WHA10310247

Whatman^® application specific filter, prepleated qualitative filter paper, Grade 287 1/2

circles, diam. 185 mm, pack of 50

• Synonyme(s) : Whatman filter, Whatman paper, Z695483, paper filter
• Code UNSPSC : 41104900
• Nomenclature NACRES : NB.24

Propriétés

• Matériaux: cellulose membrane (Kieselguhr paper); circles
• Stérilité: non-sterile
• Caractéristiques: Grade 287 1/2
• Conditionnement: pack of 50
• Fabricant/nom de marque: Whatman 10310247; Whatman Article No. 28414166 (US reference)
• Paramètres: 330 sec/100 mL speed (Herzberg)
• Diamètre: 185 mm
• Épaisseur: 360 μm
• Poids de base: 161 g/m²

Description

Description générale

Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles:

• 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

Grade 287 ½: kieslghur paper
Application specific cellulose filter paper. Kieselguhr paper with a medium to slow flow rate. Additional adsorption effect, e.g., for the separation of very fine semi-colloidal turbidity, for clarifying milk serum, starch solutions, soil suspensions or sugar-containing solutions prior to polarimetry or refractometry.

Caractéristiques et avantages

• 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.

Autres remarques

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

Informations légales

Whatman is a registered trademark of Cytiva