Recommendations for Chemical Protective Clothing A Companion to the NIOSH Pocket Guide to Chemical Hazards 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 µg/cm²/min.

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

This page was last updated April 12, 1999

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