Due to the pronounced positive zeta potential these grades of filter sheets are particularly suited for adsorptive removal of negatively charged particles from aqueous suspensions.As opposed to standard filter sheets, depth filter sheets with an adsorptive effect exhibit a considerably improved clarifying effect without a sacrifice in output.
The grades Z 200 and Z 400 are characterized by a high bacteria retention capability; provided that they are suitably conditioned, they are capable of removing pyrogens from aqueous solutions.
For pyrogen removal, see also special documentation on Depth Filter SUPRA EK 1P.
Z-Series adsorptive filter sheets are compatible with most solvents as well as acids and alkalis provided that their concentration is not very high.
|Z200||Enzyme solutions, fermenter broths, water|
The tests are performed in accordance with the methods of the Technical and Analytical Work Group within the European Depth Filtration Association or in accordance with in-house test methods.
|Sheet||Weight per Area (g/m2)||Thickness (mm)||Ash (%)||Extractable Ions Soluble in Acetic Acid (5%) [mg/m2]|
Heavy metals < 50 ppm (according to the Recommendation XXXVI/1 BgVV-German Federal Institute for Health Protection of Consumers and Veterinary Medicine).
The figures quoted in the diagrams and tables should be regarded as guidelines.The Following Certificates are Available:
- Certificate of Compliance according to DIN 50049-2.1/EN 10204-2.1
- Materials Safety Data Sheet
The depth filters conform to the Recommendation XXXVI/1 BgVV (German Federal Institute for Health Protection of Consumers and Veterinary Medicine) and meet the requirements of the Lebensmittel- und Bedarfsgegenständegesetz – LMBG – (Foodstuff and other Commodities Act), in particular §§ 5, 30 and 31.