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An evaluation of a smaller version of the ASTM permeation test cell used in ASTM Test Method For Resistance of Protective Clothing Materials to Permeation by Liquids and Gases (F 739–85) was conducted. The smaller test cell was tested using acetone as the challenge liquid chemical and milled neoprene as the test material. The tests were performed using both air (in open-loop mode) and water (in closed-loop mode) as collection media. Results of measurements of both breakthrough time and permeation rate were compared to those obtained using the larger ASTM permeation test cell. Based on statistical evaluation by two-way analysis of variance, the small test cell gave results that were not significantly different at the 5% level from the large ASTM cell.
permeation test cell, equivalency, breakthrough time, permeation rate, openloop and closed-loop systems, analysis of variance, protective clothing
Research chemist, E. I. duPont de Nemours and Company, Inc., Haskell Laboratory for Toxicology and Industrial Medicine, Newark, DE