Sterile Syringe Filters: Made for reliable performance, our syringe filters are sterile polyethersulfone (PES) syringe filters. Every batch of syringe filters is certified for HPLC extractable testing. Filter Size: Membrane Diameter 33mm, Pore Size: 0.22 Micrometre, Pack of 10. Pore structure suitable for laboratory sterilization of small volume samples. Bacterial Challenge: LRV 7 per lot of 0.22um pore size membrane (ATCC 19146, ASTM Bacterial Challenge Test). Less than 0.25 EU or mL or Less than 2.15 EU or equipment () for each batch of equipment pressure required to empty the syringe. High Flux: Larger filter surface area increases flow rate and flux. It also makes it easier to filter the solution because it reduces the pressure required to empty the syringe. Biosafety: Complies with USPB bioreactivity testing for Class VI plastics. To better the accuracy of the experiment. Colour:green Material: pes Package Contents: 10 x Syringe Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.