Whatman® QM-A quartz filters

High-purity quartz (SiO2) microfiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures up to 500 °C and in PM-10 testing Technical Note PM10 Filters . Because of the low level of alkaline earth metals, ‘artifact’ products of sulfates and nitrates (from SO2 and NO2) are virtually eliminated. QM-A, sequentially numbered according to EPA standards, is suitable for most applications.

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Z753084 Whatman® quartz filter, Grade QM-H diam. 150 mm
    • Z753076 Whatman® quartz filter, Grade QM-H diam. 47 mm
    • Z759813 Whatman® quartz filter, Grade QM-H diam. 50 mm
    • Z675024 Whatman® QM-A quartz filters Circles, 37 mm 100/pk
    • Z675032 Whatman® QM-A quartz filters Circles, 47 mm 100/pk
    • Z675040 Whatman® QM-A quartz filters Circles, 90 mm 100/pk
    • Z655708 Whatman® QM-A quartz filters Circles, 150 mm 100/pk
    • Z741078 Whatman® QM-A quartz filters Circles, diam. 101.6 mm
    • Z741035 Whatman® QM-A quartz filters circles, diam. 32 mm
    • Z741051 Whatman® QM-A quartz filters circles, diam. 550 mm
    • Z741094 Whatman® QM-A quartz filters Sheets, 8 x 10 inches 25/pk
    • Z741027 Whatman® QM-A quartz filters Circles, 25 mm 100/pk
    • Z741043 Whatman® QM-A quartz filters Circles, 50 mm 100/pk
    • Z741108 Whatman® QM-A quartz filters Circles, 8 x 10 inches Numbered 100/pk
    • Z741086 Whatman® QM-A quartz filters Circles, 110 mm 100/pk
    • Z753068 Whatman® QM-A quartz filters circles, diam. 118 mm
    • Z753041 Whatman® QM-A quartz filters circles, diam. 85 mm
    • Z753033 Whatman® QM-A quartz filters circles, diam. 82 mm
    • Z753025 Whatman® QM-A quartz filters circles, diam. 45 mm
    • Z694851 Whatman® quartz filter, Grade QM-B, 42 mm