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Quartz Microfibre Filters
Grade Weight Thickness Penetration Pressure Drop Dry tensile strength, Dry tensile Temperature Pre-heated Q3400 85 0.43 < 0.002 450 200 80 900 °C +/- 10 % yes T 293 85 0.43 < 0.002 450 150 70 900 °C +/- 10 % no
(g/m2)
(mm)
0.3 µm (%)
at 5.3 cm/s (Pa)
longitudinal (N/m)
strength,
crosswise (N/m)
Resistance
Binder-free glass microfiber filters are recommended for analytical and gravimetric analyses and also as prefilters. These filters combine fast flow rates with high load capacity and the retention of very fine particles; they are biologically inert, are resistant to most chemicals and withstand temperatures up to 500 °C (grade 550-HA up to 550 °C).