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Whatman 5V filter paper - folded discs

grade 5:2.5 um

Pleated filter paper has major advantages over flat round filters:
  • time savings required to fold round filters into squares to fit the cone of filter funnels in repetitive or multiple analyzes
  • reduction of the overall filtration time thanks to the larger filtering surface; the normal slowing down of the filtration speed due to particle loading is delayed
  • increase of the total load capacity thanks to the greater filtering surface
  • maintenance of the filtration speed due to the reduced contact of the filter paper with the wall of the funnel and, of course, due to the self-standing shape of the filter itself
  • pleating does not significantly affect any technical data and the same data as for round filters are valid

5V grade: 2.5 µm

This filter paper retains particles as small as 2.5 µm for qualitative analysis.

Slow filtration rate (Herzberg rate of 1420 s)

Technical features

Degree

Grade 5V

Nominal retention of particles in liquids (at 98% efficiency)

2.5 µm

Nominal thickness

200 µm

Typical water flow

5 ml / min

Nominal base weight

100 g / m²

Nominal air flow

96 s / 100 ml / in (for 9 cm diameter)

Nominal ash content

(determined by

incineration of the filter at 900 ° C

in the air)

0.06%

Material

Cellulose

Typical tracks element layers

Aluminum 2.5 µg / g Antimony <0.5 µg / g Arsenic <0.5 µg / g Barium <0.5 µg / g Boron

Applications

Excellent clarifying filter for turbid suspensions and for water and soil analysis.

Format

Pleated discs

Pieces per pack

100 pieces

Code Description
481205185 Whatman filter paper n.5V - folded discs diam. 185 mm

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10127 Torino Italy
Tel. +39 011 3160808
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