美國(guó) Sterlitech EPA PM 2.5 PTFE Filters, 46.2mm; 50/Pk PTFE 濾膜
PM 2.5 PTFE 膜過(guò)濾器專為 PM 2.5 環(huán)境空氣監(jiān)測(cè)而設(shè)計(jì)。這些高純度、薄過(guò)濾器按順序編號(hào)，并帶有耐化學(xué)腐蝕的聚丙烯支撐環(huán)。
規(guī)格：
EPA PM2.5空氣監(jiān)測(cè)膜過(guò)濾器規(guī)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 |
