近来，我们接到不少中国客户关于依据ISO/TR 13353(1994)标准对燃油滤清器进行性能测试的咨询，他们希望我们依据这个标准来进行试验。
ISO/TR 13353(1994) 是一个旧的标准，早在2002年8月29日就已经撤销了。我们向这些客户解释：我们IFTS还有一些可用的ACFTD，我们可以将测试得到的µm(c)转换成µm，这也是我们可以使用这个旧标准做测试的原因。
这些国内的客户说是他们的客户（即滤清器用户）要求他们使用这个标准进行燃滤性能测试。
本文将介绍这个燃油滤清器性能测试标准的升级。以期帮助广大滤清器用户和滤清器制造商了解这个标准的背景。
Recently, we have got some inquires for fuel filter testing according to ISO/TR 13353(1994) from the customers in China, they asked us to run test for them according to this standard.
ISO/TR 13353(1994) is an old test standard which has already been withdrew on August 29th of 2002. We explained that we have some more ACFTD available by IFTS and we can correlate from µm(c) to µm. That is the reason why we can work according to this old standard.
These Chinese customer told us their customers (the filter end users) ask them to use this standard to test the fuel filter.
This article introduces the upgrading of this testing standard for diesel fuel filters. Try to help filter users and filter manufacturers to understand the background of this testing standard.
Filtration is one of the most broadly spread operation in industrial workshops processing products is a liquid phase and on machines using a liquid as an ancillary working tool or as a source of energy.
Among other solid-liquid separation techniques, i.e. centrifugation, settling, flotation and cycloning, filtration is the most versatile one. Its possible equipments and operation principles are so different that most of problems can be solved by a filter, whatever the scope of the separation: either to recover the solid phase from a solid liquid mixture or to give the liquid a given degree of clarification or a specified suspended solid concentration.
The filtering media plays the key role in a filter. To satisfy the requirements of both the separation process and the technology, a great variety of media has been developed. Their choice is a difficult task: first all above requirements cannot always be stated or quantified what means that the user’s needs are sometimes unknown in their whole. Second the ability for use in each specific condition of each existing media can hardly be determined for technical and cost reasons.
Tests have thus to be performed in laboratory conditions to simulate as faithfully as possible actual field operating conditions so as to quantify the properties of the media in relation with the function they will have to full fill.
Each professional sector then creates its own test methods and standardization is a way of simplifying and clarifying disclaim of the media characteristics.
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This Article in French
过滤在工业品中以及使用液体作为机器能量来源或辅助工具是最广泛的应用之一。
除了诸如离心，沉降，浮选旋流等固液分离技术外，过滤是最通用的一种。不论设备和操作原理多么不尽相同，也不论分离的范围如何：如从固液混合物中分离固体，或是给液体设定一个净化度或制定的固体悬浮物浓度等，绝大部分的问题都可以通过过滤器来解决。
过滤器的滤材担负着关键角色。为了要满足分离过程和技术的需求，各种各样的滤材被开发出来。如何选择滤材是一个困难的任务：首先，过滤的需求有时并未被过滤器的用户所清晰地定义出来，这就意味着滤材用户有时根本就不知道客户的需求；其次，由于技术和资金的原因，已有的不同滤材在各种不同的特定环境的下的能力也很难被测定。
一些试验因此会在实验室环境下开展，以尽可能真实地模拟真实工况，并量化滤材的属性及其将要实现的功能的关系。
各个专业组织创建自己的测试方法和标准是一种对滤材性能的简化和澄清的方法。
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