Made of pure PTFE membrane bonded to a polypropylene non-woven support, the extreme chemical compatibility makes it an ideal material for filtration of almost all solvent, acids and alkaline solutions, and organic-based aqueous samples, and is commonly used for HPLC solvents sample preparation. The membrane is super-clean,promises low residual contamination added to the flux during the clarifying process, ensuring the analysis is not disturbed and the results are accurate. Kunlun could supply the hydrophilic PTFE membrane in discs or rolls. Certified Biological Safety(ISO10993/USP Class VI) Optimized Backing Material, Better Sealing Capability Wide Range of Pore Size(0.02-10μm) Compatible with Different Sealing Methods Ultrasonic, Heat, RF welding, Mechanical, Insert Molding Sterilization Compatibility Autoclave, Ethylene Oxide, E-Beam, Gamma Irradiation