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