GLASS M/FIBRE FILTER CIRCLES WHATMAN GF/B 4.7CM DIA BOX 100 Cotton Wool Clear borosilicate (type 1) glass

Clear borosilicate (type 1) glass with capacities and sizes (diameter x height) as indicated

Automatic self calibration triggered by ambient temperature change beyond set limits

and is specified in US Method 934-AH

mm   Ash %  54 For filtration of coarse and gelatinous precipitates   Fast  20-25 High 0

The glass is also covered by US Food and Drug Administration

GLASS M/FIBRE FILTER CIRCLES WHATMAN GF/B 4.7CM DIA BOX 100 Cotton Wool Clear borosilicate (type 1) glassAll Whatman Glass Microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Grade GF B: Three times thicker and with greater wet strength than GF A. Particle retention to 1m. Manufactured without chemical binder from high grade borosilicate glass They are suitable for gravity or low suction filtration Filtration speeds generally very much higher than conventional cellulose papers Efficient retention of micron