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


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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/cm2/min. 4 hr = At least 4 but less than 8 hours of resistance to breakthrough >0.1  microng/cm2/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).

 

 
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