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