Z241830

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

circles, diam. 90 mm, pack of 100

• UNSPSC Code: 41104900

Properties

• material: circles ; cotton filters (high-quality cotton linters)
• packaging: pack of 100
• manufacturer/tradename: Whatman 1452-090; Whatman Article No. 28418101 (US reference)
• parameter: 235 sec/100 mL speed (Herzberg); 7 psi wet burst
• diam.: 90 mm
• thickness: 175 μm
• ash: ≤0.015%
• pore size: 7 μm (Particle retention)
• basis weight: 101 g/m²

Description

General description

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.

Other Notes

This product has been replaced by WHA1452090-ALDRICH | Whatman quantitative filter paper, hardened low-ash, Grade 52, circles, diam. 90 mm, pack of 100

Global SIAL customers (excluding Japan) can now order any product from the Cytiva Life Sciences consumables portfolio (prepack only) using GE′s product numbering system.

The legacy GE Whatman products that use the SIAL "Z" product numbering system will be discontinued and directly replaced with a product number using a "WHA" prefix plus the GE product code. For reference, the legacy "Z" product number is identified as a synonym on the "WHA" product number listing.

Legal Information

Whatman is a registered trademark of Cytiva