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首页> 外文会议>16th Annual technical conference and exposition of the American Filtration and Separations Society >CHARACTERIZATION OF PARTICLE SIZE DISTRIBUTIONS OF ATOMIZERS ANDCONDENSATION GENERATORS USED FOR TESTING HIGH EFFICIENCY FILTERS
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CHARACTERIZATION OF PARTICLE SIZE DISTRIBUTIONS OF ATOMIZERS ANDCONDENSATION GENERATORS USED FOR TESTING HIGH EFFICIENCY FILTERS

机译：用于测试高效过滤器的雾化器和冷凝发生器的粒径分布特征

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摘要

High efficiency filters are typically tested both as manufactured and after installation. In many cases,rnsuch as in pharmaceutical applications, filters are periodically required to be tested in situ. As in any filterrnperformance testing, one needs a challenge aerosol. Polystyrene Latex spheres with traceable sizes arernthe preferred challenge in the micro electronic industry. For the rest of the filter markets, oil aerosolsrnproduced either by atomization or by vapor condensation are the common test aerosols.rnFilter performance is size specific and small changes in particle sizes at which they are tested can resultrnin large differences in reported performance. It is quite common in the real world for the same filter to bernacceptable when tested with one aerosol while deficient if tested with another.rnThis paper will report on experimental measurement of the aerosols generated by commonly usedrnatomizers and vapor condensation generators. The size distribution for different oils and test conditionsrnwill be reported. Their implication on filter testing will be addressed especially as it pertains to thernproblem commonly referred to in the trade as "bleed-through".
机译：高效过滤器通常在制造时和安装后均经过测试。在许多情况下，例如在制药应用中，需要定期对过滤器进行原位测试。与任何过滤器性能测试一样，需要挑战性的气雾剂。具有可追溯尺寸的聚苯乙烯乳胶球是微电子工业中的首选挑战。在其余的过滤器市场中，通过雾化或蒸汽冷凝产生的油雾剂是常见的测试雾剂。过滤器的性能是特定于尺寸的，并且在测试时粒径的微小变化会导致所报告的性能差异很大。在现实世界中，使用一种气雾剂测试同一过滤器是可接受的，而使用另一种气雾剂测试是不足的，这在现实世界中是可以接受的。本文将报告由常用的雾化器和蒸汽冷凝发生器产生的气溶胶的实验测量结果。将报告不同油品的尺寸分布和测试条件。它们对过滤器测试的影响将得到特别解决，因为它与通常在行业中称为“渗漏”的问题有关。

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