{"product_id":"portable-filter-integrity-tester","title":"Portable Filter Integrity Tester for Membrane Filter Validation | Diffusion, Bubble Point \u0026 Pressure Hold Testing","description":"\u003ch2\u003eProduct description\u003c\/h2\u003e\n\u003cp\u003eA portable filter integrity tester is a measurement instrument used to verify the integrity of membrane filters in pharmaceutical, biotechnology, food processing and other regulated filtration processes. The device performs non-destructive integrity tests that confirm whether a filter meets the required retention performance before or after use.\u003c\/p\u003e\n\u003ch3\u003eTechnical overview\u003c\/h3\u003e\n\u003cp\u003eFilter integrity testing is a standard validation step for membrane filtration systems used in sterile filtration and critical liquid processing. Portable integrity testers provide controlled pressure measurement and flow analysis to determine whether the installed filter cartridge or membrane filter meets its specified performance. These instruments are typically used with cartridge filters, capsule filters or membrane filtration systems and can perform several commonly accepted integrity test methods within a single device.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOperating principle\u003c\/h2\u003e\n\u003cp\u003eFilter integrity testers operate by applying controlled pressure to a wetted filter element and measuring the resulting gas flow through the membrane structure. Depending on the selected method, the device measures parameters such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGas diffusion through the wetted membrane\u003c\/li\u003e\n\u003cli\u003ePressure stability over time\u003c\/li\u003e\n\u003cli\u003eBubble formation at increasing pressure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommon integrity test methods include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eForward flow \/ diffusion test\u003c\/li\u003e\n\u003cli\u003eBubble point test\u003c\/li\u003e\n\u003cli\u003ePressure hold test\u003c\/li\u003e\n\u003cli\u003eWater intrusion test (for hydrophobic membranes)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese measurements allow verification of membrane integrity without damaging the filter element.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMaterial options\u003c\/h2\u003e\n\u003cp\u003eTypical construction materials for portable integrity testing instruments include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial-grade stainless steel or aluminum enclosures\u003c\/li\u003e\n\u003cli\u003ePolymer or stainless steel pneumatic components\u003c\/li\u003e\n\u003cli\u003ePrecision pressure sensors\u003c\/li\u003e\n\u003cli\u003eChemically resistant tubing and fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaterial compatibility should be evaluated based on the test fluid, wetting liquid and cleaning procedures used in the filtration process.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable micron ratings\u003c\/h2\u003e\n\u003cp\u003eIntegrity testing instruments are not limited to a specific micron rating. Instead, they are used to verify membrane filters across a wide range of filtration grades. Typical membrane filters tested include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e0.1 µm sterile filtration membranes\u003c\/li\u003e\n\u003cli\u003e0.2 µm sterilizing grade membranes\u003c\/li\u003e\n\u003cli\u003e0.45 µm clarification membranes\u003c\/li\u003e\n\u003cli\u003eMicrofiltration and ultrafiltration membranes depending on test method\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe tester verifies whether the installed filter meets the expected integrity parameters associated with the specified filtration rating.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eDesign and construction\u003c\/h2\u003e\n\u003cp\u003ePortable integrity testers are designed for flexible use in laboratory environments, cleanrooms and production facilities. Typical system characteristics include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact portable design for use at different filtration stations\u003c\/li\u003e\n\u003cli\u003eIntegrated pressure control and measurement sensors\u003c\/li\u003e\n\u003cli\u003eProgrammable integrity test methods\u003c\/li\u003e\n\u003cli\u003eDigital display and data recording capabilities\u003c\/li\u003e\n\u003cli\u003eConnection interfaces for cartridge filter housings and test adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese instruments can be used during filter validation, production start-up checks, or post-filtration integrity verification.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTypical applications\u003c\/h2\u003e\n\u003cp\u003ePortable filter integrity testers are commonly used in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePharmaceutical sterile filtration validation\u003c\/li\u003e\n\u003cli\u003eBiotechnology processing\u003c\/li\u003e\n\u003cli\u003eFood and beverage filtration quality control\u003c\/li\u003e\n\u003cli\u003eWater treatment filtration validation\u003c\/li\u003e\n\u003cli\u003eLaboratory testing of membrane filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIntegrity testing is typically performed before and after filtration to confirm filter performance during critical processes.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerification of membrane filter integrity without destructive testing\u003c\/li\u003e\n\u003cli\u003ePortable testing instrument for laboratory and production environments\u003c\/li\u003e\n\u003cli\u003eSupports multiple standard integrity test methods\u003c\/li\u003e\n\u003cli\u003eHelps maintain process validation and filtration reliability\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of cartridge and membrane filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eConfiguration and quotation\u003c\/h2\u003e\n\u003cp\u003eTo configure a portable filter integrity tester for a filtration system, the following parameters should be considered:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequired test methods (diffusion, bubble point, pressure hold, water intrusion)\u003c\/li\u003e\n\u003cli\u003eOperating pressure range\u003c\/li\u003e\n\u003cli\u003eFilter type and membrane material\u003c\/li\u003e\n\u003cli\u003eConnection type to the filter housing\u003c\/li\u003e\n\u003cli\u003eData recording or validation requirements\u003c\/li\u003e\n\u003cli\u003eProcess environment (laboratory, cleanroom, production)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProviding these parameters helps determine the appropriate tester configuration and compatible accessories. \u003cscript type=\"application\/ld+json\"\u003e\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"What is a filter integrity tester?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"A filter integrity tester is a measurement instrument used to verify whether a membrane filter meets its required retention performance by measuring gas flow or pressure behavior through the filter.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Which integrity tests can be performed with a portable filter tester?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Typical tests include diffusion (forward flow), bubble point, pressure hold and water intrusion tests depending on the filter type and process requirements.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Why is filter integrity testing important?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Integrity testing confirms that a filter cartridge or membrane has no structural damage or defects and can perform the intended filtration function.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Which filters can be tested with an integrity tester?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Integrity testers are typically used for cartridge filters, capsule filters and membrane filters used in sterile or critical liquid filtration processes.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"When should filter integrity testing be performed?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Integrity testing is commonly performed before and after filtration to verify that the filter is intact and capable of performing the required filtration function.\"\n}\n}\n]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"Filtra International","offers":[{"title":"0–4 bar \/ Pharmaceutical \/ Biotech \/ Standard portable unit","offer_id":56102147162438,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true},{"title":"0–4 bar \/ Pharmaceutical \/ Biotech \/ With integrated printer","offer_id":56102147195206,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true},{"title":"0–4 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