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Key Documents

WHA10314844

Whatman® prepleated qualitative filter paper for technical use, Grade 1574 1/2

circles, diam. 125 mm, pack of 100

Synonyme(s) :

Z749419

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About This Item

Code UNSPSC :
41104900
Nomenclature NACRES :
NB.24

Matériaux

cellulose filters
circles

Conditionnement

pack of 100

Fabricant/nom de marque

Whatman 10314844
Whatman Article No. 28414362 (US reference)

Paramètres

85 sec/100 mL speed (Herzberg)

Diamètre

125 mm

Épaisseur

160 μm

Dimension de pores

7-12 μm (Particle retention)

Poids de base

90 g/m2

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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 1574 ½ : 7-12 μm (medium fast, very low fiber release filter paper)
A medium fast filter paper with high wet strength. Resistant against: sulfuric and nitric acid solutions (up to 40% at 50°C), hydrochloric (up to 10% at 100°C, 20% at 60°C, 25% at 20°C), alkalis (up to 10% at 20°C).

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

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