Research Matters
Filtry membranowe do monitoringu pyłu zawieszonego PM2.5
Filtry membranowe z PTFE PM2.5 przeznaczone są do monitorowania powietrza atmosferycznego przy oznaczaniu pyłu zawieszonego PM 2.5. Te cienkie filtry o wysokiej czystości są kolejno ponumerowane i wyposażone w odporne chemicznie pierścienie supportujące z polipropylenu.
Whatman™ PM2.5 PTFE membrane filters are designed for PM 2.5 ambient air monitoring. These high-purity, thin filters are sequentially numbered and come with chemically resistant polypropylene support rings.

• Polypropylene support rings for robotic air sampling
• Thermally stable design eliminates curling, keeps the membrane flat, and makes the filter robot-friendly
• Sequentially numbered filters
• Low tare mass for accurate gravimetric determinations

Robotic air sampling filter for PM 2.5 air monitoring
Ambient air monitoring requires a chemically resistant air sampling filter that can withstand environmental pollution potentially containing a variety of contaminants and can still deliver accurate results.

PM2.5 PTFE membrane filters also feature a thermally stable design, making them ideal for ambient air monitoring. These membranes come in a polypropylene support designed for use in robotic air sampling.

PM 2.5 air monitoring filter conformance
These air sampling filters comform to the PTFE Filters for EPA PM 2.5 Reference Method, under the requirements of 40 CFR Part 50, Appendix L.
Filtry membranowe do monitoringu pyłu zawieszonego PM2.5
Filtry membranowe do monitoringu pyłu zawieszonego PM2.5
Filtry membranowe do monitoringu pyłu zawieszonego PM2.5
Alkalinity Max. 25 µeq/g of filter - Test Method: Section 2.12 EPA/600/R-94/038b 
Diameter 46.2 mm
Material Polytetrafluoroethylene (PTFE) 
Particle Retention (0.3 mu m) Min. 99.7% - Test Method: ASTM D 2986-95a 
Pore Size 2 µm
Support Ring Yes 
Support Ring Material Polypropylene (PP) 
Support Ring Width 3.68 mm ± 0.00 to 0.51 - Test Method: template 
Total Support Ring Thickness 0.38 mm ± 0.04 
Nr kat. Opis produktu Il./opak.
7592-104 PM2,5 PTFE Membrane Filter, 46,2 mm with support ring, sequentially numbered (50 pcs) 50 pieces
7592-104;PM2,5 PTFE Membrane Filter, 46,2 mm with support ring, sequentially numbered (50 pcs);50 pieces