关于博主

About wu.zhigang

Zhigang Wu (吴治钢)
Tel: +86 (0)186-0215-3036
Fax: +86 (0)21-5196-3159
Email: wu.zhigang@filtertesting.com
QQ: 7252750 

订阅本博客

RSS

搜索博客文章


#Saperate

博客文章列表

1 / 1
Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

ISO/TR 13353(1994)标准已不再有效

  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。

  在1994年,IFTS创建起草了ISO TR 13353标准用来评估燃油滤清器的过滤效率和容灰量,BOSCH接受并使用了该标准。ISO TR 13353 (1994) 分为两个部分:第一部分是用于评估滤清器的初始效率(单次通过循环,5mg/L 的ACFTD ——过滤效率表述为多少µm的粒子效率是多少;第二部分是用于评估滤清器的容灰量(多次通过循环,50mg/L 的ACFTD,终止条件为压差上升70kPa)

  自从1999年起,ACFTD已经不再生产;被ISO MTD取代。而且颗粒计数器的标定标准也由ISO 4402(1991)升级到了ISO 11171(1999)。延伸阅读:试验粉尘的历史(英文版中文版);

  ISO/TS 13353(2002)是作为评估初始效率的标准而被重新审核评估的(使用上游杂质浓度 5mg/L 的ISO MTD,单次通过——过滤效率表述为多少µm (c)的粒子的过滤效率是多少。

ISO 19438 (03)被用于评估滤清器的效率和容灰量的评估,使用的是50mg/L ISO MTD,使用在线稀释系统便于颗粒计数——过滤效率表述为多少µm (c)的粒子的过滤效率是多少。

  也就是说,现如今,ISO/TR 13353(1994) 已经无效,被ISO 19438(2003)所取代。

  于2004年进行的全球比对试验证明了在初始效率测试方面,使用ISO TS 13353 (02) 或 ISO 19438 (03)获得的结果是相似的。通常来说,包括BOSCH在内的燃油滤清器用户(或发动机主机厂)应该已经有了接受ISO 19438的规范。

  上述所有的标准替代,您均可通过在ISO官方网站上查询标准号来找到替换记录,比如下图中用红色圈出的部分显示了ISO/TS 13353(2002)曾替代了ISO/TR 13353(1994),并被ISO 19438(2003)替代。

关于新旧颗粒尺寸读取及转换,我们推荐您购买ISO/TR 16386(1999)阅读了解。

Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

ISO/TR 13353:1994 is no longer available

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.
 
 
ISO/TR 13353(1994) was founded by IFTS and accepted by BOSCH in 1994. It is in order to qualify the filtration efficiency and the retention capacity of fuel filters. This procedure is divided in two parts: a first one is dedicated with the determination of the initial filtration efficiency (singlepass circulation at 5 mg/L of ACFTD – expression of the filtration ratings in µm); The second one is dedicated with the determination of the retention capacity (multipass recirculation at 50 mg/L of ACFTD up to an increase of DP of 70 kPa).
 
Since 1999, the ACFTD no more available ; it has been replaced by ISO MTD and the calibration for the APC (automatic particle counter) has been upgraded: the ISO 4402(1991) has been revised by the ISO 11171(1999). About dust history, please read here.
 
ISO/TS 13353(2002) has been reviewed and is only dealing with the determination of the initial filtration efficiency (according to a BUGL of 5 mg/L of ISO MTD in a single pass way – expression of the filtration ratings in µm(c) ).
 
ISO 19438 (2003) has been standardised for determining both the filtration efficiency and the retention capacity with working in a multipass recirculation with a BUGL of 50 mg/L of ISO MTD and on line dilution concerning particle counting – expression of the filtration ratings in µm(c) ).
 
That is to say, nowadays, ISO/TR 13353 (1994) is no more available. Has been replaced by ISO 19438(2003).
 
Last round robin tests in 2004 have proven that the determination of the initial filtration efficiency is similar whatever using ISO/TS 13353 (2002) or ISO 19438 (2003). Normally, including BOSCH, the fuel filter users should make the specification with using ISO 19438 procedure.
 
All above standards’ upgrading, you could find records on the official ISO website. For example, you could find the revision information for ISO/TS 13353(2002) in below image, it revised ISO/TR 13353(1994) and has been revised by ISO 19438:

 

For more detailed historical background, we suggest you to refer to ISO/TR 16386(1999).

Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

How to Optimize the Choice of Filtering Media

SUMMARY

Liquid filter media all have the same role of letting the liquid flow through whilst retaining a part if not all particles in suspension. Liquid filtration occurs in a very broad variety of processes and equipments, from engines fuel or lubricating oil to drinking water through chemicals, blood or varnishes.

Depending on the type of filter used, filtering media are of made of layers of grains (sand or diatomites) or of fibers, which can be wound or processed or papers.

The variety of techniques, processes and liquids they are applied to create a broad spectrum of technical requirements and properties. Tests are developed to evaluate these properties in accelerated conditions, cheaper and much faster than actual operation ones.

The lecture will present an overview of the characteristics of filter media (from granular ones to sterilizing membranes) classified in four families: intrinsical relating to the internal structure of the porous media, hydraulic which cover the impact of the media on the fluid flow, performances, i.e. how the media retains particles or undesirable substances and the impact of their retention on both the permeability and the efficiency and compatibilities, including all “negative” interactions between the media material and the filtered fluid.

Main test procedures (especially standard ones) will be summarised. A brief presentation will be made of their principles, of the equipments and products used, of the criteria of validation of test benches.

The way raw data have to be processed to obtain standard test report will be explained and typical interpretation of data oriented toward the optimisation of the choice of filtering media will be given.

By: Christophe PEUCHOT, Managing Director

Translate by: Zhigang WU, Asian Market Manager

Read the Chinese version of this article

Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

IFTS provide the world best liquid filter testing services (IFTS 为您提供世界一流的液体滤清器测试服务)

IFTS的总部位于法国西南部城市Agen,在波尔多和图卢兹之间;IFTS在中国上海的员工吴治钢负责IFTS Asia地区的业务,覆盖中国、印度、澳大利亚、日本等亚洲区国家(联系他);IFTS在美国新泽西州的员工Jerry负责美国市场的业务(联系他)。

 
IFTS’s headquarters is located in the South-West of France, between Bordeaux and Toulouse; IFTS’s staff Mr. Zhigang Wu who located in Shanghai takes charge of business for Asia area, include China, India, Australia, Japan and so on (email him); Mr. Jerry Lynch who is located in New Jersey takes charge of business in America market (email him).
 
IFTS全体员工竭诚为您提供全球一流的第三方液体过滤器测试服务,期待您的咨询联系。
 
IFTS staffs looking forward to provide you the world leading third party liquid filter testing services.

IFTS Team

 

Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

如何优化液体过滤应用的滤材选择

介绍

  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。具体请点击本文标题,阅读全文;
Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

About IFTS

www.filtertesting.com is a subsite belong to IFTS, this website will focus on reporting and introducing filter testing techniques, newest testing standards developing trend, the activities that IFTS has joined and so on.

IFTS is the abbreviation of Institute of Filtration and Techniques of Separation which was founded in 1981, also is the abbreviation of the International Filter Testing Services. Our headquarters is located in Agen France. We have the world classic filtration & separation products testing lab, we focus on Solid-Liquid Separation (SLS) products testing, we are a totally independent body and are not answerable to any external industrial organization.
 
We have over 200 customers and over 45 members around the world,we have opened for over 30 filter manufactures’ visiting, these numbers are keep increasing. Some of the customers or members are competitors to each other, but we fully guarantee customers’ confidentiality! We have got the ISO 17025 certification since 1988.
 
Besides testing service, we also could build the world classic filter performance testing equipments. From the industrial filters to auto filters to drinking water filters to bacteria filters, we know how to test all liquid filters. Our experienced experts and scientists will satisfy your various requirements for all kinds of liquid filters testing. We also attended some ISO standards drafting and validation works for ISO committee,such as ISO 16332, ISO 16232 and so on…
 

IFTS Building


IFTS 视频介绍

Anchor
七月.201112
文章编辑: 可视编辑
UBB编辑

关于IFTS

  www.filtertesting.com是法国IFTS旗下的子网站,本站将专注于报道和介绍过滤器测试技术,最新检测标准的发展趋势,IFTS参与的活动等等。
 
  IFTS 是Institute of Filtration and Techniques of Separation和International Filter Testing Services的缩写,我们成立于1981年,总部设在法国的Agen。我们拥有世界一流的过滤与分离产品实验室,专注于固体与液体分离产品的检测。IFTS是一家完全独立的第三方检测中心,不听命于任何外部工业组织。
 
  我们在全球拥有超过200家客户和超过45家会员,我们开放地接受了超过来自全球30家滤清器厂商的拜访,这一数字还在持续增长中。这些客户和会员单位中有一些互为竞争对手,但我们完全保证所有客户的机密。我们的在1988年即已通过了ISO 17025实验室认可。
 
  除了滤清器检测服务,我们还制造世界一流的滤清器性能测试设备,从汽车、工业液体过滤器到饮用水过滤器到生物灭菌膜过滤,我们在固液分离技术领域有着丰富经验的专家、科学家们能满足您的各种需求;我们还参与一些国际标准的起草和验证工作,如ISO 16332、ISO 16232等……

 

IFTS远景照


IFTS 视频介绍

按月归档

2012 年的归档

五月 六月 九月

2011 年的归档

七月 八月 九月 十二月

热门文章

DeepEyes Version 1.2.21