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0.22 um ptfe filter | Sigma-Aldrich Gravimetric Analysis Membrane Filter, 0.22 µm, mixed cellulose esters with thin pad, 37 mm, white. A 0.22 µm pore size non-sterile filter validated for air monitoring. With biologically inert mixtures of cellulose acetate & cellulose nitrate, MF-Millipore membranes are widely used in analytical & research applications. Ptfe filter membrane | Sigma-Aldrich Product No. Description. Pricing. PM2547050. The PTFE Membrane for PM2.5 Particle Monitoring...

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