Thermal stability is important when considering filter or device sterilization, such as autoclaving. Certain filtration media and devices are not autoclavable due to insufficient thermal stability. Top Flow Rate and Throughput Flow rate and throughput are two important related measures of filter media and device performance. This performance is affected by many different variables. As the filter begins to clog, upstream pressure increases and differential pressure increases.
Viscosity determines a liquid's resistance to flow.
The higher the viscosity of a liquid, the lower the flow rate and the higher the differential pressure required to achieve a given flow rate. Disposable filtration devices such as syringe filters and capsule filters are the most convenient means for filtering any sample volume. A second common configuration for filtration products is disc filters that are installed by the end-user into a reusable piece of hardware made of stainless steel or a polymeric housing material. To help you determine whether a filter will be suitable for your application, manufacturers use various tests to rate the performance of the filter under certain conditions. Testing is performed to determine whether leachables are capable of inducing measurable degrees of systemic toxicity, localized skin irritation, sensitization reaction, or other biological responses.