Whatman® QM-A quartz filters
ALDRICH/WHA1851025 - Circles, 25 mm 100/pk
Synonym: Z741027; glass fiber filters; quartz fiber filters
Product Type: Equipment/Book
| diam. | 25 mm |
| feature | hydrophilic |
| manufacturer/tradename | Whatman 1851-025 |
| Whatman Article No. 28418504 (US reference) | |
| Whatman Article No. 28418537 (US reference) | |
| material | circles |
| quartz membrane | |
| packaging | pack of 100 |
| pore size | 2.2 μm |
| sterility | non-sterile |
| suitability | suitable for (air sampling in acidic gases, stacks, flues and aerosols) |
| Features and Benefits: | • Temperature resistant up to 800°C • Binder-free |
| General description: | Cytiva′s high-purity quartz microfiber filters are used in many air sampling filter applications, including sampling of acidic gases, stacks, flues, and aerosols. Filters are suitable for PM-10 sampling and analysis. Because of the low level of alkaline earth metals, "artifact" products of sulfates and nitrates (from SO₂ and NO₂) are virtually eliminated. High-purity quartz microfiber filters are therefore applicable for particulate monitoring and heavy metal analysis. QM-A quartz microfiber filters from Cytiva come in a wide range of circle diameters, as well as 25-piece sheets. QM-A sheets (1851-8866) are sequentially numbered according to U.S. Environmental Protection Agency (EPA) standards and are suitable for most applications.• Grade: QM-A • Description: Quartz • Particle Retention in Liquid (μm): 2.2 • Air Flow (s/100 mL/in²): 6.4 • Typical Thickness (μm): 450 • Basis Weight (g/m²): 85 |
| Legal Information: | Whatman is a registered trademark of Cytiva |
| Other Notes: | Field of Use : For internal research use only. Products are not intended for diagnostic use or resale. |
| UNSPSC | 40161507 |