Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide to Chemical Hazards

A-Z

TABLE A
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Acetaldehyde 75-07-0 Prevent skin contact 8 hr: Butyl, Responder, Tychem 4 hr: Teflon, PE/EVAL
Acetic acid 64-19-7 Prevent skin contact 8 hr: Butyl, Teflon, Viton, PE/EVAL, Responder, Tychem 4 hr: Neoprene, Barricade
Acetic anhydride 108-24-7 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade, Trellchem, Tychem 4 hr: Teflon
Acetone 67-64-1 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem
Acetone cyanohydrin 75-86-5 Prevent skin contact Contact the manufacturer for recommendations
Acetonitrile 75-05-8 Prevent skin contact 8 hr: Butyl, Teflon, PE/EVAL, Barricade, Responder, Trellchem, Tychem
2-Acetylaminofluorene 53-96-3 Prevent skin contact Contact the manufacturer for recommendations
Acetylene 74-86-2 Frostbite Prevent possible skin freezing from direct liquid contact
Acetylene tetrabromide 79-27-6 Prevent skin contact Contact the manufacturer for recommendations
Acetylsalicyclic acid 50-78-2 Prevent skin contact Contact the manufacturer for recommendations
Acrolein 107-02-8 Prevent skin contact 8 hr: Butyl, Barricade, Tychem
Acrylamide 79-06-1 Prevent skin contact 8 hr: Butyl, Tychem 4 hr: Nitrile, PVC, Viton, PE/EVAL
Acrylic acid 79-10-7 Prevent skin contact 8 hr: Butyl, Saranex, Responder, Trellchem 4 hr: Teflon, Viton, PE/EVAL
Acrylonitrile 107-13-1 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade, Responder, Tychem
Adiponitrile 111-69-3 Prevent skin contact 4 hr: Teflon
Aldrin 309-00-2 Prevent skin contact Contact the manufacturer for recommendations
Allyl alcohol 107-18-6 Prevent skin contact 8 hr: Butyl, Teflon, Barricade, Responder, Tychem 4 hr: Viton
Allyl chloride 107-05-1 Prevent skin contact 8 hr: Tychem 4 hr: Teflon, PE/EVAL
Allyl glycidyl ether 106-92-3 Prevent skin contact Contact the manufacturer for recommendations
Allyl propyl disulfide 2179-59-1 Prevent skin contact Contact the manufacturer for recommendations
alpha-Alumina 1344-28-1 N.R. Determine based on working conditions
Aluminum 7429-90-5 N.R. Determine based on working conditions
Aluminum (pyro powders and welding fumes, as Al)   N.R. Determine based on working conditions
Aluminum (soluble salts and alkyls, as Al)   N.R. Determine based on working conditions
4-Aminodiphenyl 92-67-1 Prevent skin contact Contact the manufacturer for recommendations
2-Aminopyridine 504-29-0 Prevent skin contact Contact the manufacturer for recommendations
Amitrole 61-82-5 Prevent skin contact Contact the manufacturer for recommendations
Ammonia 7664-41-7 Prevent skin contact 8 hr: Butyl, Teflon, Viton, Responder, Trellchem, Tychem 4 hr: Nitrile
Ammonium chloride fume 12125-02-9 Prevent skin contact Any barrier that will prevent contamination from the dry chemical
Ammonium sulfamate 7773-06-0 Prevent skin contact Contact the manufacturer for recommendations
n-Amyl acetate 628-63-7 Prevent skin contact 8 hr: Barricade, Responder 4 hr: PVA, Teflon
sec-Amyl acetate 626-38-0 Prevent skin contact Contact the manufacturer for recommendations
Aniline (and homologs) 62-53-3 Prevent skin contact 8 hr: Butyl, PVA, PE/EVAL, Barricade, Responder, Trellchem 4 hr: Teflon, Viton, Saranex
o-Anisidine 90-04-0 Prevent skin contact Contact the manufacturer for recommendations
p-Anisidine 104-94-9 Prevent skin contact Contact the manufacturer for recommendations
Antimony 7440-36-0 Prevent skin contact Any barrier that will prevent contamination from the dry chemical
ANTU 86-88-4 Prevent skin contact Contact the manufacturer for recommendations
Arsenic (inorganic compounds, as As) 7440-38-2 (metal) Prevent skin contact Contact the manufacturer for recommendations
Arsenic, organic compounds (as As)   Recommendations regarding personal protective clothing vary depending upon the specific compound Contact the manufacturer for recommendations
Arsine 7784-42-1 Prevent skin contact/ Frostbite Contact the manufacturer for recommendations Prevent possible skin freezing from direct liquid contact
Asbestos 1332-21-4 Prevent skin contact Any barrier that will prevent contamination from the fiber
Asphalt fumes 8052-42-4 Prevent skin contact Contact the manufacturer for recommendations
Atrazine 1912-24-9 Prevent skin contact Contact the manufacturer for recommendations
Azinphos-methyl 86-50-0 Prevent skin contact 8 hr: Neoprene, Nitrile

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. *Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE B
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Barium chloride (as Ba) 10361-37-2 Prevent skin contact Contact the manufacturer for recommendations
Barium nitrate (as Ba) 10022-31-8 Prevent skin contact Contact the manufacturer for recommendations
Barium sulfate 7727-43-7 Prevent skin contact Contact the manufacturer for recommendations
Benomyl 17804-35-2 Prevent skin contact Contact the manufacturer for recommendations
Benzene 71-43-2 Prevent skin contact 8 hr: PVA, PE/EVAL, Barricade, CPF3, Responder, Tychem 4 hr: Teflon, Viton
Benzenethiol 108-98-5 Prevent skin contact Contact the manufacturer for recommendations
Benzidine 92-87-5 Prevent skin contact Contact the manufacturer for recommendations
Benzoyl peroxide 94-36-0 Prevent skin contact Contact the manufacturer for recommendations
Benzyl chloride 100-44-7 Prevent skin contact 8 hr: PE/EVAL, CPF3, Responder, Tychem 4 hr: Teflon
Beryllium & beryllium compounds (as Be) 7440-41-7 (metal) Prevent skin contact Contact the manufacturer for recommendations
Bismuth telluride, doped with Selenium sulfide (as Bi2Te3)   Prevent skin contact Contact the manufacturer for recommendations
Bismuth telluride, undoped 1304-82-1 Prevent skin contact Contact the manufacturer for recommendations
Borates, tetra, sodium salts (Anhydrous) 1330-43-4 N.R. Determine based on working conditions
Borates, tetra, sodium salts (Decahydrate) 1303-96-4 N.R. Determine based on working conditions
Borates, tetra, sodium salts (Pentahydrate) 12179-04-3 N.R. Determine based on working conditions
Boron oxide 1303-86-2 Prevent skin contact Contact the manufacturer for recommendations
Boron tribromide 10294-33-4 Prevent skin contact Contact the manufacturer for recommendations
Boron trifluoride 7637-07-2 Prevent skin contact 8 hr: Teflon, Responder
Bromacil 314-40-9 Prevent skin contact Contact the manufacturer for recommendations
Bromine 7726-95-6 Prevent skin contact 4 hr: Teflon
Bromine pentafluoride 7789-30-2 Prevent skin contact Contact the manufacturer for recommendations
Bromoform 75-25-2 Prevent skin contact 8 hr: PVA, Viton
1,3-Butadiene 106-99-0 Prevent skin contact 8 hr: Viton, Saranex, Barricade, CPF3, Responder, Trellchem, Tychem 4 hr: Teflon
n-Butane 106-97-8 Frostbite Prevent possible skin freezing from direct liquid contact
2-Butanone 78-93-3 Prevent skin contact 8 hr: Butyl, Teflon, PE/EVAL, Barricade, CPF3, Tychem 4 hr: Responder
2-Butoxyethanol 111-76-2 Prevent skin contact 8 hr: Butyl, Viton, Saranex 4 hr: PE/EVAL
2-Butoxyethanol acetate 112-07-2 Prevent skin contact Contact the manufacturer for recommendations
n-Butyl acetate 123-86-4 Prevent skin contact 8 hr: PE/EVAL 4 hr: PVA, Teflon
sec-Butyl acetate 105-46-4 Prevent skin contact Contact the manufacturer for recommendations
tert-Butyl acetate 540-88-5 Prevent skin contact Contact the manufacturer for recommendations
Butyl acrylate 141-32-2 Prevent skin contact 8 hr: PE/EVAL, Responder, Tychem 4 hr: Teflon
n-Butyl alcohol 71-36-3 Prevent skin contact 8 hr: Butyl, Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder 4 hr: Neoprene
sec-Butyl alcohol 78-92-2 Prevent skin contact 8 hr: PE/EVAL 4 hr: Butyl, Nitrile
tert-Butyl alcohol 75-65-0 Prevent skin contact 8 hr: Butyl, PE/EVAL, Responder
n-Butylamine 109-73-9 Prevent skin contact 8 hr: Responder, Tychem 4 hr: Trellchem
tert-Butyl chromate 1189-85-1 Prevent skin contact Contact the manufacturer for recommendations
n-Butyl glycidyl ether 2426-08-6 Prevent skin contact Contact the manufacturer for recommendations
n-Butyl lactate 138-22-7 Prevent skin contact Contact the manufacturer for recommendations
n-Butyl mercaptan 109-79-5 Prevent skin contact Contact the manufacturer for recommendations
o-sec-Butylphenol 89-72-5 Prevent skin contact Contact the manufacturer for recommendations
p-tert-Butyltoluene 98-51-1 Prevent skin contact 8 hr: PVA, Viton 4 hr: Nitrile, PE/EVAL
n-Butyronitrile 109-74-0 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE C
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Cadmium dust (as Cd) 7440-43-9 (metal) Prevent skin contact Any barrier that will prevent contamination from the dry chemical
Cadmium fume (as Cd) 1306-19-0 (CdO) Prevent skin contact 8 hr: Neoprene, Nitrile
Calcium arsenate (as As) 7778-44-1 Prevent skin contact Contact the manufacturer for recommendations
Calcium carbonate 1317-65-3 N.R. Determine based on working conditions
Calcium cyanamide 156-62-7 Prevent skin contact Contact the manufacturer for recommendations
Calcium hydroxide 1305-62-0 Prevent skin contact 8 hr: Natural, Neoprene, Nitrile
Calcium oxide 1305-78-8 Prevent skin contact Any barrier that will prevent contamination from the dry chemical
Calcium silicate 1344-95-2 N.R. Determine based on working conditions
Calcium sulfate 7778-18-9 N.R. Determine based on working conditions
Camphor (synthetic) 76-22-2 Prevent skin contact Contact the manufacturer for recommendations
Caprolactam 105-60-2 Prevent skin contact Contact the manufacturer for recommendations
Captafol 2425-06-1 Prevent skin contact Contact the manufacturer for recommendations
Captan 133-06-2 Prevent skin contact Contact the manufacturer for recommendations
Carbaryl 63-25-2 Prevent skin contact (Sevin 50 W) 4 hr: Natural, Neoprene, Nitrile, PVC
Carbofuran 1563-66-2 Prevent skin contact Contact the manufacturer for recommendations
Carbon black 1333-86-4 N.R. Determine based on working conditions
Carbon dioxide 124-38-9 Frostbite Prevent possible skin freezing from direct liquid contact
Carbon disulfide 75-15-0 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, Responder, Trellchem, Tychem 4 hr: Teflon
Carbon monoxide 630-08-0 Frostbite Prevent possible skin freezing from direct liquid contact
Carbon tetrabromide 558-13-4 N.R. Determine based on working conditions
Carbon tetrachloride 56-23-5 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, Responder 4 hr: Teflon
Carbonyl fluoride 353-50-4 Frostbite Prevent possible skin freezing from direct liquid contact
Catechol 120-80-9 N.R. Determine based on working conditions
Cellulose 9004-34-6 N.R. Determine based on working conditions
Cesium hydroxide 21351-79-1 Prevent skin contact Contact the manufacturer for recommendations
Chlordane 57-74-9 Prevent skin contact 8 hr: CPF3, Trellchem 4 hr: Teflon
Chlorinated camphene 8001-35-2 Prevent skin contact Contact the manufacturer for recommendations
Chlorinated diphenyl oxide   Prevent skin contact Contact the manufacturer for recommendations
Chlorine 7782-50-5 Frostbite Prevent possible skin freezing from direct liquid contact
Chlorine dioxide 10049-04-4 Prevent skin contact (liquid) Contact the manufacturer for recommendations
Chlorine trifluoride 7790-91-2 Prevent skin contact Contact the manufacturer for recommendations
Chloroacetaldehyde 107-20-0 Prevent skin contact Contact the manufacturer for recommendations
alpha-Chloroacetophenone 532-27-4 Prevent skin contact 8 hr: Responder
Chloroacetyl chloride 79-04-9 Prevent skin contact 4 hr: Teflon
Chlorobenzene 108-90-7 Prevent skin contact 8 hr: Viton, Barricade, Responder, Trellchem, Tychem 4 hr: PVA, Teflon
o-Chlorobenzylidene malononitrile 2698-41-1 Prevent skin contact Contact the manufacturer for recommendations
Chlorobromomethane 74-97-5 Prevent skin contact 4 hr: Teflon, Responder
Chlorodifluoromethane 75-45-6 Frostbite Prevent possible skin freezing from direct liquid contact
Chlorodiphenyl (42% chlorine) 53469-21-9 Prevent skin contact 8 hr: Butyl, Neoprene, Teflon, Viton, Saranex, Barricade, Responder 4 hr: PE/EVAL
Chlorodiphenyl (54% chlorine) 11097-69-1 Prevent skin contact 8 hr: Butyl, Neoprene, Teflon, Viton, Saranex, Barricade, Responder 4 hr: PE/EVAL
Chloroform 67-66-3 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, Responder, Trellchem, Tychem 4 hr: Teflon
bis-Chloromethyl ether 542-88-1 Prevent skin contact Contact the manufacturer for recommendations
Chloromethyl methyl ether 107-30-2 Prevent skin contact 4 hr: Teflon
1-Chloro1-nitropropane 600-25-9 Prevent skin contact Contact the manufacturer for recommendations
Chloropentafluoroethane 76-15-3 Frostbite Prevent possible skin freezing from direct liquid contact
Chloropicrin 76-06-2 Prevent skin contact Contact the manufacturer for recommendations
ß-Chloroprene 126-99-8 Prevent skin contact 8 hr: PVA, Viton, Responder
o-Chlorostyrene 2039-87-4 Prevent skin contact Contact the manufacturer for recommendations
o-Chlorotoluene 95-49-8 Prevent skin contact 8 hr: Barricade 4 hr: Viton
2-Chloro-6-trichloro- methyl pyridine 1929-82-4 Prevent skin contact Contact the manufacturer for recommendations
Chlorpyrifos 2921-88-2 Prevent skin contact Contact the manufacturer for recommendations
Chromic acid and chromates 1338-82-0 (CrO3) Prevent skin contact (As Chromic Acid) 8 hr: PE, PVC, Saranex 4 hr: Butyl, Viton
Chromium(II) compounds (as Cr)   Prevent skin contact Contact the manufacturer for recommendations for the specific compound
Chromium(III) compounds (as Cr)   Prevent skin contact Contact the manufacturer for recommendations for the specific compound
Chromium metal 7440-47-3 N.R. Determine based on working conditions
Chromyl chloride 14977-61-8 Prevent skin contact Contact the manufacturer for recommendations
Clopidol 2971-90-6 N.R. Determine based on working conditions
Coal dust   N.R. Determine based on working conditions
Coal tar pitch volatiles 65996-93-2 Prevent skin contact Contact the manufacturer for recommendations
Cobalt metal dust and fume (as Co) 7440-48-4 Prevent skin contact Contact the manufacturer for recommendations
Cobalt carbonyl (as Co) 10210-68-1 Prevent skin contact Contact the manufacturer for recommendations
Cobalt hydrocarbonyl (as Co) 16842-03-8 Prevent skin contact Contact the manufacturer for recommendations
Coke oven emissions   Prevent skin contact Recommendations will depend on specific nature of emissions
Copper (dusts and mists, as Cu) 7440-50-8 Prevent skin contact Contact the manufacturer for recommendations
Copper fume (as Cu) 1317-38-0 (CuO) N.R. Determine based on working conditions
Cotton dust (raw)   N.R. Determine based on working conditions
Crag® herbicide 136-78-7 Prevent skin contact Contact the manufacturer for recommendations
o-Cresol 95-48-7 Prevent skin contact Contact the manufacturer for recommendations
m-Cresol 108-39-4 Prevent skin contact 4 hr: Neoprene, Teflon
p-Cresol 106-44-5 Prevent skin contact 4 hr: PE/EVAL
Crotonaldehyde 4170-30-3 Prevent skin contact 8 hr: Butyl, Responder 4 hr: Teflon
Crufomate 299-86-5 Prevent skin contact Contact the manufacturer for recommendations
Cumene 98-82-8 Prevent skin contact 8 hr: Tychem 4 hr: Teflon
Cyanamide 420-04-2 Prevent skin contact Contact the manufacturer for recommendations
Cyanogen 460-19-5 Frostbite Prevent possible skin freezing from direct liquid contact
Cyanogen chloride 506-77-4 Prevent skin contact (liquid) 4 hr: Teflon
Cyclohexane 110-82-7 Prevent skin contact 8 hr: Nitrile, Viton, PE/EVAL, Barricade, Responder 4 hr: PVA, Teflon
Cyclohexanethiol 1569-69-3 Prevent skin contact Contact the manufacturer for recommendations
Cyclohexanol 108-93-0 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, Teflon, Viton 4 hr: Neoprene, PVC, PE/EVAL
Cyclohexanone 108-94-1 Prevent skin contact 8 hr: Butyl, PE/EVAL 4 hr: PVA
Cyclohexene 110-83-8 Prevent skin contact Contact the manufacturer for recommendations
Cyclohexylamine 108-91-8 Prevent skin contact 8 hr: Responder
Cyclonite 121-82-4 Prevent skin contact Contact the manufacturer for recommendations
Cyclopentadiene 542-92-7 Prevent skin contact Contact the manufacturer for recommendations
Cyclopentane 287-92-3 Prevent skin contact Contact the manufacturer for recommendations
Cyhexatin 13121-70-5 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE D
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
2,4-D 94-75-7 Prevent skin contact 8 hr: Natural, Neoprene, Nitrile, PVC
DDT 50-29-3 Prevent skin contact (No longer manufactured) Any barrier that will prevent contamination from the dry chemical
Decaborane 17702-41-9 Prevent skin contact Any barrier that will prevent contamination from the dry chemical
1-Decanethiol 143-10-2 Prevent skin contact Contact the manufacturer for recommendations
Demeton 8065-48-3 Prevent skin contact Contact the manufacturer for recommendations
Diacetone alcohol 123-42-2 Prevent skin contact 8 hr: Butyl 4 hr: Neoprene, PE/EVAL
2,4-Diaminoanisole (and its salts) 615-05-4 Prevent skin contact Contact the manufacturer for recommendations
o-Dianisidine 119-90-4 Prevent skin contact Contact the manufacturer for recommendations
Diazinon® 333-41-5 Prevent skin contact Contact the manufacturer for recommendations
Diazomethane 334-88-3 Frostbite Prevent possible skin freezing from direct liquid contact
Diborane 19287-45-7 N.R. Determine based on working conditions
1,2-Dibromo-3-chloro-propane 96-12-8 Prevent skin contact Contact the manufacturer for recommendations
2-N-Dibutylaminoethanol 102-81-8 Prevent skin contact Contact the manufacturer for recommendations
Dibutyl phosphate 107-66-4 Prevent skin contact Contact the manufacturer for recommendations
Dibutyl phthalate 84-74-2 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, Viton 4 hr: PE/EVAL
Dichloroacetylene 7572-29-4 Prevent skin contact Contact the manufacturer for recommendations
o-Dichlorobenzene 95-50-1 Prevent skin contact 4 hr: Viton, PE/EVAL
p-Dichlorobenzene 106-46-7 Prevent skin contact Contact the manufacturer for recommendations
3,3′-Dichlorobenzidine (and its salts) 91-94-1 Prevent skin contact Contact the manufacturer for recommendations
Dichlorodifluoromethane 75-71-8 Frostbite Prevent possible skin freezing from direct liquid contact
1,3-Dichloro-5,5- dimethylhydantoin 118-52-5 Prevent skin contact Contact the manufacturer for recommendations
1,1-Dichloroethane 75-34-3 Prevent skin contact 8 hr: Tychem
1,2-Dichloroethylene 540-59-0 Prevent skin contact 8 hr: Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder, Tychem 4 hr: PVA
Dichloroethyl ether 111-44-4 Prevent skin contact 8 hr: Tychem 4 hr: Teflon
Dichloromonofluoromethane 75-43-4 Frostbite Prevent possible skin freezing from direct liquid contact
1,1-Dichloro-1-nitroethane 594-72-9 Prevent skin contact Contact the manufacturer for recommendations
1,3-Dichloropropene 542-75-6 Prevent skin contact 8 hr: PVA, Viton, Responder 4 hr: Teflon
2,2-Dichloropropionic acid 75-99-0 Prevent skin contact Contact the manufacturer for recommendations
Dichlorotetrafluoroethane 76-14-2 Frostbite Prevent possible skin freezing from direct liquid contact
Dichlorvos 62-73-7 Prevent skin contact Contact the manufacturer for recommendations
Dicrotophos 141-66-2 Prevent skin contact Contact the manufacturer for recommendations
Dicyclopentadiene 77-73-6 Prevent skin contact Contact the manufacturer for recommendations
Dicyclopentadienyl iron 102-54-5 N.R. Determine based on working conditions
Dieldrin 60-57-1 Prevent skin contact Contact the manufacturer for recommendations
Diesel exhaust   N.R. Determine based on working conditions
Diethanolamine 111-42-2 Prevent skin contact 8 hr: Butyl, Neoprene, Nitrile, PVC, Viton, CPF3, Responder 4 hr: Natural, Teflon, PE/EVAL
Diethylamine 109-89-7 Prevent skin contact Contact the manufacturer for recommendations
2-Diethylaminoethanol 100-37-8 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, Viton
Diethylenetriamine 111-40-0 Prevent skin contact 8 hr: Butyl, Neoprene, Viton, Tychem 4 hr: PE/EVAL
Diethyl ketone 96-22-0 N.R. Determine based on working conditions
Diethyl phthalate 84-66-2 Prevent skin contact 4 hr: PE/EVAL
Difluorodibromomethane 75-61-6 Prevent skin contact Contact the manufacturer for recommendations
Diglycidyl ether 2238-07-5 Prevent skin contact Contact the manufacturer for recommendations
Diisobutyl ketone 108-83-8 Prevent skin contact 4 hr: PVA, PE/EVAL
Diisopropylamine 108-18-9 Prevent skin contact 8 hr: Teflon, Viton
Dimethyl acetamide 127-19-5 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade, CPF3, Responder, Tychem 4 hr: Teflon
Dimethylamine 124-40-3 Prevent skin contact 8 hr: Butyl, Neoprene 4 hr: Teflon, PE/EVAL
4-Dimethylamino- azobenzene 60-11-7 Prevent skin contact Contact the manufacturer for recommendations
bis(2-(Dimethylamino)- ethyl)ether 3033-62-3 Prevent skin contact Contact the manufacturer for recommendations
Dimethylaminopropionitrile 1738-25-6 Prevent skin contact Contact the manufacturer for recommendations
N,N-Dimethylaniline 121-69-7 Prevent skin contact 8 hr: Tychem 4 hr: PE/EVAL
Dimethyl carbamoyl chloride 79-44-7 Prevent skin contact Contact the manufacturer for recommendations
Dimethyl-1,2-dibromo-2,2- dichlorethyl phosphate 300-76-5 Prevent skin contact Contact the manufacturer for recommendations
Dimethylformamide 68-12-2 Prevent skin contact 8 hr: Butyl, Teflon, PE/EVAL, CPF3, Responder, Trellchem, Tychem
1,1-Dimethylhydrazine 57-14-7 Prevent skin contact 8 hr: Butyl, Barricade, Responder, Trellchem, Tychem
Dimethylphthalate 131-11-3 N.R. Determine based on working conditions
Dimethyl sulfate 77-78-1 Prevent skin contact 8 hr: Barricade, Responder, Tychem 4 hr: Butyl, PE/EVAL
Dinitolmide 148-01-6 Prevent skin contact Contact the manufacturer for recommendations
o-Dinitrobenzene 528-29-0 Prevent skin contact Contact the manufacturer for recommendations
m-Dinitrobenzene 99-65-0 Prevent skin contact Contact the manufacturer for recommendations
p-Dinitrobenzene 100-25-4 Prevent skin contact Contact the manufacturer for recommendations
Dinitro-o-cresol 534-52-1 Prevent skin contact Contact the manufacturer for recommendations
Dinitrotoluene 25321-14-6 Prevent skin contact Contact the manufacturer for recommendations
Di-sec octyl phthalate 117-81-7 N.R. Determine based on working conditions
Dioxane 123-91-1 Prevent skin contact 8 hr: PE/EVAL, Tychem 4 hr: Butyl, Teflon
Dioxathion 78-34-2 Prevent skin contact Contact the manufacturer for recommendations
Diphenyl 92-52-4 Prevent skin contact Contact the manufacturer for recommendations
Diphenylamine 122-39-4 Prevent skin contact Contact the manufacturer for recommendations
Dipropylene glycol methyl ether 34590-94-8 N.R. Determine based on working conditions
Dipropyl ketone 123-19-3 Prevent skin contact Contact the manufacturer for recommendations
Diquat (Diquat dibromide) 85-00-7 Prevent skin contact 4 hr: PE/EVAL
Disulfiram 97-77-8 Prevent skin contact Contact the manufacturer for recommendations
Disulfoton 298-04-4 Prevent skin contact Contact the manufacturer for recommendations
2,6-Di-tert-butyl-p-cresol 128-37-0 Prevent skin contact Contact the manufacturer for recommendations
Diuron 330-54-1 Prevent skin contact Contact the manufacturer for recommendations
Divinyl benzene 1321-74-0 (mixed isomers) Prevent skin contact 8 hr: PVA, Viton
1-Dodecanethiol 112-55-0 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE E
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Emery 12415-34-8 (emery) 1302-74-5 (corundum) N.R. Determine based on working conditions
Endosulfan 115-29-7 Prevent skin contact Contact the manufacturer for recommendations
Endrin 72-20-8 Prevent skin contact Contact the manufacturer for recommendations
Enflurane 13838-16-9 N.R. Determine based on working conditions
Epichlorohydrin 106-89-8 Prevent skin contact 8 hr: Butyl, Barricade, Trellchem, Tychem 4 hr: PE/EVAL, Responder
EPN 2104-64-5 Prevent skin contact Contact the manufacturer for recommendations
Ethanolamine 141-43-5 Prevent skin contact 8 hr: Butyl, Neoprene, Nitrile, Viton, PE/EVAL, Tychem 4 hr: PVC
Ethion 563-12-2 Prevent skin contact 4 hr: Teflon
2-Ethoxyethanol 110-80-5 Prevent skin contact 8 hr: Butyl, Saranex, Responder 4 hr: PE/EVAL
2-Ethoxyethyl acetate 111-15-9 Prevent skin contact 8 hr: Butyl, Barricade, Responder 4 hr: PVA, PE/EVAL
Ethyl acetate 141-78-6 Prevent skin contact 8 hr: PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem 4 hr: PVA, Teflon
Ethyl acrylate 140-88-5 Prevent skin contact 8 hr: PVA, Teflon, Responder, Tychem 4 hr: Butyl, PE/EVAL
Ethyl alcohol 64-17-5 Prevent skin contact 8 hr: Butyl, Viton, PE/EVAL 4 hr: Neoprene, Teflon
Ethylamine 75-04-7 Prevent skin contact (liquid) 8 hr: Butyl 4 hr: Teflon, Responder
Ethyl benzene 100-41-4 Prevent skin contact 8 hr: Viton, Barricade, Responder, Tychem 4 hr: Teflon
Ethyl bromide 74-96-4 Prevent skin contact Contact the manufacturer for recommendations
Ethyl butyl ketone 106-35-4 Prevent skin contact Contact the manufacturer for recommendations
Ethyl chloride 75-00-3 Prevent skin contact (liquid) 4 hr: Teflon
Ethylene chlorohydrin 107-07-3 Prevent skin contact 8 hr: Butyl, Viton, PVA, Barricade 4 hr: PE/EVAL
Ethylenediamine 107-15-3 Prevent skin contact 8 hr: Butyl, Saranex, Responder 4 hr: Teflon
Ethylene dibromide 106-93-4 Prevent skin contact 8 hr: PVA, Teflon, Viton, PE/EVAL, Barricade, Tychem
Ethylene dichloride 107-06-2 Prevent skin contact 8 hr: Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder, Tychem 4 hr: PVA
Ethylene glycol 107-21-1 Prevent skin contact 8 hr: Butyl, Natural, Neoprene, Nitrile, PE, PVC, Teflon, Viton, Saranex, PE/EVAL, Trellchem 4 hr: Responder
Ethylene glycol dinitrate 628-96-6 Prevent skin contact Contact the manufacturer for recommendations
Ethyleneimine 151-56-4 Prevent skin contact 8 hr: Butyl, Tychem 4 hr: Teflon, Responder
Ethylene oxide 75-21-8 Prevent skin contact (liquid) 8 hr: Barricade, Responder, Trellchem, Tychem 4 hr: Butyl, Teflon, PE/EVAL
Ethylene thiourea 96-45-7 Prevent skin contact Contact the manufacturer for recommendations
Ethyl ether 60-29-7 Prevent skin contact 8 hr: PVA, PE/EVAL, Barricade 4 hr: Teflon, Responder, Trellchem
Ethyl formate 109-94-4 Prevent skin contact Contact the manufacturer for recommendations
Ethylidene norbornene 16219-75-3 Prevent skin contact Contact the manufacturer for recommendations
Ethyl mercaptan 75-08-1 Prevent skin contact 4 hr: Teflon
N-Ethylmorpholine 100-74-3 Prevent skin contact Contact the manufacturer for recommendations
Ethyl silicate 78-10-4 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE F
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Fenamiphos 22224-92-6 Prevent skin contact Contact the manufacturer for recommendations
Fensulfothion 115-90-2 Prevent skin contact Contact the manufacturer for recommendations
Fenthion 55-38-9 Prevent skin contact Contact the manufacturer for recommendations
Ferbam 14484-64-1 Prevent skin contact Contact the manufacturer for recommendations
Ferrovanadium dust 12604-58-9 N.R. Determine based on working conditions
Fibrous glass dust   Prevent skin contact Any barrier that will prevent contamination from the dust and fiber
Fluorine 7782-41-4 Prevent skin contact (liquid) 8 hr: Barricade, Responder
Fluorotrichloromethane 75-69-4 Prevent skin contact Contact the manufacturer for recommendations
Fluoroxene 406-90-6 N.R. Determine based on working conditions
Fonofos 944-22-9 Prevent skin contact Contact the manufacturer for recommendations
Formaldehyde 50-00-0 Prevent skin contact Contact the manufacturer for recommendations
Formalin (as formaldehyde)   Prevent skin contact 8 hr: Butyl, Nitrile, Viton, Saranex, Barricade, CPF3 4 hr: Teflon, PE/EVAL, Responder
Formamide 75-12-7 N.R. Determine based on working conditions
Formic acid 64-18-6 Prevent skin contact 8 hr: Butyl, Neoprene, Saranex, Barricade, Responder, Trellchem 4 hr: PVC, Teflon
Furfural 98-01-1 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade, CPF3, Trellchem, Tychem 4 hr: PVA, Saranex
Furfuryl alcohol 98-00-0 Prevent skin contact 8 hr: PE/EVAL

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE G
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Gasoline 8006-61-9 Prevent skin contact 8 hr: Nitrile, Viton, Barricade 4 hr: PVA, PE/EVAL, Responder
Germanium tetrahydride 7782-65-2 N.R. Determine based on working conditions
Glutaraldehyde 111-30-8 Prevent skin contact 8 hr: Butyl, Viton 4 hr: Natural, Neoprene, Nitrile, PVC
Glycerin (mist) 56-81-5 Prevent skin contact 8 hr: Natural, Neoprene, Nitrile 4 hr: PE/EVAL
Glycidol 556-52-5 Prevent skin contact Contact the manufacturer for recommendations
Glycolonitrile 107-16-4 Prevent skin contact Contact the manufacturer for recommendations
Grain dust (oat, wheat, barley)   N.R. Determine based on working conditions
Graphite (natural) 7782-42-5 N.R. Determine based on working conditions
Graphite (synthetic) 7440-44-0 (synthetic) N.R. Determine based on working conditions
Gypsum 13397-24-5 N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE H
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Hafnium 7440-58-6 Prevent skin contact Contact the manufacturer for recommendations
Halothane 151-67-7 Prevent skin contact 8 hr: PVA
Heptachlor 76-44-8 Prevent skin contact Contact the manufacturer for recommendations
n-Heptane 142-82-5 Prevent skin contact 8 hr: Nitrile, Viton, PE/EVAL
1-Heptanethiol 1639-09-4 Prevent skin contact Contact the manufacturer for recommendations
Hexachlorobutadiene 87-68-3 Prevent skin contact 8 hr: Responder, Tychem
Hexachlorocyclopentadiene 77-47-4 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, Viton, Responder
Hexachloroethane 67-72-1 Prevent skin contact Contact the manufacturer for recommendations
Hexachloronaphthalene 1335-87-1 Prevent skin contact Contact the manufacturer for recommendations
1-Hexadecanethiol 2917-26-2 Prevent skin contact Contact the manufacturer for recommendations
Hexafluoroacetone 684-16-2 Prevent skin contact/ Frostbite Contact the manufacturer for recommendations
Hexamethylene diisocyanate 822-06-0 Prevent skin contact 8 hr: Saranex, Barricade, Responder
Hexamethyl phosphoramide 680-31-9 Prevent skin contact Contact the manufacturer for recommendations
n-Hexane 110-54-3 Prevent skin contact 8 hr: Nitrile, PVA, Teflon, Viton, PE/EVAL, CPF3, Responder, Trellchem, Tychem

4 hr: Barricade

Hexane isomers (excluding n-Hexane)   Prevent skin contact Contact the manufacturer for recommendations
n-Hexanethiol 111-31-9 Prevent skin contact Contact the manufacturer for recommendations
2-Hexanone 591-78-6 Prevent skin contact Contact the manufacturer for recommendations
Hexone 108-10-1 Prevent skin contact Contact the manufacturer for recommendations
sec-Hexyl acetate 108-84-9 Prevent skin contact Contact the manufacturer for recommendations
Hexylene glycol 107-41-5 Prevent skin contact Contact the manufacturer for recommendations
Hydrazine 302-01-2 Prevent skin contact 8 hr: Butyl, Neoprene, Nitrile, PVC, Teflon, Saranex, Barricade, Responder

4 hr: PE/EVAL

Hydrogenated terphenyls 61788-32-7 Prevent skin contact Contact the manufacturer for recommendations
Hydrogen bromide 10035-10-6 Prevent skin contact (solution)/ Frostbite 4 hr: Teflon

Prevent possible skin freezing from direct liquid contact

Hydrogen chloride 7647-01-0 Prevent skin contact (solution)/ Frostbite 8hr: Butyl, Teflon, Saranex, Barricade, Responder, Trellchem, Tychem

4 hr: Neoprene, PVC

 

Prevent possible skin freezing from direct liquid contact

Hydrogen cyanide 74-90-8 Prevent skin contact 8 hr: Teflon

4 hr: PE/EVAL, Responder, Tychem

Hydrogen fluoride (as F) 7664-39-3 Prevent skin contact (liquid) 8 hr: Tychem

4 hr: Teflon

Hydrogen peroxide 7722-84-1 Prevent skin contact (solution 30%-70%)

8 hr: Butyl, Natural, Nitrile, PE, Viton, CPF3, Responder, Tychem

 

4 hr: PVC, PE/EVAL

Hydrogen selenide 7783-07-5 Frostbite Prevent possible skin freezing from direct liquid contact
Hydrogen sulfide 7783-06-4 Prevent skin contact/ Frostbite 8 hr: Tychem

4 hr: Teflon

 

Prevent possible skin freezing from direct liquid contact

Hydroquinone 123-31-9 Prevent skin contact 4 hr: Natural, Neoprene, Nitrile, PVC, PE/EVAL
2-Hydroxypropyl acrylate 999-61-1 Prevent skin contact Contact the manufacturer for recommendations
 

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE I
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Indene 95-13-6 Prevent skin contact Contact the manufacturer for recommendations
Indium 7440-74-6 N.R. Determine based on working conditions
Iodine 755-35-62 Prevent skin contact 8 hr: Saranex 4 hr: PE
Iodoform 75-47-8 Prevent skin contact Contact the manufacturer for recommendations
Iron oxide dust and fume (as Fe) 1309-37-1 N.R. Determine based on working conditions
Iron pentacarbonyl (as Fe) 13463-40-6 Prevent skin contact Contact the manufacturer for recommendations
Iron salts (soluble, as Fe)   Prevent skin contact Contact the manufacturer for recommendations for the specific compound
Isoamyl acetate 123-92-2 Prevent skin contact Contact the manufacturer for recommendations
Isoamyl alcohol (primary) 123-51-3 Prevent skin contact 8 hr: Butyl, Neoprene, Nitrile, Viton
Isoamyl alcohol (secondary) 528-75-4 Prevent skin contact Contact the manufacturer for recommendations
Isobutane 75-28-5 Frostbite Prevent possible skin freezing from direct liquid contact
Isobutyl acetate 11-01-90 Prevent skin contact Contact the manufacturer for recommendations
Isobutyl alcohol 78-83-1 Prevent skin contact 8 hr: Butyl, Neoprene, Viton, Responder 4 hr: Nitrile, PE/EVAL
Isobutyronitrile 78-82-0 Prevent skin contact 4 hr: Teflon
Isooctyl alcohol 26952-21-6 Prevent skin contact Contact the manufacturer for recommendations
Isophorone 78-59-1 Prevent skin contact 8 hr: Responder 4 hr: PVA, PE/EVAL
Isophorone diisocyanate 4098-71-9 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, Viton, Responder
2-Isopropoxyethanol 109-59-1 Prevent skin contact Contact the manufacturer for recommendations
Isopropyl acetate 108-21-4 Prevent skin contact Contact the manufacturer for recommendations
Isopropyl alcohol 67-63-0 Prevent skin contact 8 hr: Butyl, Nitrile, Viton, PE/EVAL, CPF3, Responder 4 hr: Neoprene, Teflon
Isopropylamine 75-31-0 Prevent skin contact 8 hr: Tychem 4 hr: Teflon
N-Isopropylaniline 768-52-5 Prevent skin contact Contact the manufacturer for recommendations
Isopropyl ether 108-20-3 Prevent skin contact Contact the manufacturer for recommendations
Isopropyl glycidyl ether 4016-14-2 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE K
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Kaolin 1332-58-7 N.R. Determine based on working conditions
Kepone 14-35-00 Prevent skin contact Contact the manufacturer for recommendations
Kerosene 800-82-06 Prevent skin contact 8 hr: Nitrile, PE, Viton 4 hr: Neoprene, PVA, PVC, Barricade, Responder
Ketene 46-35-14 N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE L
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Lead 7439-92-1 Prevent skin contact Any barrier that will prevent contamination from the dust
Limestone 1317-65-3 N.R. Determine based on working conditions
Lindane 58-89-9 Prevent skin contact Contact the manufacturer for recommendations
Lithium hydride 7580-67-8 Prevent skin contact Contact the manufacturer for recommendations
L.P.G. 68476-85-7 Frostbite Prevent possible skin freezing from direct liquid contact

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE M
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Magnesite 546-93-0 N.R. Determine based on working conditions
Magnesium oxide fume 1309-48-4 N.R. Determine based on working conditions
Malathion 121-75-5 Prevent skin contact 4 hr: Teflon, PE/EVAL
Maleic anhydride 108-31-6 Prevent skin contact 8 hr: Responder
Malonaldehyde 542-78-9 Prevent skin contact Contact the manufacturer for recommendations
Malononitrile 109-77-3 Prevent skin contact Contact the manufacturer for recommendations
Manganese compounds and fume (as Mn) 7439-96-5 (metal) N.R. Determine based on working conditions
Manganese cyclopentadienyl tricarbonyl (as Mn) 12079-65-1 Prevent skin contact Contact the manufacturer for recommendations
Manganese tetroxide (as Mn) 1317-35-7 N.R. Determine based on working conditions
Marble 1317-65-3 N.R. Determine based on working conditions
Mercury compounds [except (organo) alkyls] (as Hg) 7439-97-6 (metal) Prevent skin contact Contact the manufacturer for recommendations for the specific compound
Mercury (organo) alkyl compounds (as Hg)   Prevent skin contact Contact the manufacturer for recommendations for the specific compound
Mesityl oxide 141-79-7 Prevent skin contact 8 hr: Responder
Methacrylic acid 79-41-4 Prevent skin contact 8 hr: Butyl, Viton, PE/EVAL, REsponder, Tychem
Methomyl 16752-77-5 Prevent skin contact 8 hr: Tychem
Methoxychlor 72-43-5 Prevent skin contact Contact the manufacturer for recommendations
Methoxyflurane 76-38-0 N.R. Determine based on working conditions
4-Methoxyphenol 150-76-5 Prevent skin contact Contact the manufacturer for recommendations
Methyl acetate 79-20-9 Prevent skin contact 8 hr: PE/EVAL 4 hr: Teflon
Methyl acetylene 74-99-7 Frostbite Prevent possible skin freezing from direct liquid contact
Methyl acetylene-propadiene mixture 59355-75-8 Frostbite Prevent possible skin freezing from direct liquid contact
Methyl acrylate 96-33-3 Prevent skin contact 8 hr: Butyl, Tychem 4 hr: Teflon
Methylacrylonitrile 126-98-7 Prevent skin contact Contact the manufacturer for recommendations
Methylal 109-87-5 Prevent skin contact Contact the manufacturer for recommendations
Methyl alcohol 67-56-1 Prevent skin contact 8 hr: Butyl, Teflon, Viton, Saranex, PE/EVAL, Responder, Trellchem, Tychem
Methylamine 74-89-5 Prevent skin contact (solution)/ Frostbite 8 hr: Responder, Tychem 4 hr: Teflon Prevent possible skin freezing from direct liquid contact
Methyl (n-amyl) ketone 110-43-0 Prevent skin contact 4 hr: PE/EVAL
Methyl bromide 74-83-9 Prevent skin contact (liquid) 8 hr: Responder, Tychem 4 hr: Butyl, Neoprene, Teflon
Methyl Cellosolve® 109-86-4 Prevent skin contact 8 hr: Butyl, Tychem 4 hr: PE/EVAL
Methyl Cellosolve® acetate 110-49-6 Prevent skin contact 8 hr: Butyl, Tychem 4 hr: Saranex, PE/EVAL
Methyl chloride 74-87-3 Prevent skin contact/ Frostbite 8 hr: Viton, Saranex, Barricade, Responder, Trellchem, Tychem 4 hr: Teflon Prevent possible skin freezing from direct liquid contact
Methyl chloroform 71-55-6 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, CPF3, Responder, Tychem 4 hr: Teflon
Methyl-2-cyanoacrylate 137-05-3 Prevent skin contact Contact the manufacturer for recommendations
Methylcyclohexane 108-87-2 Prevent skin contact Contact the manufacturer for recommendations
Methylcyclohexanol 25639-42-3 Prevent skin contact Contact the manufacturer for recommendations
o-Methylcyclohexanone 583-60-8 Prevent skin contact Contact the manufacturer for recommendations
Methyl cyclopentadienyl manganese tricarbonyl (as Mn) 12108-13-3 Prevent skin contact Contact the manufacturer for recommendations
Methyl demeton 8022-00-2 Prevent skin contact Contact the manufacturer for recommendations
4,4′-Methylenebis(2-chloroaniline) 101-14-4 Prevent skin contact 8 hr: Saranex, Barricade 4 hr: PE/EVAL
Methylene bis(4-cyclo-hexylisocyanate) 5124-30-1 Prevent skin contact Contact the manufacturer for recommendations
Methylene bisphenyl isocyanate 101-68-8 Prevent skin contact 8 hr: PE/EVAL, Barricade, Responder
Methylene chloride 75-09-2 Prevent skin contact 8 hr: PVA, PE/EVAL, Responder, Trellchem, Tychem 4 hr: Teflon, Barricade
4,4′-Methylenedianiline 101-77-9 Prevent skin contact 8 hr: PE/EVAL
Methyl ethyl ketone peroxide 1338-23-4 Prevent skin contact Contact the manufacturer for recommendations
Methyl formate 107-31-3 Prevent skin contact Contact the manufacturer for recommendations
5-Methyl-3-heptanone 541-85-5 Prevent skin contact Contact the manufacturer for recommendations
Methyl hydrazine 603-4-4 Prevent skin contact 8 hr: Responder, Tychem
Methyl iodide 74-88-4 Prevent skin contact 8 hr: Viton, Responder, Tychem
Methyl isoamyl ketone 110-12-3 Prevent skin contact Contact the manufacturer for recommendations
Methyl isobutyl carbinol 108-11-2 Prevent skin contact Contact the manufacturer for recommendations
Methyl isocyanate 624-83-9 Prevent skin contact 8 hr: PVA, Barricade, Responder, Trellchem, Tychem
Methyl isopropyl ketone 563-80-4 Prevent skin contact Contact the manufacturer for recommendations
Methyl mercaptan 74-93-1 Prevent skin contact (liquid)/ Frostbite 8 hr: Barricade, Responder, Tychem Prevent possible skin freezing from direct liquid contact
Methyl methacrylate 80-62-6 Prevent skin contact 8 hr: PVA, PE/EVAL, Barricade, Trellchem 4 hr: Teflon
Methyl parathion 298-00-0 Prevent skin contact Contact the manufacturer for recommendations
Methyl silicate 681-84-5 Prevent skin contact Contact the manufacturer for recommendations
alpha-Methyl styrene 98-83-9 Prevent skin contact Contact the manufacturer for recommendations
Metribuzin 21087-64-9 Prevent skin contact Contact the manufacturer for recommendations
Mica (containing less than 1% quartz) 12001-26-2 N.R. Determine based on working conditions
Mineral wool fiber   Prevent skin contact Any barrier that will prevent contamination from the dust and fiber
Molybdenum 7439-98-7 N.R. Determine based on working conditions
Molybdenum (soluble compounds, as Mo)   Prevent skin contact Contact the manufacturer for recommendations for specific compounds
Monocrotophos 6923-22-4 Prevent skin contact Contact the manufacturer for recommendations
Monomethyl aniline 100-61-8 Prevent skin contact Contact the manufacturer for recommendations
Morpholine 110-91-8 Prevent skin contact 8 hr: Butyl, PE/EVAL

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE N
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Naphtha (coal tar) 8030-30-6 Prevent skin contact 8 hr: Viton 4 hr: Nitrile, PVA
Naphthalene 91-20-3 Prevent skin contact 8 hr: Teflon
Naphthalene diisocyanate 3173-72-6 Prevent skin contact Contact the manufacturer for recommendations
alpha-Naphthylamine 134-32-7 Prevent skin contact Contact the manufacturer for recommendations
ß-Naphthylamine 91-59-8 Prevent skin contact Contact the manufacturer for recommendations
Niax® Catalyst ESN 62765-93-9 Prevent skin contact Contact the manufacturer for recommendations
Nickel carbonyl 13463-39-3 Prevent skin contact 8 hr: Tychem
Nickel metal and other compounds (as Ni) 7440-02-0 (Metal) Prevent skin contact Contact the manufacturer for recommendations for specific compounds
Nicotine 54-11-5 Prevent skin contact 8 hr: Barricade, CPF3, Responder 4 hr: Teflon, PE/EVAL
Nitric acid 7697-37-2 Prevent skin contact (<70% only) 8 hr: Butyl, Viton, Saranex, Barricade, CPF3, Trellchem, Tychem 4 hr: Neoprene, PE, PE/EVAL, Responder
Nitric oxide 10102-43-9 N.R. Determine based on working conditions
p-Nitroaniline 100-01-6 Prevent skin contact Contact the manufacturer for recommendations
Nitrobenzene 98-95-3 Prevent skin contact 8 hr: Butyl, PVA, Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem
4-Nitrobiphenyl 92-93-3 Prevent skin contact Contact the manufacturer for recommendations
p-Nitrochlorobenzene 100-00-5 Prevent skin contact 4 hr: Saranex
Nitroethane 79-24-3 Prevent skin contact 8 hr: Butyl, PE/EVAL, Barricade 4 hr: Teflon
Nitrogen dioxide 10102-44-0 Prevent skin contact 8 hr: Saranex
Nitrogen trifluoride 7783-54-2 N.R. Determine based on working conditions
Nitroglycerine 55-63-0 Prevent skin contact 4 hr: PE/EVAL
Nitromethane 75-52-5 Prevent skin contact 8 hr: Butyl, Teflon, PE/EVAL, Barricade, Responder, Trellchem 4 hr: PVA
2-Nitronaphthalene 581-89-5 Prevent skin contact Contact the manufacturer for recommendations
1-Nitropropane 108-03-2 Prevent skin contact 8 hr: Butyl, PVA
2-Nitropropane 79-46-9 Prevent skin contact 8 hr: Butyl, PVA, Tychem 4 hr: Teflon, PE/EVAL
N-Nitrosodimethylamine 62-75-9 Prevent skin contact Contact the manufacturer for recommendations
o-Nitrotoluene 88-72-2 Prevent skin contact 8 hr: Butyl 4 hr: Teflon, Saranex
m-Nitrotoluene 99-08-1 Prevent skin contact Contact the manufacturer for recommendations
p-Nitrotoluene 99-99-0 Prevent skin contact Contact the manufacturer for recommendations
Nitrous oxide 10024-97-2 Frostbite Prevent possible skin freezing from direct liquid contact
Nonane 111-84-2 N.R. Determine based on working conditions
1-Nonanethiol 1455-21-6 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE O
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Octachloronaphthalene 2234-13-1 Prevent skin contact Contact the manufacturer for recommendations
1-Octadecanethiol 2885-00-9 Prevent skin contact Contact the manufacturer for recommendations
Octane 111-65-9 Prevent skin contact 8 hr: Responder, Tychem 4 hr: Nitrile, Viton
1-Octanethiol 111-88-6 Prevent skin contact Contact the manufacturer for recommendations
Oil mist (mineral) 8012-95-1 Prevent skin contact Contact the manufacturer for recommendations
Osmium tetroxide 20816-12-0 Prevent skin contact Contact the manufacturer for recommendations
Oxalic acid 144-62-7 Prevent skin contact 8 hr: Butyl, Natural, Neoprene, Nitrile, PVC, Viton
Oxygen difluoride 7783-41-7 N.R. Determine based on working conditions
Ozone 10028-15-6 N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE P
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Paraffin wax fume 8002-74-2 N.R. Determine based on working conditions
Paraquat (Paraquat dichloride) 1910-42-5 Prevent skin contact Contact the manufacturer for recommendations
Parathion 56-38-2 Prevent skin contact 8 hr: Tychem 4 hr: Teflon
Particulates not otherwise regulated   N.R. Determine based on working conditions
Pentaborane 19624-22-7 Prevent skin contact Contact the manufacturer for recommendations
Pentachloroethane 76-01-7 Prevent skin contact Contact the manufacturer for recommendations
Pentachloronaphthalene 1321-64-8 Prevent skin contact Contact the manufacturer for recommendations
Pentachlorophenol 87-86-5 Prevent skin contact 8 hr: Nitrile, Viton 4 hr: Neoprene, PE/EVAL
Pentaerythritol 115-77-5 N.R. Determine based on working conditions
n-Pentane 109-66-0 Prevent skin contact 8 hr: Viton, PE/EVAL 4 hr: Nitrile, PVA
1-Pentanethiol 110-66-7 Prevent skin contact Contact the manufacturer for recommendations
2-Pentanone 107-87-9 Prevent skin contact 4 hr: Butyl
Perchloromethyl mercaptan 594-42-3 Prevent skin contact Contact the manufacturer for recommendations
Perchloryl fluoride 7616-94-6 Frostbite Prevent possible skin freezing from direct liquid contact
Perlite 93763-70-3 N.R. Determine based on working conditions
Petroleum distillates (naphtha) 8002-05-9 Prevent skin contact Contact the manufacturer for recommendations
Phenol 108-95-2 Prevent skin contact 8 hr: Viton, Saranex, Barricade, Responder, Trellchem 4 hr: Butyl, Neoprene, Teflon, PE/EVAL
Phenothiazine 92-84-2 Prevent skin contact Contact the manufacturer for recommendations
p-Phenylene diamine 106-50-3 Prevent skin contact Contact the manufacturer for recommendations
Phenyl ether (vapor) 101-84-8 Prevent skin contact Contact the manufacturer for recommendations
Phenyl ether-biphenyl mixture (vapor) 8004-13-5 Prevent skin contact Contact the manufacturer for recommendations
Phenyl glycidyl ether 122-60-1 Prevent skin contact Contact the manufacturer for recommendations
Phenylhydrazine 100-63-0 Prevent skin contact Contact the manufacturer for recommendations
N-Phenyl-ß-naphthylamine 135-88-6 Prevent skin contact Contact the manufacturer for recommendations
Phenylphosphine 638-21-1 Prevent skin contact Contact the manufacturer for recommendations
Phorate 298-02-2 Prevent skin contact Contact the manufacturer for recommendations
Phosdrin 7786-34-7 Prevent skin contact Contact the manufacturer for recommendations
Phosgene 75-44-5 Prevent skin contact (liquid) 8 hr: Responder, Tychem 4 hr: Teflon
Phosphine 7803-51-2 Prevent skin contact/ Frostbite 8 hr: Responder Prevent possible skin freezing from direct liquid contact
Phosphoric acid 7664-38-2 Prevent skin contact 8 hr: Butyl, Natural, Neoprene, Nitrile, PE, PVC, Viton, Saranex, PE/EVAL, Barricade, Responder, Trellchem
Phosphorus (yellow) 7723-14-0 Prevent skin contact* [*Note: Flame retardant equipment should be provided.] Contact the manufacturer for recommendations
Phosphorus oxychloride 10025-87-3 Prevent skin contact 8 hr: Responder, Trellchem 4 hr: Teflon, PE/EVAL
Phosphorus pentachloride 10026-13-8 Prevent skin contact Contact the manufacturer for recommendations
Phosphorus pentasulfide 1314-80-3 Prevent skin contact* [*Note: Flame retardant equipment should be provided] Contact the manufacturer for recommendations
Phosphorus trichloride 7719-12-2 Prevent skin contact 8 hr: Barricade, Trellchem 4 hr: Teflon
Phthalic anhydride 85-44-9 Prevent skin contact 4 hr: PE/EVAL
m-Phthalodinitrile 626-17-5 Prevent skin contact Contact the manufacturer for recommendations
Picloram 1918-02-1 Prevent skin contact Contact the manufacturer for recommendations
Picric acid 88-89-1 Prevent skin contact Contact the manufacturer for recommendations
Pindone 83-26-1 N.R. Determine based on working conditions
Piperazine dihydrochloride 142-64-3 Prevent skin contact Contact the manufacturer for recommendations
Plaster of Paris 26499-65-0 N.R. Determine based on working conditions
Platinum 7440-06-4 N.R. Determine based on working conditions
Platinum (soluble salts, as Pt)   Prevent skin contact Contact the manufacturer for recommendations for specific compounds
Portland cement 65997-15-1 Prevent skin contact Any barrier that will prevent contamination from the cement
Potassium cyanide (as CN) 151-50-8 Prevent skin contact (solution <30% only) 8 hr: PE
Potassium hydroxide 1310-58-3 Prevent skin contact (solution <70% only) 8 hr: Butyl, Natural, Nitrile, PVC, Viton 4 hr: Teflon, PE/EVAL
Propane 74-98-6 Frostbite Prevent possible skin freezing from direct liquid contact
Propane sultone 1120-71-4 Prevent skin contact Contact the manufacturer for recommendations
1-Propanethiol 107-03-9 N.R. Determine based on working conditions
Propargyl alcohol 107-19-7 Prevent skin contact Contact the manufacturer for recommendations
ß-Propiolactone 57-57-8 Prevent skin contact 4 hr: Teflon
Propionic acid 79-09-4 Prevent skin contact 4 hr: Teflon
Propionitrile 107-12-0 Prevent skin contact 8 hr: PVA
Propoxur 114-26-1 Prevent skin contact Contact the manufacturer for recommendations
n-Propyl acetate 109-60-4 Prevent skin contact 8 hr: PE/EVAL
n-Propyl alcohol 71-23-8 Prevent skin contact 8 hr: Butyl, Nitrile, Viton 4 hr: Neoprene, PVA
Propylene dichloride 78-87-5 Prevent skin contact Contact the manufacturer for recommendations
Propylene glycol dinitrate 6423-43-4 Prevent skin contact Contact the manufacturer for recommendations
Propylene glycol monomethyl ether 107-98-2 Prevent skin contact 8 hr: Butyl 4 hr: Neoprene, PE/EVAL
Propylene imine 75-55-8 Prevent skin contact Contact the manufacturer for recommendations
Propylene oxide 75-56-9 Prevent skin contact 8 hr: Barricade, Tychem 4 hr: Teflon, PE/EVAL, Responder
n-Propyl nitrate 627-13-4 Prevent skin contact Contact the manufacturer for recommendations
Pyrethrum 8003-34-7 Prevent skin contact Contact the manufacturer for recommendations
Pyridine 110-86-1 Prevent skin contact 8 hr: PE/EVAL, Responder, Tychem

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE Q
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Quinone 106-51-4 Prevent skin contact 8 hr: Saranex

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE R
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Resorcinol 108-46-3 Prevent skin contact Contact the manufacturer for recommendations
Rhodium (metal fume and insoluble compounds, as Rh) 7440-16-6 (metal) N.R. Determine based on working conditions
Rhodium (soluble compounds, as Rh)   Prevent skin contact Contact the manufacturer for recommendations for specific compound
Ronnel 299-84-3 Prevent skin contact Contact the manufacturer for recommendations
Rosin core solder, pyrolysis products (as formaldehyde)   N.R. Determine based on working conditions
Rotenone 83-79-4 Prevent skin contact Contact the manufacturer for recommendations
Rouge 1309-37-1 N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE S
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Selenium 7782-49-2 Prevent skin contact Contact the manufacturer for recommendations
Selenium hexafluoride 7783-79-1 N.R. Determine based on working conditions
Silica, amorphous 7631-86-9 N.R. Determine based on working conditions
Silica, crystalline (as respirable dust) 14808-60-7 N.R. Determine based on working conditions
Silicon 7440-21-3 N.R. Determine based on working conditions
Silicon carbide 409-21-2 N.R. Determine based on working conditions
Silicon tetrahydride 7803-62-5 N.R. Determine based on working conditions
Silver (metal dust and soluble compounds, as Ag) 7440-22-4 (metal) Prevent skin contact Contact the manufacturer for recommendations for specific compound
Soapstone (containing less than 1% quartz)   N.R. Determine based on working conditions
Sodium aluminum fluoride (as F) 15096-52-3 Prevent skin contact Contact the manufacturer for recommendations
Sodium azide 26628-22-8 Prevent skin contact Contact the manufacturer for recommendations
Sodium bisulfite 7631-90-5 N.R. Determine based on working conditions
Sodium cyanide (as CN) 143-33-9 Prevent skin contact (solution >70% only) 8 hr: Saranex, Barricade
Sodium fluoride (as F) 7681-49-4 Prevent skin contact 8 hr: Natural, Neoprene, Nitrile, PVC, Saranex
Sodium fluoroacetate 62-74-8 Prevent skin contact Contact the manufacturer for recommendations
Sodium hydroxide 1310-73-2 Prevent skin contact (solution >70% only) 8 hr: Neoprene, PVC, Barricade
Sodium metabisulfite 7681-57-4 N.R. Determine based on working conditions
Starch 9005-25-8 Prevent skin contact Any barrier that will prevent skin contact
Stibine 7803-52-3 N.R. Determine based on working conditions
Stoddard solvent 8052-41-3 Prevent skin contact 8 hr: Nitrile, Viton, Saranex, PE/EVAL, Barricade, Responder 4 hr: PVA
Strychnine 57-24-9 Prevent skin contact Contact the manufacturer for recommendations
Styrene 100-42-5 Prevent skin contact 8 hr: Viton, PE/EVAL, Barricade, CPF3, Trellchem 4 hr: PVA, Teflon, Responder
Subtilisins 1395-21-7 (BPN) 9014-01-1 (Carlsburg) Prevent skin contact Contact the manufacturer for recommendations
Succinonitrile 110-61-2 Prevent skin contact Contact the manufacturer for recommendations
Sucrose 57-50-1 N.R. Determine based on working conditions
Sulfur dioxide 7446-09-5 Prevent skin contact/ Frostbite 8 hr: Saranex, Barricade, Responder 4 hr: Teflon Prevent possible skin freezing from direct liquid contact
Sulfur hexafluoride 2551-62-4 Frostbite Prevent possible skin freezing from direct liquid contact
Sulfuric acid 7664-93-9 Prevent skin contact (solution >70% only) 8 hr: Butyl, PE, Teflon, Saranex, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem 4 hr: Viton
Sulfur monochloride 10025-67-9 Prevent skin contact Contact the manufacturer for recommendations
Sulfur pentafluoride 5714-22-7 Prevent skin contact Contact the manufacturer for recommendations
Sulfur tetrafluoride 7783-60-0 Frostbite Prevent possible skin freezing from direct liquid contact
Sulfuryl fluoride 2699-79-8 Frostbite Prevent possible skin freezing from direct liquid contact
Sulprofos 35400-43-2 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE T
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
2,4,5-T 93-76-5 N.R. Determine based on working conditions
Talc (containing no asbestos and less than 1% quartz) 14807-96-6 N.R. Determine based on working conditions
Tantalum (metal and oxide dust, as Ta) 7440-25-7 (metal) N.R. Determine based on working conditions
TEDP 89-24-5 Prevent skin contact Contact the manufacturer for recommendations
Tellurium 13494-80-9 N.R. Determine based on working conditions
Tellurium hexafluoride 7783-80-4 N.R. Determine based on working conditions
Temephos 3383-96-8 Prevent skin contact Contact the manufacturer for recommendations
TEPP 107-49-3 Prevent skin contact Contact the manufacturer for recommendations
o-Terphenyl 84-15-1 Prevent skin contact Contact the manufacturer for recommendations
m-Terphenyl 92-06-8 Prevent skin contact Contact the manufacturer for recommendations
p-Terphenyl 92-94-4 Prevent skin contact Contact the manufacturer for recommendations
2,3,7,8-Tetrachlorodibenzo- p-dioxin 1746-01-6 Prevent skin contact Contact the manufacturer for recommendations
1,1,1,2-Tetrachloro-2,2- difluoroethane 76-11-9 Prevent skin contact Contact the manufacturer for recommendations
1,1,2,2-Tetrachloro-1,2- difluoroethane 76-12-0 Prevent skin contact Contact the manufacturer for recommendations
1,1,1,2-Tetrachloroethane 630-20-6 Prevent skin contact 8 hr: PVA, Viton
1,1,2,2-Tetrachloroethane 79-34-5 Prevent skin contact 8 hr: PVA, Teflon, Viton, Barricade, Tychem
Tetrachloroethylene 127-18-4 Prevent skin contact 8 hr: PVA, Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem
Tetrachloronaphthalene 1335-88-2 Prevent skin contact Contact the manufacturer for recommendations
Tetraethyl lead (as Pb) 78-00-2 Prevent skin contact (>0.1%) 8 hr: CPF3, Tychem
Tetrahydrofuran 109-99-9 Prevent skin contact 8 hr: Teflon, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem
Tetramethyl lead (as Pb) 75-74-1 Prevent skin contact (>0.1%) Contact the manufacturer for recommendations
Tetramethyl succinonitrile 3333-52-6 Prevent skin contact Contact the manufacturer for recommendations
Tetranitromethane 509-14-8 Prevent skin contact Contact the manufacturer for recommendations
Tetrasodium pyrophosphate 7722-88-5 Prevent skin contact Contact the manufacturer for recommendations
Tetryl 479-45-8 Prevent skin contact Contact the manufacturer for recommendations
Thallium (soluble compounds, as Tl)   Prevent skin contact Contact the manufacturer for recommendations for the specific compound
4,4′-Thiobis(6-tert- butyl-m-cresol) 96-69-5 N.R. Determine based on working conditions
Thioglycolic acid 68-11-1 Prevent skin contact 8 hr: Butyl, Neoprene, Viton 4 hr: PE/EVAL
Thionyl chloride 7719-09-7 Prevent skin contact Contact the manufacturer for recommendations
Thiram 137-26-8 Prevent skin contact Contact the manufacturer for recommendations
Tin 7440-31-5 N.R. Determine based on working conditions
Tin (organic compounds, as Sn)   Recommendations regarding personal protective clothing vary depending upon the specific compound. Contact the manufacturer for recommendations for the specific compound
Tin(II) oxide (as Sn) 21651-19-4 N.R. Determine based on working conditions
Tin(IV) oxide (as Sn) 18282-10-5 N.R. Determine based on working conditions
Titanium dioxide 13463-67-7 N.R. Determine based on working conditions
o-Tolidine 119-93-7 Prevent skin contact Contact the manufacturer for recommendations
Toluene 108-88-3 Prevent skin contact 8 hr: PVA, Teflon, Viton, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem
Toluenediamine 25376-45-8 95-80-7 (2,4-TDA) Prevent skin contact Contact the manufacturer for recommendations
Toluene-2,4-diisocyanate 584-84-9 Prevent skin contact 8 hr: Butyl, Nitrile, PVA, PVC, Viton, Saranex, PE/EVAL, Barricade, CPF3, Responder 4 hr: Teflon
o-Toluidine 95-53-4 Prevent skin contact 8 hr: Barricade, Tychem 4 hr: Teflon, Saranex
m-Toluidine 108-44-1 Prevent skin contact 8 hr: Saranex
p-Toluidine 106-49-0 Prevent skin contact Contact the manufacturer for recommendations
Tributyl phosphate 126-73-8 Prevent skin contact 4 hr: PE/EVAL
Trichloroacetic acid 76-03-9 Prevent skin contact 8 hr: Trellchem 4 hr: Nitrile
1,2,4-Trichlorobenzene 120-82-1 Prevent skin contact 8 hr: Teflon, Barricade 4 hr: Viton
1,1,2-Trichloroethane 79-00-5 Prevent skin contact 8 hr: Teflon, Viton, Tychem 4 hr: PVA
Trichloroethylene 79-01-6 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, Trellchem, Tychem 4 hr: Teflon, Responder
Trichloronaphthalene 1321-65-9 Prevent skin contact Contact the manufacturer for recommendations
1,2,3-Trichloropropane 96-18-4 Prevent skin contact 8 hr: Butyl, PVA, Viton
1,1,2-Trichloro-1,2,2- trifluoroethane 76-13-1 Prevent skin contact 8 hr: Nitrile, Teflon, Barricade, CPF3, Responder 4 hr: PVA, Viton, PE/EVAL
Triethylamine 121-44-8 Prevent skin contact 8 hr: Nitrile, Viton, Saranex, Responder, Trellchem, Tychem
Trifluorobromomethane 75-63-8 Frostbite Prevent possible skin freezing from direct liquid contact
Trimellitic anhydride 552-30-7 Prevent skin contact Contact the manufacturer for recommendations
Trimethylamine 75-50-3 Prevent skin contact (liquid)/ Frostbite 4 hr: Teflon Prevent possible skin freezing from direct liquid contact
1,2,3-Trimethylbenzene 526-73-8 Prevent skin contact Contact the manufacturer for recommendations
1,2,4-Trimethylbenzene 95-63-6 Prevent skin contact 8 hr: PVA, Viton, PE/EVAL, Barricade, CPF3, Tychem 4 hr: Teflon, Responder
1,3,5-Trimethylbenzene 108-67-8 Prevent skin contact Contact the manufacturer for recommendations
Trimethyl phosphite 121-45-9 Prevent skin contact Contact the manufacturer for recommendations
2,4,6-Trinitrotoluene 118-96-7 Prevent skin contact Contact the manufacturer for recommendations
Triorthocresyl phosphate 78-30-8 Prevent skin contact Contact the manufacturer for recommendations
Triphenylamine 603-34-9 Prevent skin contact Contact the manufacturer for recommendations
Triphenyl phosphate 115-86-6 N.R. Determine based on working conditions
Tungsten 7440-33-7 N.R. Determine based on working conditions
Tungsten (soluble compounds, as W)   Recommendations regarding personal protective clothing vary depending upon the specific compound. Contact the manufacturer for recommendations for the specific compound
Tungsten carbide (cemented) 1: 11107-01-0 2: 12718-69-3 3: 37329-49-0 Prevent skin contact Contact the manufacturer for recommendations
Turpentine 8006-64-2 Prevent skin contact 8 hr: Viton, PE/EVAL, Responder 4 hr: Nitrile, PVA, Teflon

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE U
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
1-Undecanethiol 5332-52-5 Prevent skin contact Contact the manufacturer for recommendations
Uranium (insoluble compounds, as U) 7440-61-1 (metal) Prevent skin contact Contact the manufacturer for recommendations
Uranium (soluble compounds, as U)   Prevent skin contact Contact the manufacturer for recommendations for specific compound

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE V
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
n-Valeraldehyde 110-62-3 Prevent skin contact Contact the manufacturer for recommendations
Vanadium dust 1314-62-1 Prevent skin contact Any barrier that will prevent contamination from the dust
Vanadium fume 1314-62-1 N.R. Determine based on working conditions
Vegetable oil mist 68956-68-3 N.R. Determine based on working conditions
Vinyl acetate 108-05-4 Prevent skin contact 8 hr: Teflon, PE/EVAL, Barricade 4 hr: Responder
Vinyl bromide 593-60-2 Prevent skin contact (liquid) Contact the manufacturer for recommendations
Vinyl chloride 75-01-4 Prevent skin contact/ Frostbite 8 hr: Tychem 4 hr: PVA, Teflon Prevent possible skin freezing from direct liquid contact
Vinyl cyclohexene dioxide 106-87-6 Prevent skin contact Contact the manufacturer for recommendations
Vinyl fluoride 75-02-5 Frostbite Prevent possible skin freezing from direct liquid contact
Vinylidene chloride 75-35-4 Prevent skin contact/ Frostbite Contact the manufacturer for recommendations Prevent possible skin freezing from direct liquid contact
Vinylidene fluoride 75-38-7 Prevent skin contact/ Frostbite 8 hr: Butyl, Teflon, Viton Prevent possible skin freezing from direct liquid contact
Vinyl toluene 25013-15-4 (inhibited) Prevent skin contact Contact the manufacturer for recommendations
VM & P Naphtha 8032-32-4 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE W
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Warfarin 81-81-2 Prevent skin contact Contact the manufacturer for recommendations
Welding fumes   N.R. Determine based on working conditions
Wood dust   N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE X
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
o-Xylene 95-47-6 Prevent skin contact Contact the manufacturer for recommendations
m-Xylene 108-38-3 Prevent skin contact Contact the manufacturer for recommendations
p-Xylene 106-42-3 Prevent skin contact Contact the manufacturer for recommendations
m-Xylene alpha,alpha’-diamine 1477-55-0 Prevent skin contact Contact the manufacturer for recommendations
Xylidine 1300-73-8 Prevent skin contact Contact the manufacturer for recommendations

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE Y
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Yttrium 7440-65-5 N.R. Determine based on working conditions

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

TABLE Z
Chemical CAS No. Recommendation for skin protection Recommended protective clothing barriers*
Zinc chloride fume 7646-85-7 N.R. Determine based on working conditions
Zinc oxide 1314-13-2 N.R. Determine based on working conditions
Zinc stearate 557-05-1 N.R. Determine based on working conditions
Zirconium compounds (as Zr) 7440-67-7 (Metal) Recommendations regarding personal protective clothing vary depending upon the specific compound. Contact the manufacturer for recommendations for the specific compound

Recommendations for skin protection

Prevent skin contact…. Wear appropriate personal protective clothing to prevent skin contact. Suggested barriers for use should be confirmed with the vendor and for additional information and use limitations.
Frostbite……………….. Wear appropriate personal protective clothing to prevent the skin from becoming frozen from contact with the evaporating liquid or from contact with vessels containing the liquid.
N.R……………………… No specific recommendation can be made. Actual working conditions will determine the need and type of personal protective equipment.

†Bold type indicates a change from or an addition to what is published in the NIOSH Pocket Guide to Chemical Hazards, June 1997 Edition. Recommended protective clothing barriers *

Butyl = Butyl Rubber (Gloves, Suits, Boots) Natural = Natural Rubber (Gloves) Neoprene = Neoprene Rubber (Gloves, Suits, Boots) Nitrile = Nitrile Rubber (Gloves, Suits, Boots) PE = Polyethylene (Gloves, Suits, Boots) PVA = Polyvinyl Alcohol (Gloves) PVC = Polyvinyl Chloride (Gloves, Suits, Boots) Teflon = Teflon™ (Gloves, Suits, Boots) Viton = Viton™ (Gloves, Suits) Saranex = Saranex™ coated suits PE/EVAL = 4H™ and Silver Shield™ brand gloves Barricade = Barricade™ coated suits CPF3 = CPF3™ suits Responder = Responder™ suits Trellchem = Trellchem HPS™ suits Tychem = Tychem 10000™ suits

8 hr = More than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm 2/min.

*Neoprene is a tradename and Teflon, Barricade and Tychem 10000 are trademarks of the DuPont Company. Viton is a registered trademark of DuPont Dow Elastomers. Saranex is a tradename of the Dow Chemical Company. 4H is a trademark of the Safety 4 Company. Silver Shield is a trademark of the Siebe North Company. CPF3 and Responder are trademarks of the Kappler Company. Trellchem HPS is a trademark of the Trelleborg Company. Recommendations are NOT valid for very thin Natural Rubber, Neoprene, Nitrile, and PVC gloves (0.3 mm or less).

Page last reviewed: January 1, 2000 (archived document)