Development of a simple method for determination of gas permeability resistance of whole chemical protective gloves

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  • Aoki Takamasa
    Organization for Health Support and Promotion of Environment and Safety, Kyushu Institute of Technology
  • Iwasawa Satoko
    Department of Preventive Medicine and Public Health, National Defense Medical College
  • Yamamoto Shinobu
    Department of Occupational Hygiene, School of Health Science, University of Occupational and Environmental Health
  • Takeuchi Akito
    Osaka Occupational Health Service Centre, Japan Industrial Safety and Health Association
  • Tanaka Shigeru
    Department of Food and Nutrition, Faculty of Human Life, Jumonji University
  • Miyauchi Hiroyuki
    Department of Occupational Hygiene, School of Health Science, University of Occupational and Environmental Health

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Abstract

<p>Objectives: We investigated the protection performance of whole gloves by developing a straightforward permeability resistance method and evaluating the permeation over 480 min. Methods: The permeation time for toluene was obtained for seven glove types according to the Japanese Industrial Standards. In addition, the permeability resistance of whole gloves was evaluated from the ratio of collected amount of toluene in the passive layered sampler attached to the inside and outside of the glove. Results: The permeation times of the two types of polyurethane gloves evaluated were less than 1 min each. However, the percentages of toluene that permeated through the whole gloves determined by the developed method were 32.5% and 6.8% for the thin and thick gloves, respectively, at 480 min and 71.8% and 24.1% for the thin and thick gloves, respectively, at 1,440 min. Permeation times for all three types of layered films were more than 1,440 min, but the whole glove tests showed differences of 1.7%, 3.1%, and less than 0.1% at 1,440 min. The causes of these differences were assumed to be related to variations in thickness, type of material, and differences in deposition state of the various gloves. Conclusions: It became possible to grasp the permeation performance throughout whole chemical resistant gloves, which could not be known only with material testing, using a straightforward permeability test method.</p>

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