Prep/Scale spiral wound filter modules provide the ultimate in convenience for economical preparation of laboratory scale samples up to small production volumes by tangential flow filtration. The performance of Prep/Scale modules is highly reliable and consistent. Each Prep/Scale spiral wound module is 100% integrity tested.
How many times can I reuse TFF membranes?
» Answer
It is possible to reuse both ultrafiltration and microporous membranes used in Millipore Tangential flow systems (Miniplate, Prep Scale etc.). The number of uses for any given set of membranes is directly related to the effectiveness of the cleaning and storage protocols used. Please refer to the TFF Maintenance Guides for suggested cleaning and storage procedures.
How do you integrity test the Prep/Scale cartridge?
» Answer
One would integrity test a Prep/Scale cartridge by performing a diffusion test. A diffusion test is very unlike that of a bubble point test. For specific parameters and procedures see the Maintenance Procedure Manual literature number P34409.
How many gauges come with the Prep/Scale holder?
» Answer
Only one analog pressure gauge comes with the Prep/Scale holder. If you desire operation with two gauges, you may purchase an extra analog pressure gauge with catalog number: B26524. Alternatively, you may purchase the Digital Pressure Gauge Kit which contains two high accuracy pressure gauges with 3/4" sanitary clamp fittings to attach to the Prep/Scale holder.