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Whatman filter paper # 5 - flat discs

grade 5:2.5 um

This filter paper guarantees the highest degree of filtration of fine particles among qualitative filters.

Capable of retaining the fine precipitates found in chemical analysis.

Low flow rate.

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

Grade 5: 2.5 µm

Technical features

Degree

Grade 5

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 <1 µg / g Calcium 8,3 µg / g Chromium 1,5 µg / g Copper 2 µg / g Iron 12 µg / g Lead <0.5 µg / g Magnesium 4 µg / g Manganese <0.5 µg / g Mercury <0.5 µg / g Potassium 2.3 µg / g Silicon 6, 2 µg / g Sodium 16.8 µg / g Zinc 64.5 µg / g

Applications

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

Format

Discs

Pieces per pack

100 pieces

Code Description
481005042 Whatman filter paper n.5 - flat discs diam. 42.5 mm
481005047 Whatman filter paper n.5 - flat discs diam. mm 47
481005055 Whatman filter paper n.5 - flat discs diam. 55 mm
481005070 Whatman filter paper n.5 - flat discs diam. 70 mm
481005090 Whatman filter paper n.5 - flat discs diam. 90 mm
481005110 Whatman filter paper n.5 - flat discs diam. 110 mm
481005125 Whatman filter paper n.5 - flat discs diam. 125 mm
481005150 Whatman filter paper n.5 - flat discs diam. 150 mm
481005185 Whatman filter paper n.5 - flat discs diam. 185 mm
481005240 Whatman filter paper n.5 - flat discs diam. 240 mm
481005320 Whatman filter paper n.5 - flat discs diam. 320 mm
481005325 Whatman filter paper n.5 - flat discs diam. 25 mm

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ENRICO BRUNO s.r.l.
Via Duino 140
10127 Torino Italy
Tel. +39 011 3160808
Fax +39 011 3160753
PEC pec@pec.enrico-bruno.it
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