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Chemical permeation - a summary report of recent NIOSH-directed studies at the Los Alamos National Laboratory.
Stampfer-JF; McLeod-MJ; Betts-MR; Martinez-AM; Berardinelli-SP
Am Ind Hyg Assoc J 1984 Jan; 45(1):B10-B12
Preliminary results of permeation studies of chemical protective garments were summarized. The studies were recently completed by the Los Alamos National Laboratory under the direction of NIOSH. Chemical permeation was measured for epichlorohydrin (106898), perchloroethylene (127184), trichloroethylene (79016), 1,2- dibromoethane (106934), Aroclor-1254 (27323188), and solutions of Aroclor-1254 in trichlorobenzene and paraffin-oil. Materials tested included surgical rubber, butyl-rubber, polyethylene, polyvinyl- alcohol, Saranex laminated Tyvek, Neoprene, milled Nitrile, Viton, Viton-SF, Vitrile, and flexed Teflon. Thicknesses ranged from 0.003 to 0.046 centimeters. Breakthrough times of the chemicals through the tested materials were tabulated. Vitrile and Teflon were consistently resistant to permeation by the four solvents, having breakthrough times greater than 60 minutes. Surgical rubber and polyethylene were readily penetrated by the solvents, with breakthrough times of less than 30 minutes. Nitrile, Vitrile, Viton, and Viton-SF were resistant to permeation by Aroclor-1254 and the Aroclor solutions, showing breakthrough times of greater than 8 hours. Polyvinyl-alcohol and surgical rubber were the least resistant to pure and dissolved Aroclor-1254, showing breakthrough times of less than 3 hours. The authors point out that factors other than chemical permeation are important in the selection of proper protective clothing.
NIOSH-Author; Protective-clothing; Personal-protection; Organic-solvents; Organo-chlorine-compounds; Polychlorinated-biphenyls; Physical-properties; Synthetic-materials; Synthetic-rubbers; Polymers
106-89-8; 127-18-4; 79-01-6; 106-93-4; 27323-18-8
Issue of Publication
American Industrial Hygiene Association Journal
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division