TLG® Binder-Free Glass Microfiber Filters, Grade GF/1 (≡Grade GF/A), with particle retention of 1.6µm, high flow rate and loading capacity. These filters are often used for air filtration applications and water quality parameter measurements. Suitable for gravimetric determination of airborne particulates, waste water filtration and effluents monitoring, foodstuff analysis, and radioimmunoassay of weak β emitters. SPECIFICATIONS Material: Borosilicate Glass Particle Retention in Liquid: 1.6µm Water Flow Rate: 143mL/min2 Air Flow Rate: 4.3s/100mL/in2 Nominal Thickness: 250 to 300µm Nominal Weight: 50 to 56g/m2 Maximum Temperature: 500°C Package Size: 100 Pieces