PTM filters are validated using test procedures that comply with ASTM F 838-15(ae1) protocols for the determination of bacterial retention in filters used for liquid filtration. The challenge level is a minimum of 107 organisms per cm2 of filter media. CPF filters have > 7-log removal when challenged with the organisms (0.10µm and 0.22µm meets the FDA definition of sterilizing grade filters).
- 0.10µm: Brevundimonas diminuta
- 0.22µm: Brevundimonas diminuta
- 0.45µm: Serratia marcescens
Validation Guides available upon request.
PTM filters are 100% integrity tested. CPF filters are developed and manufactured under an ISO 9001:2015 certified Quality Management System and designed to be used in cGMP-compliant processes.
Available from 5-40 inches in length with several end connections and O-ring options. For applications using elevated temperatures, PTM/HT Cartridges can be used in processes up to 221°F.
These filters are PTM cartridges encapsulated in a polypropylene shell to minimize exposure to process fluids. A popular choice for single-use applications and can be disposed of easily. Sizes range from 2-30 inches in length.
Mini-capsules are designed for lab scale testing, process development and small batch production with a filtration area of 500 cm2.