WHA10936215

Whatman^® qualitative filter paper, Grade 93

circles, diam. 150 mm, pack of 1000

• Synonym(s): Whatman filter, Z699683, filter paper, paper filter
• UNSPSC Code: 41104900
• NACRES: NB.24

Properties

• material: cellulose filters; circles
• packaging: pack of 1000
• manufacturer/tradename: Whatman 1093-6215; Whatman Article No. 28417551 (US reference)
• parameter: 2.6 psi wet burst; 80 sec/100 mL speed (Herzberg)
• diam.: 150 mm
• thickness: 145 μm
• pore size: 10 μm (Particle retention)
• basis weight: 67 g/m²

Description

General description

These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms.

Grade 93: 10 μm (medium filter paper)
This filter paper is intermediate in speed and retention between Grades 1 and 4. Available in a dispenser pack, which can be attached to the wall or bench, placed on a shelf either upright or flat, and used as a normal carton or as a convenient dispenser. The envelopes are released individually for easy one-at-a-time removal. Package and envelopes are clearly marked for size and content.

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