Filter integrity testing verifies the performance of sterile filters used in buffer and reagent manufacturing. It ensures buffer consistency and batch success. Learn more about bubble point testing for your custom reagents.
Considerations and Limitations of Filter Integrity | |
|---|---|
Wetting Quality | Incomplete or uneven wetting of the membrane can lead to false readings. Proper pre-wetting is critical. |
Membrane Type | BP testing is suitable for hydrophilic membranes; other methods may be needed for hydrophobic filters. |
Pore Size Limitations | BP testing verifies the largest pore size, but may not detect very small defects or issues not related to pore size. |
Environment | Tests must be conducted in a controlled environment to avoid pressure fluctuations or measurement errors. |
Complementary Tests | In some cases, diffusion or pressure-hold tests may be used alongside BP testing for comprehensive integrity assurance. |