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Code 481202185

Whatman filter paper n.2V - folded discs diam. 185 mm

grade 2V: 8 a


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

Grade 2V: 8 µm

These filter discs are widely used in general filtration.

Excellent retention capacity as well as good filtration speed and load capacity.

Herzberg filtration rate of 240 s

Technical features

Degree

Grade 2V

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

8 µm

Nominal thickness

190 µm

Typical water flow

38 ml / min

Nominal base weight

97 g / m²

Nominal air flow

20 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 track element layers

Aluminum 3.6 µg / g Antimony <0.5 µg / g Arsenic <0.5 µg / g Barium <0.5 µg / g Boron

Applications

Used for monitoring specific contaminants in the atmosphere and in soil tests.

Format

Pleated discs

Pieces per pack

100 pieces



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