EPA PM 2.5 PTFE Filters, 46.2mm; 50/pk

EPA PM2.5 Air Monitoring Membrane Filters Specifications

Alkalinity Max.	25 µeq/g of filter Test Method: Section 2.12 EPA/600/R-94/038b
Complete Packsize	50 Pieces
Material	Polytetrafluoroethylene (PTFE)
Particle Retention [0.3 µm] 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
Total Support Ring Thickness	0.38 mm ± 0.04