Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles – Cambridge Environmental Products, Inc.

Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles

Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles

Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles

Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles

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70mm

90mm

125mm

150mm

240mm

320mm

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Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.

Grade 3: 6 µm

Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels. The high absorbency is particularly valuable when the paper is used as a sample carrier.

Thickness	390 µm (typical)
Particle Retention	6 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration Speed	Approx. 2 s (Herzberg)
Ash Content	0.06%
Burst Strength	0.034 bar, wet burst; 1.930 bar, dry burst
Flow Rate	Medium flow, thick
Basis Weight	187 g/m²
Airflow Rate	26 s/100 ml/in²
Tensile Strength	72 N/15 mm Tensile M/D Dry

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Cytiva Whatman™ Qualitative Filter Paper: Grade 3 Circles