Whatman^® Qualitative Filter Paper, Grade 4, Diam. 42.5 mm, Whatman (CAT#: STEM-L-4607-LC)

Highlights

Very fast filtration speed

Cat Number: STEM-L-4607-LC

Application: Ideal for cleaning of organic extracts of biological fluids during analysis

Model: WHA1004042

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Description Specification Features Related Products

Description

The Whatman^® Qualitative Filter Paper, Grade 4 manufactured by Whatman is ideal for retention of coarse particles and gel-like precipitates, or for air pollution monitoring where requiring high flow rate. It features very fast filtration speed.

Specification

Material: Cellulose filters, circles
Packaging: Pack of 100
Parameter: 37 sec/100 mL speed (Herzberg), 0.22 psi wet burst
Diam.: 42.5 mm
Thickness: 205 μm
Ash: ≤0.06%
Pore size: 20-25 μm (Particle retention)
Basis weight: 92 g/m²

Features

Very fast filtration speed

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Whatman^® Qualitative Filter Paper, Grade 4, Diam. 240 mm, Whatman (CAT#: STEM-L-4608-LC)

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