| 低强度紫外线对表面消毒效果的观察 |
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| 引用本文： | 胡光春.低强度紫外线对表面消毒效果的观察[J].中国消毒学杂志,1988(2). |
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| 作者姓名： | 胡光春 |
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| 作者单位： | 山东省济南市卫生防疫站 |
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| 摘 要： | <正> 紫外线消毒因具有较多优点而应用日益广泛。为使消毒效果更加可靠,一些从事紫外线消毒研究的人员曾制定了紫外线灯管强度合格的最低标准,但众说不一,有的定在30μW/cm~2,有的定在50μW/cm~2,有的为
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OBSERVATION ON EFFICACY OF LOW INTENSITY ULTRAVIOLET RAY IN SURFACE DISINFECTION |
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| Abstract: | The efficacy of ultraviolet irradiation with lamps of 21μW/cm~2, 57μW/cm~2 and 72 μW/cm~2 in intensity in disinfection of glass surface contaminated artificiallyby bacteria was studied in laboratory. The results indicated that ultraviolet lamp of 57 and 72 μW/cm~2 in intensity could kill more than 99.9% Staphylococcus albus on samples placed 1 m apart after irradiation for 15 min, and more than 99.9% spores of Bacillus subtilis var. niger after irradiation for 150 min. The ultraviolet lamp of 21 μW/cm~2 in intensity could not give above result even if the irradiation time was 1.6 times prolonged. It is considered that selection of 70 μW/cm~2 in some hospitals as the minimal intensity requirement for ultraviolet lamp used for disinfection is suitable. |
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