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

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Anchor
九月.201129
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All cartridge filters are good, Some are better!

Filtering cartridges are very common products used in many industrial processes to clarify/decontaminate a broad variety of liquids (beverage, pharmaceutics, chemicals, paints, varnishes, blood, drinking water,…) and on as many types of machines (aircrafts, engines, boats, fluid power systems, road and off-road vehicles, machine tools,…).

If efficient, all filtering cartridges, whatever their type, clog, what means their differential pressure increases and/or flowrate decays. Then they cannot fulfil their function correctly and need being replaced. This creates a huge market of renewable products with plenty of suppliers offering very diverse cartridges.
 
Criteria to choose a cartridge and its supplier rather than another one strongly depend on its application. But in all cases, the key criterion is filtration efficiency. another one possibly being retention capacity.
 
Filtration efficiency guarantees the quality of the filtered liquid. It is specified/expressed by a percentage of efficiency in percent or a filtration ratio (e.g. ß) at a given particle size or by a rating, i.e. a particle size supposed to correspond to a given, often not claimed, efficiency.
 
Since the efficiency measurement method, equipment and products directly impact the values of efficiency, many professional sectors, including filter cartridge manufacturers and their end users agree on standard methods, often a compromise between technical and cost requirements, such as ASTM, NFPA, SAE or ISO standards.
 
All standard procedures allow variations of different details, e.g. accuracy of measuring instruments, variations in test conditions, type of equipment, validation criteria, etc. This means that performances claimed according to any standard by any manufacturer may not be comparable to those claimed by a competitor for the same application.
 
Thus only independent third party testing centre results can really be trusted when evaluating competing products.

Anchor
九月.201115
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IFTS leaflets downloading(IFTS 宣传页下载)

    You could download all the leatlets of IFTS from this webpage, click the flag to download the English or Chinese versions;

   你可以从本页下载IFTS的宣传页,点击国旗下载英文或中文版;
 
 1. FI-AN01 Liquid Filter Testing (液体过滤器测试)  
 2. FI-AN02 Technical Study (技术研究)  
 3. FI-AN03 Particle Size (颗粒尺寸)   
 4. FI-AN04 Particle Counting (颗粒计数)  
 5. FI-AN05 Cleaning of parts & components (零部件清洁度)  
 6. FI-AN08 Particles Counting & Identification (颗粒计数与识别)  
 7. FI-AN09 Training and Information (培训和咨询)  
 8. FI-AN10 Test Stand (试验台)  
 9. FI-AN11 Clean Solvent Dispenser (清洁溶剂分配器)  
 10. FI-AN12 Expertise and Advice on Particulate Cleanliness (颗粒清洁度的专家意见和忠告)  
 11. FI-AN13 Cyclic Multipass Filter Testing (液体滤清器的变流量循环多次通过试验)  
 12. FI-AN14 Wear and Tear of Components (零部件磨损试验)  
 13. FI-AN15 Particulate Contamination (杂质颗粒)  
 14. FI-AN17 Particle Counting Cabinet (颗粒计数柜)  
 15. FI-AN18 Aperture Holder (孔板座)  

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