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Whatman filter paper # 2 - flat discs and sheets

grade 2:8 one


Filter paper with slightly higher retention capacity than grade 1 and a corresponding longer filtration time (or slightly lower filtration speed).

More absorbent than grade 1 paper.

Also available in pleated format (such as Grade 2V).

In addition to general filtration in the 8 µm particle range, its high absorbency is used, for example, to retain soil nutrients in plant growth studies.

It is also used to monitor specific contaminants of the atmosphere and in soil analyzes.

Grade 2: 8 µm

Technical features

Degree

Grade 2

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

Discs

Pieces per pack

100 pieces

Code Description
481002042 Whatman filter paper n.2 - flat discs diam. 42.5 mm
481002047 Whatman filter paper n.2 - flat discs diam. mm 47
481002055 Whatman filter paper n.2 - flat discs diam. 55 mm
481002070 Whatman filter paper n.2 - flat discs diam. 70 mm
481002090 Whatman filter paper n.2 - flat discs diam. 90 mm
481002110 Whatman filter paper n.2 - flat discs diam. 110 mm
481002125 Whatman filter paper n.2 - flat discs diam. 125 mm
481002150 Whatman filter paper n.2 - flat discs diam. 150 mm
481002185 Whatman filter paper n.2 - flat discs diam. 185 mm
481002240 Whatman filter paper n.2 - flat discs diam. 240 mm
481002270 Whatman filter paper n.2 - flat discs diam. 270 mm
481002320 Whatman filter paper n.2 - flat discs diam. 320 mm
481002325 Whatman filter paper n.2 - flat discs diam. 25 mm
481002385 Whatman filter paper n.2 - flat discs diam. 385 mm
481002917 Whatman filter paper n.2 - sheets 460x570 mm
481002929 Whatman filter paper n.2 - sheets 600x600 mm
481002931 Whatman filter paper n.2 - sheets 580x680 mm

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ENRICO BRUNO s.r.l.
Via Duino 140
10127 Torino Italy
Tel. +39 011 3160808
Fax +39 011 3160753
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