美國 Sterlitech EPA PM 2.5 PTFE Filters, 46.2mm; 50/Pk PTFE 濾膜

美國 Sterlitech EPA PM 2.5 PTFE Filters, 46.2mm; 50/Pk PTFE 濾膜

PM 2.5 PTFE 膜過濾器專為 PM 2.5 環境空氣監測而設計。這些高純度、薄過濾器按順序編號，并帶有耐化學腐蝕的聚丙烯支撐環。

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

規格：

EPA PM2.5空氣監測膜過濾器規范

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