Filtry z włókna kwarcowego QM-A
Filtry z mikrowłókien kwarcowych o najwyższej czystości stosowane w wielu aplikacjach próbkowania powietrza, w tym gazów kwaśnych, kominowych, spalin oraz aerozoli. Filtry stosowane w próbkowaniu i analizie pyłu zawieszonego PM10.
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.

• Temperature resistant up to 800°C
• Binder-free

We offer three types of quartz fiber filters.

Whatman™ quartz microfiber filters
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.

Whatman™ QM-A filter circles and sheets
QM-A quartz microfiber filters 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.
Filtry z włókna kwarcowego QM-A
Filtry z włókna kwarcowego QM-A
Application Used for air sampling in acidic gases; stacks; flues and aerosols; particularly at high temperatures up to 500° C and in PM-10 testing.Filters for Use in US EPA PM10 Ambient air monitoring. 
Grade Grade QM-A 
Nominal Air Flow Rate 6.3 s/100 ml/in2 
Nominal Thickness 475 µm
Nominal Basis Weight 85 g/m2
Max recommended temperature 800 °C 
Material High-purity quartz (SiO2) 
Binder Type Binder Free 
Product Product Name Dimensions
1851-025 Quartz Air Sampling Filter; Grade QM-A; 25 mm circle (100 pcs) 25 mm
1851-032 Quartz Air Sampling Filter; Grade QM-A; 32 mm circle (100 pcs) 32 mm
1851-037 Quartz Air Sampling Filter; Grade QM-A; 37 mm circle (100 pcs) 37 mm
1851-047 Quartz Air Sampling Filter; Grade QM-A; 47 mm circle (100 pcs) 47 mm
1851-050 Quartz Air Sampling Filter; Grade QM-A; 50 mm circle (100 pcs) 50 mm
1851-055 Quartz Air Sampling Filter; Grade QM-A; 55 mm circle (100 pcs) 55 mm
1851-082 Quartz Air Sampling Filter; Grade QM-A; 82 mm circle (100 pcs) 82 mm
1851-085 Quartz Air Sampling Filter; Grade QM-A; 85 mm circle (100 pcs) 85 mm
1851-090 Quartz Air Sampling Filter; Grade QM-A; 90 mm circle (100 pcs) 90 mm
1851-101 Quartz Air Sampling Filter; Grade QM-A; 101.6 mm circle (100 pcs) 101.6 mm
1851-110 Quartz Air Sampling Filter; Grade QM-A; 110 mm circle (100 pcs) 110 mm
1851-118 Quartz Air Sampling Filter; Grade QM-A; 118 mm circle (100 pcs) 118 mm
1851-150 Quartz Air Sampling Filter; Grade QM-A; 150 mm circle (100 pcs) 150 mm
1851-865 Quartz Air Sampling Filter; Grade QM-A; 8 x 10 in sheet (25 pcs) 203.2 × 254 mm
1851-8866 Quartz Air Sampling Filter; Grade QM-A; 8 × 10 inch numbered circle (100 pcs) 203.2 × 254 mm