GE’s Whatman Grade 4V filter paper is well suited for qualitative analysis or general filtration of coarse particles. The fluted filter design increases filtration speed, flow rate, and loading capacity.
Very fast flow rate
Retention of coarse and gelatinous precipitates
Nominal particle retention rating of 20–25 µm
Fast filtration speed (Herzberg 37 s)
Fluted (pre-pleated) for compatibility with conical filter funnels without the need for further folding
Change Test. GE Healthcare’s Life Sciences business offers a variety of Whatman brand qualitative filter papers. Wet-strengthened and standard grades are available.
Fluted filter for capturing gelatinous precipitate
Whatman Grade 4V prepleated (fluted) filter paper from GE is frequently used to filter gelatinous precipitate or during general filtration that does not require the collection of fine particles. The filter sheets are also useful for rapid filtration of biological fluids or organic extracts prior to analysis.
Specification
Parameter :Grade 4V Fluted Filter Paper, FF, 18.5 cm circle (100 pcs)
Grade :Grade 4
Grade Type :Folded (Prepleated)
Dimensions :Ø 185 mm
Typical Particle Retention in Liquid1 :25 µm
Nominal Thickness :210 µm
Typical water flow rate2 :247 ml/min
Nominal Basis Weight :92 g/m²
Nominal Ash Content :0.06%
Material :Cellulose
Typical Trace Element Levels :Aluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g
Properties :Very fast
Application :Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
Supporting Analysis :Qualitative
Diameter :185 mm
Whatman Qualitative Filter Papers, Fluted, Grade 4V Whatman Filter Papers Range of products are mostly available in ready stock and it can delivered immediately throughout india
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