QM-A Quartz Circles, ยี่ห้อ Whatman

รหัสสินค้า : 1851-xxx

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.

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

Cytiva business offers 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 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.

Looking for a filter paper, membrane filter, or syringe filter? Let Cytiva help you find the optimal filter for your needs to ensure reliable analysis.

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) 

Format : Circles 

Binder type : Binder Free 

Select Product : Circles, Ø 25 mm