Filter Integrity Tester

Filter Integrity Tester is suitable for integrity testing of various filter membranes, disc filters, capsules, cartridges, etc. This tester is a compact, easy-to-use, and fully automated integrity test instrument, which performs the bubble point, enhanced bubble point, forward flow, water intrusion, and pressure decay tests for hydrophobic filters.

Applications：

This instrument is applicable to determine the integrity test of filters.

It is suitable for testing the integrity of filters for the pharmaceutical and biotechnology industries.

It is suitable for integrity testing of filters in industries such as food and beverage, electronics, membrane manufacturing, air filtration, etc.

Feature：

Complete testing methods: capable of automatic bubble point, diffusion flow, pressure decay, and water intrusion flow rate testing to meet various testing needs.

Real-time display and analysis: real-time display of test data and curves, monitoring the entire testing process, helping analyze the performance of membranes, filters, and filtration systems.

Precise and time-saving testing algorithms: automatic airflow adjustment device, advanced microelectronic circuit, combined with precise algorithm software, ensuring high accuracy and reproducibility while reducing testing time by 20% to 30%.

Scientific and convenient data management: supports USB and SD card, allowing easy import and export of data between the tester and computer. The upper computer uses the matching eDATA 840 software for database management and A4 page printing with multi-level permissions management: adopting a four-level authorization security management mode to make database use and management more secure, organized, and compliant with GMP production requirements.

Permanently saved test results: needle-type wide-line Chinese printing can simultaneously print test results and test curves for permanent archiving.

Convenient data transmission: equipped with an Ethernet interface, can connect to the factory network system, and is compatible with data collection systems or intelligent management systems for real-time data transmission.

Comprehensive audit trail: complete audit trail functionality, capable of recording events such as power on/off and login, as well as actions like creating, modifying, deleting, backing up, and verifying. It complies with the ALCOA principles, which require data traceability, readability, synchronicity, originality, and accuracy.

Technical Specifications：

Frequently Asked Questions about the Filter Integrity Tester

What is a filter integrity test?

Filter integrity tests are conducted to verify and ensure that a filter membrane meets quality and regulatory requirements. If a filter fails the integrity test, it indicates that the filter is no longer reusable and that previously filtered batches may need inspection.

How does a filter integrity tester work?

Filter integrity testing can be categorized into two types: Destructive and Non-Destructive testing. Non-Destructive tests include the Bubble Point, Diffusion, and Pressure Decay tests, which are chosen based on specific testing requirements.

What is the bubble point test for filters?

The bubble point test operates on the principles of capillary action and surface tension. When liquid passes through the filter, it fills the pores due to these forces. Pressure is then applied to displace the liquid from the pores, allowing for pore size measurement. The minimum pressure required to push the liquid out from the smallest pore determines the bubble point, which indicates the pore size.

What is the water intrusion test?

This test is commonly used to detect defects in hydrophobic filters, typically used as air vent filters. In this test, water is pressurized into the upstream side of the filter to assess filter quality, comparing results to the manufacturer's specifications.

What does bubble point mean?

The bubble point is the minimum pressure at which the first bubble of liquid emerges from a pore in the membrane. This pressure value helps characterize the pore size and quality of the filter.