{"product_id":"fpw1851047-whatman-qm-a-quartz-filters-circles-47-mm-100-pack","title":"Whatman Filters Quartz Qm-A 47mm Circle 100 Piece Pack Pack","description":"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. 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.  Particle Retention in Liquid (µm): 2.2    Air Flow (s\/100 mL\/in²): 6.4     Typical Thickness (µm): 450    Basis Weight (g\/m²): 85","brand":"Whatman","offers":[{"title":"FPW1851047","offer_id":46072307810548,"sku":"FPW1851047","price":298.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/7326\/5908\/files\/FPW1851047.png?v=1761602602","url":"https:\/\/www.livingstone.com.au\/products\/fpw1851047-whatman-qm-a-quartz-filters-circles-47-mm-100-pack","provider":"Livingstone","version":"1.0","type":"link"}