微生物对杀菌紫外线（UV）辐射的敏感性以可控且可重复的方式进行量化，以评估商业紫外线系统的功效。ANSI/NSF 55标准被用作测试四种商用紫外线装置功效的指南。评估程序包括利用低压汞灯进行分批紫外线照射实验，以绘制几种微生物的紫外线剂量响应曲线。这些微生物随后被用于流通测试设施，以挑战商业紫外线装置。通过UV反应器实现的失活被量化，并与UV剂量进行比较- 确定装置在流动条件下输送的紫外线剂量的响应曲线。在制造商的额定流量下，使用干净的石英套筒，以及在较高和较低的流量下，以及在较不理想的紫外线透射率条件下，紫外线装置受到挑战。此外，通过使用紫外分光光度计的批量实验，对潜在饮用水中常见的几种化合物的紫外吸收率进行了检查。包括表格、数字。

The sensitivity of microorganisms to germicidal ultraviolet (UV) radiation was quantified in a controlled and reproducible manner in order to evaluate the efficacy of commercial UV systems. The ANSI/NSF 55 Standard was used as a guideline for testing the efficacy of four commercial UV units. The evaluation procedure consisted of performing batch UV irradiation experiments utilizing a low-pressure mercury lamp in order to develop a UV dose-response curve for several microorganisms. The microorganisms were then used in a flow-through test facility to challenge the commercial UV units. The inactivation achieved across the UV reactor was quantified and compared to the UV dose-response curve to determine the UV dose delivered by the unit under the flow conditions. The UV units were challenged at the manufacturer's rated flow rate withclean quartz sleeves as well as at higher and lower flow rates and under less optimal UV light transmittance conditions. In addition, the UV absorbance of several compounds often found in potential drinking waters was examined through batch experiments utilizing a UV spectrophotometer. Includes tables, figures.