WHA1452240

Whatman^® quantitative filter paper, hardened low-ash, Grade 52

circles, diam. 240 mm, pack of 100

• Synonyme(s) : Z752762
• Code UNSPSC : 41104900
• Nomenclature NACRES : NB.24

Propriétés

• Matériaux: circles ; cotton filters (high-quality cotton linters)
• Conditionnement: pack of 100
• Fabricant/nom de marque: Whatman 1452-240; Whatman Article No. 28418105 (US reference)
• Paramètres: 235 sec/100 mL speed (Herzberg); 7 psi wet burst
• Diamètre: 240 mm
• Épaisseur: 175 μm
• Cendres: ≤0.015%
• Dimension de pores: 7 μm (Particle retention)
• Poids de base: 101 g/m²

Description

Description générale

The maximum ash content of these filter paper grades is intermediate between ashless and qualitative grades. They are particularly suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. Other characteristics include high wet strength and chemical resistance which are similar to the acid hardened ashless filter papers.

Grade 52: 7 μm (medium filter paper)
The general purpose hardened filter paper with medium retention and flow rate. Very hard surface.

Caractéristiques et avantages

• Manufactured from high-quality cotton linters and treated to remove trace metals
• High wet-strength and chemical resistance
• Nominal particle retention of 7 µm
• Medium flow rate (Herzberg filtration speed 235 s)
• High purity (0.015% ash maximum)
• Compatible with Hirsch or Büchner funnel applications

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