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概要

論文の詳細を見る
A new Swedish glass wool ear protector was checked for its practical use. Sound attenuation of this kind of ear protector corresponds to that Type-1 of the Japan Industrial Standard. But the distribution of this sound attenuation was found to be larger than that of the Rohken Type ear protector. It means that more carefulness is necessary in wearing the glass wool ear protector than in the case of that of the Rohken Type. Other characteristics are that comfort in wearing it is excellent and its fitness to the ear cannal is also good. Hygienically, glass wool keeps the ear cannal clean, except that hazard of causing dermatitis by its fibres is still remaining. Economically, the glass wool protector is more expensive than others in Japan. As a conclusion, the Swedish glass wool ear protector has still some problems to be solved for practical use, but its excellent sound attenuation and comfortability in wearing are so attractive as a new ear protector, that an improvement or a developement is hopeful.
社団法人日本産業衛生学会の論文
1966-08-20