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首页> 外文会议>American Filtration Separations Society management conference >UPDATED DEVELOPMENTS ON A NEW TEST METHOD TO DETERMINE PARTICULATE FILTRATION EFFICIENCY OF SUBMICRON CARTRIDGE FILTERS
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UPDATED DEVELOPMENTS ON A NEW TEST METHOD TO DETERMINE PARTICULATE FILTRATION EFFICIENCY OF SUBMICRON CARTRIDGE FILTERS

机译：更新了一种新的测试方法，以确定亚微粒滤芯滤芯的微粒过滤效率

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Submicron cartridge filters are broadly used to clarify, purify or decontaminate many liquids in several industrial fields. Such applications are the processing of ultrapure liquids for making electronic components, the cold sterilisation of wines, bioliquids and pharmaceutical solutes and the decontamination of industrial solvents and washing liquids. Reading technical brochures of submicron filters show they are mainly characterised by their microbial rating (sterilising if they reduce to a given ration the number of standard micro organisms). Very few brochures state a micron rating based on particle size and when they do, they do not refer to any test method. To answer the need of several large end users, IFTS Inc. has developed a new protocol to measure the initial filtration efficiency of submicron and microfiltration cartridges. Previous papers have described the test equipment, products and protocols and showed first set of very encouraging results. However the need of measuring the instantaneous efficiency all over the life of the cartridge, i.e. till its differential pressure reaches the maximum value specified by the cartridge manufacturer, was not satisfied. A research program has been launched to look for the materials, products and procedures which would comply with contradictory requirements. These are imposed by on one side, the need for clogging the cartridge in a limited period of time to give an economically acceptable test time, and on the other side, the technical characteristics of the particle counter sensor, generally blocked by large and too many particles and the ability of the test loop to maintain the concentration of contaminants in an acceptable range of concentrations. The paper will describe the difficulties faced and the solutions adopted to fulfil these requirements. Typical results and criteria of validation of the test conditions and equipments will be explained and discussed. A first set of results obtained on different cartridges from industrial market shall be presented.
机译：亚微米盒式滤芯过滤器广泛用于澄清，净化或净化许多工业领域的许多液体。这些应用是加工用于制造电子元件的超纯液体，葡萄酒，生物糖苷和药物溶质的冷灭菌和工业溶剂的净化和洗涤液。阅读亚微米过滤器的技术小册子显示，它们主要是它们的微生物额定值（如果它们降低到给定的标准微生物的数量，则灭菌）。非常少数小册子状态陈述基于粒度和当它们的微米等级，它们不参考任何测试方法。为了回答几种大型最终用户的需求，IFTS Inc.开发了一种新的协议，以测量亚微滤器和微滤墨盒的初始过滤效率。之前的论文描述了测试设备，产品和协议，并显示了第一组非常令人鼓舞的结果。然而，需要测量盒式筒的寿命的瞬时效率，即其差压达到墨盒制造商指定的最大值，并不满足。已启动研究计划，以寻找将符合矛盾要求的材料，产品和程序。这些是在一侧施加的，需要在有限的时间内堵塞墨盒，以提供经济上可接受的测试时间，并且在另一侧，粒子计数器传感器的技术特性，通常被大且太多阻挡粒子和试验回路的能力保持在可接受的浓度范围内的污染物浓度。本文将描述面临的困难，并采用的解决方案来满足这些要求。将解释和讨论测试条件和设备验证的典型结果和标准。应提出在工业市场的不同墨盒上获得的第一组结果。

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