产品名称
Whatman® QM-A quartz filters, Circles, 25 mm 100/pk
material
circles , quartz membrane
sterility
non-sterile
feature
hydrophilic
packaging
pack of 100
manufacturer/tradename
Whatman 1851-025, Whatman Article No. 28418504 (US reference), Whatman Article No. 28418537 (US reference)
diam.
25 mm
pore size
2.2 μm
suitability
suitable for (air sampling in acidic gases, stacks, flues and aerosols)
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
Features and Benefits
- Temperature resistant up to 800°C
- Binder-free
Other Notes
Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.
Legal Information
Whatman is a registered trademark of Cytiva
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