethion 0257.pdf No revision
2-Ethoxyethanol 0258.pdf No revision
2-Ethoxyethyl acetate 0259.pdf No revision
Ethyl acetate 0260.pdf No revision
Ethyl acrylate 0261.pdf No revision
Ethylamine 0263.pdf No revision
Ethyl benzene 0264.pdf No revision
Ethyl bromide 0265.pdf No revision
Ethyl butyl ketone 0266.pdf No revision
Ethyl chloride 0267.pdf No revision
Ethylene chlorohydrin 0268.pdf No revision
Ethylenediamine 0269.pdf No revision
Ethylene dibromide 0270.pdf No revision
Ethylene dichloride 0271.pdf No revision
Ethylene glycol 0272.pdf No revision
Ethylene glycol dinitrate 0273.pdf No revision
Ethyleneimine 0274.pdf No revision
Ethylene oxide 0275.pdf No revision
Ethyl ether 0277.pdf No revision
Ethyl formate 0278.pdf No revision
Ethylidene norbornene 0279.pdf No revision
Ethyl mercaptan 0280.pdf No revision
N-Ethylmorpholine 0281.pdf No revision
Ethyl silicate 0282.pdf No revision
Ferbam 0286.pdf No revision
Ferrovanadium dust 0287.pdf No revision
Fluorine 0289.pdf No revision
Fluorotrichloromethane 0290.pdf No revision
Formaldehyde 0293.pdf No revision
Formic acid 0296.pdf No revision
Furfural 0297.pdf No revision
Furfuryl alcohol 0298.pdf No revision
Glycidol 0303.pdf No revision
Graphite (natural) 0306.pdf No revision
Hafnium 0309.pdf No revision
Heptachlor 0311.pdf No revision
n-Heptane 0312.pdf No revision
Hexachloroethane 0316.pdf No revision
Hexachloronaphthalene 0317.pdf No revision
n-Hexane 0322.pdf No revision
2-Hexanone 0325.pdf No revision
Hexone 0326.pdf No revision
sec-Hexyl acetate 0327.pdf No revision
Hydrazine 0329.pdf No revision
Hydrogen bromide 0331.pdf No revision
Hydrogen chloride 0332.pdf No revision
Hydrogen cyanide 0333.pdf No revision
Hydrogen fluoride (as F) 0334.pdf No revision
Hydrogen peroxide 0335.pdf No revision
Hydrogen selenide 0336.pdf No revision
Hydrogen sulfide 0337.pdf No revision
Hydroquinone 0338.pdf No revision
Iodine 0342.pdf No revision
Iron oxide dust and fume (as Fe) 0344.pdf No revision
Isoamyl acetate 0347.pdf No revision
Isoamyl alcohol (primary) 0348.pdf No revision
Isoamyl alcohol (secondary) 0349.pdf No revision
Isobutyl acetate 0351.pdf No revision
Isobutyl alcohol 0352.pdf No revision
Isophorone 0355.pdf No revision
Isopropyl acetate 0358.pdf No revision
Isopropyl alcohol 0359.pdf No revision
Isopropylamine 0360.pdf No revision
Isopropyl ether 0362.pdf No revision
Isopropyl glycidyl ether 0363.pdf No revision
Ketene 0367.pdf No revision
Lead 0368.pdf No revision
Lindane 0370.pdf No revision
Lithium hydride 0371.pdf No revision
L.P.G. 0372.pdf No revision
Magnesium oxide fume 0374.pdf No revision
Malathion 0375.pdf No revision
Maleic anhydride 0376.pdf No revision
Manganese compounds and fume (as Mn) 0379.pdf No revision
Mercury compounds [except (organo) alkyl 0383.pdf No revision
Mercury (organo) alkyl compounds (as Hg) 0384.pdf No revision
Mesityl oxide 0385.pdf No revision
Methoxychlor 0388.pdf No revision
Methyl acetate 0391.pdf No revision
Methyl acetylene 0392.pdf No revision
Methyl acetylene-propadiene mixture 0393.pdf No revision
Methyl acrylate 0394.pdf No revision
Methylal 0396.pdf No revision
Methyl alcohol 0397.pdf No revision
Methylamine 0398.pdf No revision
Methyl (n-amyl) ketone 0399.pdf No revision
Methyl bromide 0400.pdf No revision
Methyl Cellosolve 0401.pdf No revision
Methyl Cellosolve acetate 0402.pdf No revision
Methyl chloride 0403.pdf No revision
Methyl chloroform 0404.pdf No revision
Methylcyclohexane 0406.pdf No revision
Methylcyclohexanol 0407.pdf No revision
o-Methylcyclohexanone 0408.pdf No revision
Methylene bisphenyl isocyanate 0413.pdf No revision
Methylene chloride 0414.pdf No revision
Methyl formate 0417.pdf No revision
5-Methyl-3-heptanone 0418.pdf No revision
Methyl hydrazine 0419.pdf No revision
Methyl iodide 0420.pdf No revision
Methyl isobutyl carbinol 0422.pdf No revision
Methyl isocyanate 0423.pdf No revision
Methyl mercaptan 0425.pdf No revision
Methyl methacrylate 0426.pdf No revision
alpha-Methyl styrene 0429.pdf No revision
Mica (containing less than 1% quartz) 0431.pdf No revision
Molybdenum 0433.pdf No revision
Molybdenum (soluble compounds, as Mo) 0434.pdf No revision
Monomethyl aniline 0436.pdf No revision
Morpholine 0437.pdf No revision
Naphtha (coal tar) 0438.pdf No revision
Naphthalene 0439.pdf No revision
alpha-Naphthylamine 0441.pdf No revision
beta-Naphthylamine 0442.pdf No revision
Nickel carbonyl 0444.pdf No revision
Nickel metal and other compounds (as Ni) 0445.pdf No revision
Nicotine 0446.pdf No revision
Nitric acid 0447.pdf No revision
Nitric oxide 0448.pdf No revision
p-Nitroaniline 0449.pdf No revision
Nitrobenzene 0450.pdf No revision
4-Nitrobiphenyl 0451.pdf No revision
p-Nitrochlorobenzene 0452.pdf No revision
Nitroethane 0453.pdf No revision
Nitrogen dioxide 0454.pdf No revision
Nitrogen trifluoride 0455.pdf No revision
Nitroglycerine 0456.pdf No revision
Nitromethane 0457.pdf No revision
1-Nitropropane 0459.pdf No revision
2-Nitropropane 0460.pdf No revision
N-Nitrosodimethylamine 0461.pdf No revision
o-Nitrotoluene 0462.pdf No revision
m-Nitrotoluene 0463.pdf No revision
p-Nitrotoluene 0464.pdf No revision
Octachloronaphthalene 0468.pdf No revision
Octane 0470.pdf No revision
Oil mist (mineral) 0472.pdf No revision
Osmium tetroxide 0473.pdf No revision
Oxalic acid 0474.pdf No revision
Oxygen difluoride 0475.pdf No revision
Ozone 0476.pdf No revision
Paraquat (Paraquat dichloride) 0478.pdf No revision
Parathion 0479.pdf No revision
Pentaborane 0481.pdf No revision
Pentachloronaphthalene 0483.pdf No revision
Pentachlorophenol 0484.pdf No revision
n-Pentane 0486.pdf No revision
2-Pentanone 0488.pdf No revision
Perchloromethyl mercaptan 0489.pdf No revision
Perchloryl fluoride 0490.pdf No revision
Petroleum distillates (naphtha) 0492.pdf No revision
Phenol 0493.pdf No revision
p-Phenylene diamine 0495.pdf No revision
Phenyl ether (vapor) 0496.pdf No revision
Phenyl ether-biphenyl mixture (vapor) 0497.pdf No revision
Phenyl glycidyl ether 0498.pdf No revision
Phenylhydrazine 0499.pdf No revision
Phosdrin 0503.pdf No revision
Phosgene 0504.pdf No revision
Phosphine 0505.pdf No revision
Phosphoric acid 0506.pdf No revision
Phosphorus (yellow) 0507.pdf No revision
Phosphorus pentachloride 0509.pdf No revision
Phosphorus pentasulfide 0510.pdf No revision
Phosphorus trichloride 0511.pdf No revision
Phthalic anhydride 0512.pdf No revision
Picric acid 0515.pdf No revision
Pival 0516.pdf No revision
Platinum (soluble salts, as Pt) 0520.pdf No revision
Portland cement 0521.pdf 0521-REV.pdf
Potassium cyanide (as CN) 0522.pdf No revision
Propane 0524.pdf No revision
beta-Propiolactone 0528.pdf No revision
n-Propyl acetate 0532.pdf No revision
n-Propyl alcohol 0533.pdf No revision
Propylene dichloride 0534.pdf No revision
Propylene imine 0537.pdf No revision
Propylene oxide 0538.pdf No revision
n-Propyl nitrate 0539.pdf No revision
Pyrethrum 0540.pdf No revision
Pyridine 0541.pdf No revision
Quinone 0542.pdf No revision
Rhodium (metal fume and insoluble compou 0544.pdf No revision
Rhodium (soluble compounds, as Rh) 0545.pdf No revision
Ronnel 0546.pdf No revision
Rotenone 0548.pdf No revision
Selenium 0550.pdf No revision
Selenium hexafluoride 0551.pdf No revision
Silica, amorphous 0552.pdf No revision
Silica, crystalline (as respirable dust) 0553.pdf No revision
Silver (metal dust and soluble compounds 0557.pdf No revision
Soapstone (containing less than 1% quart 0558.pdf No revision
Sodium fluoride (as F) 0563.pdf No revision
Sodium fluoroacetate 0564.pdf No revision
Sodium hydroxide 0565.pdf No revision
Stibine 0568.pdf No revision
Stoddard solvent 0569.pdf No revision
Strychnine 0570.pdf No revision
Styrene 0571.pdf No revision
Sulfur dioxide 0575.pdf No revision
Sulfuric acid 0577.pdf No revision
Sulfur monochloride 0578.pdf No revision
Sulfur pentafluoride 0579.pdf No revision
Sulfuryl fluoride 0581.pdf No revision
2,4,5-T 0583.pdf No revision
Talc (containing no asbestos and less th 0584.pdf No revision
Tantalum (metal and oxide dust, as Ta) 0585.pdf No revision
TEDP 0586.pdf No revision
Tellurium 0587.pdf No revision
Tellurium hexafluoride 0588.pdf No revision
TEPP 0590.pdf No revision
o-Terphenyl 0591.pdf No revision
m-Terphenyl 0592.pdf No revision
p-Terphenyl 0593.pdf No revision
1,1,1,2-Tetrachloro-2,2- difluoroethane 0595.pdf No revision
1,1,2,2-Tetrachloro-1,2- difluoroethane 0596.pdf No revision
1,1,2,2-Tetrachloroethane 0598.pdf No revision
Tetrachloroethylene 0599.pdf No revision
Tetrachloronaphthalene 0600.pdf No revision
Tetraethyl lead (as Pb) 0601.pdf No revision
Tetrahydrofuran 0602.pdf No revision
Tetramethyl lead (as Pb) 0603.pdf No revision
Tetramethyl succinonitrile 0604.pdf No revision
Tetranitromethane 0605.pdf No revision
Tetryl 0607.pdf No revision
Thallium (soluble compounds, as Tl) 0608.pdf No revision
Thiram 0612.pdf No revision
Tin 0613.pdf No revision
Tin (organic compounds, as Sn) 0614.pdf No revision
Titanium dioxide 0617.pdf No revision
Toluene 0619.pdf No revision
Toluene-2,4-diisocyanate 0621.pdf No revision
o-Toluidine 0622.pdf No revision
Tributyl phosphate 0625.pdf No revision
1,1,2-Trichloroethane 0628.pdf No revision
Trichloroethylene 0629.pdf No revision
Trichloronaphthalene 0630.pdf No revision
1,2,3-Trichloropropane 0631.pdf No revision
1,1,2-Trichloro-1,2,2- trifluoroethane 0632.pdf No revision
Trifluorobromomethane 0634.pdf No revision
Triethylamine 0636.pdf No revision
2,4,6-Trinitrotoluene 0641.pdf No revision
Triorthocresyl phosphate 0642.pdf No revision
Triphenyl phosphate 0644.pdf No revision
Turpentine 0648.pdf No revision
Uranium (insoluble compounds, as U) 0650.pdf No revision
Uranium (soluble compounds, as U) 0651.pdf No revision
Vanadium dust 0653.pdf No revision
Vanadium fume 0654.pdf No revision
Vinyl chloride 0659.pdf No revision
Vinyl toluene 0663.pdf No revision
Warfarin 0665.pdf No revision
o-Xylene 0668.pdf No revision
Xylidine 0672.pdf No revision
Yttrium 0673.pdf No revision
Zinc chloride fume 0674.pdf No revision
Zinc oxide 0675.pdf No revision
Zirconium compounds (as Zr) 0677.pdf No revision