WHA1003070

Whatman^® qualitative filter paper, Grade 3

circles, diam. 70 mm, pack of 100

• Synonym(s): Whatman filter, Whatman filters, Whatman paper, Z240419, filter paper, filter papers, paper fitler
• UNSPSC Code: 41104900
• NACRES: NB.24

Properties

• material: cellulose filters; circles
• packaging: pack of 100
• manufacturer/tradename: Whatman 1003-070; Whatman Article No. 28413985 (US reference)
• parameter: 0.40 psi wet burst; 325 sec/100 mL speed (Herzberg)
• diam.: 70 mm
• thickness: 390 μm
• ash: ≤0.06%
• pore size: 6 μm (Particle retention)
• basis weight: 185 g/m²

Description

General description

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

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. This filter is also available in the FilterCup. This is a convenient, disposable 70 mm filter funnel with a 250 ml capacity molded from polypropylene with an integral, heat bonded filter (catalog number 1600-003).

Features and Benefits

• For use in büchner funnels.
• Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva