All our membrane filters are monitored for both burst (longitudinal ) and tensile ( lateral) strength.As part of a comprehensive quality program, only high purity reagents and raw materials are used to produce membranes. The membrane polymers we supply are the following: Mixed Cellulose Esters (MCE) , Cellulose Acetate , Coated Cellulose Acetate, Hydrophilic PTFE , Hydrophobic PTFE , Hydrophobic PTFE with support PP net and Polycarbonate membrane