WHA10312745

Whatman^® prepleated qualitative filter paper, Grade 604 1/2

circles, diam. 150 mm, pack of 100

• Synonym(s): Whatman filter, Whatman paper, Z695912, paper filter
• UNSPSC Code: 41104900
• NACRES: NB.24

Properties

• material: cellulose filters; circles
• packaging: pack of 100
• manufacturer/tradename: Whatman 10312745; Whatman Article No. 28414301 (US reference)
• parameter: 50 sec/100 mL speed (Herzberg)
• diam.: 150 mm
• pore size: 25 μm
• basis weight: 80 g/m²

Description

General description

Grade 604½ Qualitative Filter Papers for coarse precipitates.

Cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters give improved flow rate and increased loading capacity compared to equivalent quadrant folded filters.

Features and Benefits

• Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.
• Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed.
• Increased total loading capacity as more filter area is available.
• Maintained flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.
• The prepleating does not significantly affect any of the technical data, and the same figures may be used for the flat circles.

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