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GE Healthcare Filter Circles, Qualitative, Grade 4

Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminium hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
Particle retention:20 to 25 µm
Filtration speed:37 s
Weight:96 g / m2
Thickness:0.20 mm
Ash:0.06 %
 Ø
mm
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