美国 Sterlitech EPA PM 2.5 PTFE Filters, 46.2mm; 50/Pk PTFE 滤膜

PM 2.5 PTFE 膜过滤器专为 PM 2.5 环境空气监测而设计。这些高纯度、薄过滤器按顺序编号，并带有耐化学腐蚀的聚丙烯支撑环。

规格：

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